Overview

W. R. Berkley Corporation is an insurance holding company that is among the
largest commercial lines writers in the United States and operates worldwide in
two segments of the property and casualty business: Insurance and Reinsurance &
Monoline Excess. Our decentralized structure provides us with the flexibility to
respond quickly and efficiently to local or specific market conditions and to
pursue specialty business niches. It also allows us to be closer to our
customers in order to better understand their individual needs and risk
characteristics. While providing our business units with certain operating
autonomy, our structure allows us to capitalize on the benefits of economies of
scale through centralized capital, investment, reinsurance, enterprise risk
management, and actuarial, financial and corporate legal staff support. The
Company's primary sources of revenues and earnings are its insurance operations
and its investments.
  An important part of our strategy is to form new operating units to capitalize
on various business opportunities. Over the years, the Company has formed
numerous operating units that are focused on important parts of the economy in
the U.S., including healthcare, cyber security, energy and agriculture, and on
growing international markets, including the Asia-Pacific region, South America
and Mexico.
  The profitability of the Company's insurance business is affected primarily by
the adequacy of premium rates. The ultimate adequacy of premium rates is not
known with certainty at the time an insurance policy is issued because premiums
are determined before claims are reported. The ultimate adequacy of premium
rates is affected mainly by the severity and frequency of claims, which are
influenced by many factors, including natural and other disasters, regulatory
measures and court decisions that define and change the extent of coverage and
the effects of economic inflation on the amount of compensation for injuries or
losses. General insurance prices are also influenced by available insurance
capacity, i.e., the level of capital employed in the industry, and the
industry's willingness to deploy that capital.
  The Company's profitability is also affected by its investment income and
investment gains. The Company's invested assets are invested principally in
fixed maturity securities. The return on fixed maturity securities is affected
primarily by general interest rates, as well as the credit quality and duration
of the securities. Returns available on fixed maturity investments have been at
low levels for an extended period.
  The Company also invests in equity securities, merger arbitrage securities,
investment funds, private equity, loans and real estate related assets. The
Company's investments in investment funds and its other alternative investments
have experienced, and the Company expects to continue to experience, greater
fluctuations in investment income. The Company's share of the earnings or losses
from investment funds is generally reported on a one-quarter lag in order to
facilitate the timely completion of the Company's consolidated financial
statements.
The COVID-19 pandemic, including the related impact on the U.S. and global
economies, has adversely affected our results of operations. For the six months
ended June 30, 2021, the Company recorded approximately $40 million for current
accident year COVID-19-related losses, net of reinsurance. At the same time,
COVID-19 has led to reduced loss frequency in certain lines of business (which
has begun a return to pre-pandemic levels as many economies and legal systems
have reopened as a result of populations becoming vaccinated). The ultimate
impact of COVID-19 on the economy and the Company's results of operations,
financial position and liquidity is not within the Company's control and unclear
due to, among other factors, uncertainty in connection with its claims, reserves
and reinsurance recoverables.
The scope, duration and magnitude of the direct and indirect effects of COVID-19
continue to evolve in ways that are difficult or impossible to anticipate. While
many of the potential impacts on the Company have receded as populations have
begun to become vaccinated, new variants of the COVID-19 virus, including the
"Delta" variant, and the slowing of vaccination rates among certain populations,
continue to create risks to the Company. As a result, the impact of COVID-19 on
the Company's results of operations for the first six months of 2021 is not
necessarily indicative of its impact for the remainder of 2021 or beyond.
Despite the effects of COVID-19 to date, the Company's financial position and
liquidity improved for the six months ended June 30, 2021.

Critical Accounting Estimates


  The following presents a discussion of accounting policies and estimates
relating to reserves for losses and loss expenses, assumed premiums and
allowance for expected credit losses on investments. Management believes these
policies and estimates are the most critical to its operations and require the
most difficult, subjective and complex judgments.
  Reserves for Losses and Loss Expenses. To recognize liabilities for unpaid
losses, either known or unknown, insurers establish reserves, which is a balance
sheet account representing estimates of future amounts needed to pay claims and
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related expenses with respect to insured events which have occurred. Estimates
and assumptions relating to reserves for losses and loss expenses are based on
complex and subjective judgments, often including the interplay of specific
uncertainties with related accounting and actuarial measurements. Such estimates
are also susceptible to change as significant periods of time may elapse between
the occurrence of an insured loss, the report of the loss to the insurer, the
ultimate determination of the cost of the loss and the insurer's payment of that
loss.
  In general, when a claim is reported, claims personnel establish a "case
reserve" for the estimated amount of the ultimate payment based upon known
information about the claim at that time. The estimate represents an informed
judgment based on general reserving practices and reflects the experience and
knowledge of the claims personnel regarding the nature and value of the specific
type of claim. Reserves are also established on an aggregate basis to provide
for losses incurred but not reported ("IBNR") to the insurer, potential
inadequacy of case reserves and the estimated expenses of settling claims,
including legal and other fees and general expenses of administrating the claims
adjustment process. Reserves are established based upon the then current legal
interpretation of coverage provided.
  In examining reserve adequacy, several factors are considered in estimating
the ultimate economic value of losses. These factors include, among other
things, historical data, legal developments, changes in social attitudes and
economic conditions, including the effects of inflation. The actuarial process
relies on the basic assumption that past experience, adjusted judgmentally for
the effects of current developments and anticipated trends, is an appropriate
basis for predicting future outcomes. Reserve amounts are based on management's
informed estimates and judgments using currently available data. As additional
experience and other data become available and are reviewed, these estimates and
judgments may be revised. This may result in reserve increases or decreases that
would be reflected in our results in periods in which such estimates and
assumptions are changed.
  Reserves do not represent an exact calculation of liability. Rather, reserves
represent an estimate of what management expects the ultimate settlement and
claim administration will cost. While the methods for establishing reserves are
well tested over time, some of the major assumptions about anticipated loss
emergence patterns are subject to uncertainty. These estimates, which generally
involve actuarial projections, are based on management's assessment of facts and
circumstances then known, as well as estimates of trends in claims severity and
frequency, judicial theories of liability and other factors, including the
actions of third parties which are beyond the Company's control. These variables
are affected by external and internal events, such as inflation and economic
volatility, judicial and litigation trends, reinsurance coverage, legislative
changes and claim handling and reserving practices, which make it more difficult
to accurately predict claim costs. The inherent uncertainties of estimating
reserves are greater for certain types of liabilities where long periods of time
elapse before a definitive determination of liability is made. Because setting
reserves is inherently uncertain, the Company cannot provide assurance that its
current reserves will prove adequate in light of subsequent events.
  Loss reserves included in the Company's financial statements represent
management's best estimates based upon an actuarially derived point estimate and
other considerations. The Company uses a variety of actuarial techniques and
methods to derive an actuarial point estimate for each operating unit. These
methods include paid loss development, incurred loss development, paid and
incurred Bornhuetter-Ferguson methods and frequency and severity methods. In
circumstances where one actuarial method is considered more credible than the
others, that method is used to set the point estimate. For example, the paid
loss and incurred loss development methods rely on historical paid and incurred
loss data. For new lines of business, where there is insufficient history of
paid and incurred claims data, or in circumstances where there have been
significant changes in claim practices, the paid and incurred loss development
methods would be less credible than other actuarial methods. The actuarial point
estimate may also be based on a judgmental weighting of estimates produced from
each of the methods considered. Industry loss experience is used to supplement
the Company's own data in selecting "tail factors" and in areas where the
Company's own data is limited. The actuarial data is analyzed by line of
business, coverage and accident or policy year, as appropriate, for each
operating unit.
  The establishment of the actuarially derived loss reserve point estimate also
includes consideration of qualitative factors that may affect the ultimate
losses. These qualitative considerations include, among others, the impact of
re-underwriting initiatives, changes in the mix of business, changes in
distribution sources and changes in policy terms and conditions. Examples of
changes in terms and conditions that can have a significant impact on reserve
levels are the use of aggregate policy limits, the expansion of coverage
exclusions, whether or not defense costs are within policy limits, and changes
in deductibles and attachment points.
  The key assumptions used to arrive at the best estimate of loss reserves are
the expected loss ratios, rate of loss cost inflation, and reported and paid
loss emergence patterns. Expected loss ratios represent management's expectation
of losses at the time the business is written, before any actual claims
experience has emerged. This expectation is a significant determinant of the
estimate of loss reserves for recently written business where there is little
paid or incurred loss data to consider. Expected loss ratios are generally
derived from historical loss ratios adjusted for the impact of rate changes,
loss cost trends and known
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changes in the type of risks underwritten. Expected loss ratios are estimated
for each key line of business within each operating unit. Expected loss cost
inflation is particularly important for the long-tail lines, such as excess
casualty, and claims with a high medical component, such as workers'
compensation. Reported and paid loss emergence patterns are used to project
current reported or paid loss amounts to their ultimate settlement value. Loss
development factors are based on the historical emergence patterns of paid and
incurred losses, and are derived from the Company's own experience and industry
data. The paid loss emergence pattern is also significant to excess and assumed
workers' compensation reserves because those reserves are discounted to their
estimated present value based upon such estimated payout patterns. Management
believes the estimates and assumptions it makes in the reserving process provide
the best estimate of the ultimate cost of settling claims and related expenses
with respect to insured events which have occurred; however, different
assumptions and variables could lead to significantly different reserve
estimates.
  Loss frequency and severity are measures of loss activity that are considered
in determining the key assumptions described in our discussion of loss and loss
expense reserves, including expected loss ratios, rate of loss cost inflation
and reported and paid loss emergence patterns. Loss frequency is a measure of
the number of claims per unit of insured exposure, and loss severity is a
measure of the average size of claims. Factors affecting loss frequency include
the effectiveness of loss controls and safety programs and changes in economic
activity or weather patterns. Factors affecting loss severity include changes in
policy limits, retentions, rate of inflation and judicial interpretations.
  Another factor affecting estimates of loss frequency and severity is the loss
reporting lag, which is the period of time between the occurrence of a loss and
the date the loss is reported to the Company. The length of the loss reporting
lag affects our ability to accurately predict loss frequency (loss frequencies
are more predictable for lines with short reporting lags) as well as the amount
of reserves needed for incurred but not reported losses (less IBNR is required
for lines with short reporting lags). As a result, loss reserves for lines with
short reporting lags are likely to have less variation from initial loss
estimates. For lines with short reporting lags, which include commercial
automobile, primary workers' compensation, other liability (claims-made) and
property business, the key assumption is the loss emergence pattern used to
project ultimate loss estimates from known losses paid or reported to date. For
lines of business with long reporting lags, which include other liability
(occurrence), products liability, excess workers' compensation and liability
reinsurance, the key assumption is the expected loss ratio since there is often
little paid or incurred loss data to consider. Historically, the Company has
experienced less variation from its initial loss estimates for lines of
businesses with short reporting lags than for lines of business with long
reporting lags.
  The key assumptions used in calculating the most recent estimate of the loss
reserves are reviewed each quarter and adjusted, to the extent necessary, to
reflect the latest reported loss data, current trends and other factors
observed. If the actual level of loss frequency and severity are higher or lower
than expected, the ultimate losses will be different than management's estimate.
The following table reflects the impact of changes (which could be favorable or
unfavorable) in frequency and severity, relative to our assumptions, on our loss
estimate for claims occurring in 2020:
                   (In thousands)                Frequency (+/-)
                   Severity (+/-)        1%            5%             10%
                   1%                $ 89,102      $ 268,193      $ 492,056
                   5%                 268,193        454,376        687,105
                   10%                492,056        687,105        930,917


  Our net reserves for losses and loss expenses of approximately $12.2 billion
as of June 30, 2021 relate to multiple accident years. Therefore, the impact of
changes in frequency or severity for more than one accident year could be higher
or lower than the amounts reflected above. The impact of such changes would
likely be manifested gradually over the course of many years, as the magnitude
of the changes became evident.
  Approximately $2.7 billion, or 22%, of the Company's net loss reserves as of
June 30, 2021 relate to the Reinsurance & Monoline Excess segment. There is a
higher degree of uncertainty and greater variability regarding estimates of
excess workers' compensation and assumed reinsurance loss reserves. In the case
of excess workers' compensation, our policies generally attach at $1 million or
higher. The claims which reach our layer therefore tend to involve the most
serious injuries and many remain open for the lifetime of the claimant, which
extends the claim settlement tail. These claims also occur less frequently but
tend to be larger than primary claims, which increases claim variability. In the
case of assumed reinsurance our loss reserve estimates are based, in part, upon
information received from ceding companies. If information received from ceding
companies is not timely or correct, the Company's estimate of ultimate losses
may not be accurate. Furthermore, due to delayed reporting of claim information
by ceding companies, the claim settlement tail for assumed reinsurance is also
extended. Management considers the impact of delayed reporting and the extended
tail in its selection of loss development factors for these lines of business.
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  Information received from ceding companies is used to set initial expected
loss ratios, to establish case reserves and to estimate reserves for incurred
but not reported losses on assumed reinsurance business. This information, which
is generally provided through reinsurance intermediaries, is gathered through
the underwriting process and from periodic claim reports and other
correspondence with ceding companies. The Company performs underwriting and
claim audits of selected ceding companies to determine the accuracy and
completeness of information provided to the Company. The information received
from the ceding companies is supplemented by the Company's own loss development
experience with similar lines of business as well as industry loss trends and
loss development benchmarks.
  Following is a summary of the Company's reserves for losses and loss expenses
by business segment:
                                                       June 30,        December 31,
      (In thousands)                                     2021              2020
      Insurance                                     $  9,507,305      $  9,034,969
      Reinsurance & Monoline Excess                    2,657,354         

2,585,424

Net reserves for losses and loss expenses 12,164,659 11,620,393

Ceded reserves for losses and loss expenses 2,316,288 2,164,037

Gross reserves for losses and loss expenses $ 14,480,947 $ 13,784,430

Following is a summary of the Company's net reserves for losses and loss expenses by major line of business:


                                           Reported Case       Incurred But         Total
(In thousands)                                Reserves         Not Reported
June 30, 2021
Other liability                           $    1,673,040      $  2,998,980      $  4,672,020
Workers' compensation (1)                        993,429           871,719         1,865,148
Professional liability                           430,557           973,725         1,404,282
Commercial automobile                            449,611           404,732           854,343
Short-tail lines (2)                             297,384           414,128           711,512
Total Insurance                                3,844,021         5,663,284         9,507,305

Reinsurance & Monoline Excess (1) (3) 1,473,208 1,184,146


       2,657,354
Total                                     $    5,317,229      $  6,847,430      $ 12,164,659

December 31, 2020
Other liability                           $    1,534,514      $  2,864,760      $  4,399,274
Workers' compensation (1)                        977,035           873,072         1,850,107
Professional liability                           414,104           875,163         1,289,267
Commercial automobile                            442,975           398,688           841,663
Short-tail lines (2)                             295,313           359,345           654,658
Total Insurance                                3,663,941         5,371,028         9,034,969

Reinsurance & Monoline Excess (1) (3) 1,442,099 1,143,325


       2,585,424
Total                                     $    5,106,040      $  6,514,353      $ 11,620,393


___________
(1) Reserves for workers' compensation and Reinsurance & Monoline Excess are net
of an aggregate net discount of $472 million and $483 million as of June 30,
2021 and December 31, 2020, respectively.
(2) Short-tail lines include commercial multi-peril (non-liability), inland
marine, accident and health, fidelity and surety, boiler and machinery and other
lines.
(3) Reinsurance & Monoline Excess includes property and casualty reinsurance, as
well as operations that solely retain risk on an excess basis.
  The Company evaluates reserves for losses and loss adjustment expenses on a
quarterly basis. Changes in estimates of prior year losses are reported when
such changes are made. The changes in prior year loss reserve estimates are
generally the result of ongoing analysis of recent loss development trends.
Original estimates are increased or decreased as additional information becomes
known regarding individual claims and aggregate claim trends.
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  Certain of the Company's insurance and reinsurance contracts are
retrospectively rated, whereby the Company collects more or less premiums based
on the level of loss activity. For those contracts, changes in loss and loss
adjustment expenses for prior years may be fully or partially offset by
additional or return premiums.
  Net prior year development (i.e., the sum of prior year reserve changes and
prior year earned premiums changes) for the six months ended June 30, 2021 and
2020 are as follows:
           (In thousands)                                  2021          2020
           Net increase in prior year loss reserves     $ (1,530)     $ (2,050)
           Increase in prior year earned premiums          5,384         9,077
           Net favorable prior year development         $  3,854      $  7,027


The COVID-19 global pandemic has impacted, and may further impact, the Company's
results through its effect on claim frequency and severity. Loss cost trends
have been impacted and may be further impacted by COVID-19-related claims in
certain lines of business. Losses incurred from COVID-19-related claims have
been offset, to a certain extent, by lower claim frequency in certain lines of
our businesses; however, as the economy and legal systems have reopened, the
benefit of lower claim frequency has begun to abate. Although as populations
have continued to be vaccinated against the virus and the effects of the
pandemic have receded in many jurisdictions, most particularly the United
States, it remains too early to determine the ultimate net impact of COVID-19 on
the Company. New variants of the COVID-19 virus, including the "Delta" variant,
and the slowing of vaccination rates among certain populations continue to
create risks with respect to loss costs and the potential for renewed impact of
the other effects of COVID-19 associated with economic conditions, inflation,
and social distancing and work from home rules.
Most of the COVID-19-related claims reported to the Company to date involve
certain short-tailed lines of business, including contingency and event
cancellation, business interruption, and film production delay. The Company has
also received COVID-19-related claims for longer-tailed casualty lines of
business such as workers' compensation and other liability; however, the
estimated incurred loss impact for these reported claims are not material at
this time. Given the continuing uncertainty regarding the pandemic's
pervasiveness, the future impact that the pandemic may have on claim frequency
and severity remains uncertain at this time.
The Company has estimated the potential COVID-19 impact to its contingency and
event cancellation, workers' compensation, and other lines of business under a
number of possible scenarios; however, due to COVID-19's continued evolving
impact, there remains a high degree of uncertainty around the Company's COVID-19
reserves. In addition, should the pandemic continue or worsen as a result of new
COVID-19 variants or otherwise, governments in the jurisdictions where we
operate may renew their efforts to expand policy coverage terms beyond the
policy's intended coverage. Accordingly, losses arising from these actions, and
the other factors described above, could exceed the Company's reserves
established for those related policies.
As of June 30, 2021, the Company had recognized losses for COVID-19-related
claims activity, net of reinsurance, of approximately $241 million, of which
$208 million relates to the Insurance segment and $33 million relates to the
Reinsurance & Monoline Excess segment. Such $241 million of COVID-19-related
losses included $164 million of reported losses and $77 million of IBNR. For the
six months ended June 30, 2021, the Company recognized current accident year
losses for COVID-19-related claims activity, net of reinsurance, of
approximately $40 million, of which $38 million relates to the Insurance segment
and $2 million relates to the Reinsurance & Monoline Excess segment.
During the six months ended June 30, 2021, favorable prior year development (net
of additional and return premiums) of $4 million included $12 million of
favorable development for the Insurance segment, partially offset by $8 million
of adverse development for the Reinsurance & Monoline Excess segment.
The overall favorable development for the Insurance segment was primarily
attributable to favorable development on the 2020 accident year, partially
offset by adverse development on the 2016 through 2019 accident years. The
favorable development on the 2020 accident year was largely concentrated in the
commercial auto liability and other liability lines of business. During 2020 the
Company achieved larger rate increases in these lines of business than were
contemplated in our budget and in our initial loss ratio selections. The Company
also experienced significantly lower reported claim frequency in these lines in
2020 relative to historical averages, and lower reported incurred losses
relative to our expectations. We believe that the lower claim frequency and
lower reported incurred losses were caused by the impacts of the COVID-19
pandemic, for example, lockdowns, reduced driving and traffic, work from home,
court closures, etc.; however, due to the ongoing uncertainty regarding the
ultimate impacts of the pandemic on accident year 2020 incurred losses, the
Company did not adjust its reserves due to these lower trends during 2020.
However, as the accident year has begun to mature, the Company has recognized
some of the favorable accident year 2020 experience in its ultimate loss picks
made as of June 30, 2021. The adverse development on the 2016 through 2019
accident years is concentrated in the other liability line of business, and is
driven by a larger number
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than expected of large losses reported. The large losses particularly impacted
directors and officers liability and excess and surplus lines casualty classes
of business.
The overall adverse development for the Reinsurance & Monoline Excess segment
was mainly concentrated in the non-proportional reinsurance assumed liability
and non-proportional reinsurance assumed property lines of business, related to
accident years 2018 through 2020. The development was driven by higher than
expected reported losses on excess of loss treaties written in the U.S. and U.K.
During the six months ended June 30, 2020, favorable prior year development (net
of additional and return premiums) of $7 million included $12 million of
favorable development for the Insurance segment, partially offset by $5 million
of adverse development for the Reinsurance & Monoline Excess segment.
The overall favorable development for the Insurance segment was primarily
attributable to favorable development on workers' compensation business,
partially offset by adverse development on professional liability business. The
favorable workers' compensation development was spread across many accident
years, including prior to 2010, but was especially significant in accident year
2019. The favorable workers' compensation development reflects a continuation of
the benign loss cost trends experienced during recent years, particularly the
favorable claim frequency trends (i.e., number of reported claims per unit of
exposure). The Company's ongoing workers' compensation claims management
efforts, including active medical case management and use of networks and
specialty vendors to control medical and pharmaceutical benefit costs, have also
added to the favorable workers' compensation prior year development. The adverse
professional liability development was concentrated in accident years 2016
through 2018 and predominately resulted from a greater than expected number of
large losses being reported in the period in two niches of our professional
liability business.
The adverse development for the Reinsurance & Monoline Excess segment was mainly
driven by non-proportional reinsurance assumed liability business written in the
U.K., primarily from accident years 2014 through 2018. The development was
driven by a greater than expected number of reported large losses during the
period.
Reserve Discount. The Company discounts its liabilities for certain workers'
compensation reserves. The amount of workers' compensation reserves that were
discounted was $1,406 million and $1,655 million at June 30, 2021 and
December 31, 2020, respectively. The aggregate net discount for those reserves,
after reflecting the effects of ceded reinsurance, was $472 million and $483
million at June 30, 2021 and December 31, 2020, respectively. At June 30, 2021,
discount rates by year ranged from 0.7% to 6.5%, with a weighted average
discount rate of 3.5%.
  Substantially all of the workers' compensation discount (97% of total
discounted reserves at June 30, 2021) relates to excess workers' compensation
reserves. In order to properly match loss expenses with income earned on
investment securities supporting the liabilities, reserves for excess workers'
compensation business are discounted using risk-free discount rates determined
by reference to the U.S. Treasury yield curve. These rates are determined
annually based on the weighted average rate for the period. Once established, no
adjustments are made to the discount rate for that period, and any increases or
decreases in loss reserves in subsequent years are discounted at the same rate,
without regard to when any such adjustments are recognized. The expected loss
and loss expense payout patterns subject to discounting are derived from the
Company's loss payout experience.
  The Company also discounts reserves for certain other long-duration workers'
compensation reserves (representing approximately 3% of total discounted
reserves at June 30, 2021), including reserves for quota share reinsurance and
reserves related to losses regarding occupational lung disease. These reserves
are discounted at statutory rates permitted by the Department of Insurance of
the State of Delaware.
  Assumed Reinsurance Premiums. The Company estimates the amount of assumed
reinsurance premiums that it will receive under treaty reinsurance agreements at
the inception of the contracts. These premium estimates are revised as the
actual amount of assumed premiums is reported to the Company by the ceding
companies. As estimates of assumed premiums are made or revised, the related
amount of earned premiums, commissions and incurred losses associated with those
premiums are recorded. Estimated assumed premiums receivable were approximately
$54 million at June 30, 2021 and $44 million at December 31, 2020. The assumed
premium estimates are based upon terms set forth in reinsurance agreements,
information received from ceding companies during the underwriting and
negotiation of agreements, reports received from ceding companies and
discussions and correspondence with reinsurance intermediaries. The Company also
considers its own view of market conditions, economic trends and experience with
similar lines of business. These premium estimates represent management's best
estimate of the ultimate amount of premiums to be received under its assumed
reinsurance agreements.

Allowance for Expected Credit Losses on Investments.

Fixed Maturity Securities - For fixed maturity securities in an unrealized
loss position where the Company intends to sell, or it is more likely than not
that it will be required to sell the security before recovery in value, the
amortized cost basis is written down to fair value through net investment gains
(losses). For fixed maturity securities in an unrealized loss position
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where the Company does not intend to sell, or it is more likely than not that it
will not be required to sell the security before recovery in value, the Company
evaluates whether the decline in fair value has resulted from credit losses or
all other factors (non-credit factors). In making this assessment, the Company
considers the extent to which fair value is less than amortized cost, changes to
the rating of the security by a rating agency, and adverse conditions
specifically related to the security, among other factors. If this assessment
indicates that a credit loss exists, the present value of cash flows expected to
be collected from the security are compared to the amortized cost basis of the
security. If the present value of cash flows expected to be collected is less
than the amortized cost basis, an allowance for expected credit losses is
recorded for the credit loss through net investment gains (losses), limited by
the amount that the fair value is less than the amortized cost basis. Effective
January 1, 2020, the allowance is adjusted for any change in expected credit
losses and subsequent recoveries through net investment gains (losses). The
impairment related to non-credit factors is recognized in other comprehensive
income (loss).
  The Company's credit assessment of allowance for expected credit losses uses a
third party model for available for sale and held to maturity securities, as
well as loans receivable. The allowance for expected credit losses is generally
based on the performance of the underlying collateral under various economic and
default scenarios that involve subjective judgments and estimates by management.
Modeling these securities involves various factors, such as projected default
rates, the nature and realizable value of the collateral, if any, the ability of
the issuer to make scheduled payments, historical performance and other relevant
economic and performance factors. A discounted cash flow analysis is used to
ascertain the amount of the allowance for expected credit losses, if any. In
general, the model reverts to the rating-level long-term average marginal
default rates based on 10 years of historical data, beyond the forecast period.
For other inputs, the model in most cases reverts to the baseline long-term
assumptions linearly over 5 years beyond the forecast period. The long-term
assumptions are based on the historical averages.
  The Company classifies its fixed maturity securities by credit rating,
primarily based on ratings assigned by credit rating agencies. For purposes of
classifying securities with different ratings, the Company uses the average of
the credit ratings assigned, unless in limited situations the Company's own
analysis indicates an internal rating is more appropriate. Securities that are
not rated by a rating agency are evaluated and classified by the Company on a
case-by-case basis.
  A summary of the Company's non-investment grade fixed maturity securities that
were in an unrealized loss position at June 30, 2021 is presented in the table
below:
                       Number of        Aggregate
($ in thousands)       Securities       Fair Value       Gross Unrealized Loss
Foreign government         27          $  108,910      $                30,171
Corporate                  10              36,482                        2,058
Mortgage-backed             4                 276                           19
Asset-backed                1                 113                            1

Total                      42          $  145,781      $                32,249


  As of June 30, 2021, the Company has recorded an allowance for expected credit
losses on fixed maturity securities of $19 million. The Company has evaluated
the remaining fixed maturity securities in an unrealized loss position and
believes the unrealized losses are due primarily to temporary market and
sector-related factors rather than to issuer-specific factors. None of these
securities are delinquent or in default under financial covenants. Based on its
assessment of these issuers, the Company expects them to continue to meet their
contractual payment obligations as they become due.
Loans Receivable - For loans receivable, the Company estimates an allowance for
expected credit losses based on relevant information about past events,
including historical loss experience, current conditions and forecasts that
affect the expected collectability of the amortized cost of the financial
asset. The allowance for expected credit losses is presented as a reduction to
amortized cost of the financial asset in the consolidated balance sheet and
changes to the estimate for expected credit losses are recognized through net
investment gains (losses). Loans receivable are reported net of an allowance for
expected credit losses of $2 million and $5 million as of June 30, 2021 and
December 31, 2020, respectively.
  Fair Value Measurements. The Company's fixed maturity available for sale
securities, equity securities, and its arbitrage trading account securities are
carried at fair value. Fair value is defined as "the price that would be
received to sell an asset or paid to transfer a liability in an orderly
transaction between market participants at the measurement date." The Company
utilizes a fair value hierarchy that prioritizes the inputs to valuation
techniques used to measure fair value into three broad levels. Level 1 inputs
are quoted prices (unadjusted) in active markets for identical assets or
liabilities that the reporting entity has the ability to access at the
measurement date. Level 2 inputs are inputs other than quoted prices included
within Level 1 that are observable for similar assets in active markets. Level 3
inputs are unobservable inputs for the asset or liability. Unobservable inputs
may only be used to measure fair value to the extent that observable inputs are
not available. The fair
                                       37
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value of the vast majority of the Company's portfolio is based on observable data (other than quoted prices) and, accordingly, is classified as Level 2.


  In classifying particular financial securities in the fair value hierarchy,
the Company uses its judgment to determine whether the market for a security is
active and whether significant pricing inputs are observable. The Company
determines the existence of an active market by assessing whether transactions
occur with sufficient frequency and volume to provide reliable pricing
information. The Company determines whether inputs are observable based on the
use of such information by pricing services and external investment managers,
the uninterrupted availability of such inputs, the need to make significant
adjustments to such inputs and the volatility of such inputs over time. If the
market for a security is determined to be inactive or if significant inputs used
to price a security are determined to be unobservable, the security is
categorized in Level 3 of the fair value hierarchy.
  Because many fixed maturity securities do not trade on a daily basis, the
Company utilizes pricing models and processes which may include benchmark
curves, benchmarking of like securities, sector groupings and matrix pricing.
Market inputs used to evaluate securities include benchmark yields, reported
trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark
securities, bids, offers and reference data. Quoted prices are often unavailable
for recently issued securities that are infrequently traded or securities that
are only traded in private transactions. For publicly traded securities for
which quoted prices are unavailable, the Company determines fair value based on
independent broker quotations and other observable market data. For securities
traded only in private negotiations, the Company determines fair value based
primarily on the cost of such securities, which is adjusted to reflect prices of
recent placements of securities of the same issuer, financial data, projections
and business developments of the issuer and other relevant information.

The following is a summary of pricing sources for the Company's fixed maturity securities available for sale as of June 30, 2021:


                                       Carrying        Percent
($ in thousands)                        Value          of Total

Pricing source: Independent pricing services $ 15,340,983 98.5 % Syndicate manager

                         52,962          0.3
Directly by the Company based on:
Observable data                          185,982          1.2

Total                               $ 15,579,927        100.0  %


  Independent pricing services - Substantially all of the Company's fixed
maturity securities available for sale were priced by independent pricing
services (generally one U.S. pricing service plus additional pricing services
with respect to a limited number of foreign securities held by the Company). The
prices provided by the independent pricing services are generally based on
observable market data in active markets (e.g., broker quotes and prices
observed for comparable securities). The determination of whether markets are
active or inactive is based upon the volume and level of activity for a
particular asset class. The Company reviews the prices provided by pricing
services for reasonableness based upon current trading levels for similar
securities. If the prices appear unusual to the Company, they are re-examined
and the value is either confirmed or revised. In addition, the Company
periodically performs independent price tests of a sample of securities to
ensure proper valuation and to verify our understanding of how securities are
priced. As of June 30, 2021, the Company did not make any adjustments to the
prices provided by the pricing services. Based upon the Company's review of the
methodologies used by the independent pricing services, these securities were
classified as Level 2.
  Syndicate manager - The Company has a 15% participation in a Lloyd's
syndicate, and the Company's share of the securities owned by the syndicate is
priced by the syndicate's manager. The majority of the securities are liquid,
short duration fixed maturity securities. The Company reviews the syndicate
manager's pricing methodology and audited financial statements and holds
discussions with the syndicate manager as necessary to confirm its understanding
and agreement with security prices. Based upon the Company's review of the
methodologies used by the syndicate manager, these securities were classified as
Level 2.
  Observable data - If independent pricing is not available, the Company prices
the securities directly. Prices are based on observable market data where
available, including current trading levels for similar securities and
non-binding quotations from brokers. The Company generally requests two or more
quotes. If more than one quote is received, the Company sets a price within the
range of quotes received based on its assessment of the credibility of the quote
and its own evaluation of the security. The Company generally does not adjust
quotes obtained from brokers. Since these securities were priced based on
observable data, they were classified as Level 2.
                                       38
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  Cash flow model - If the above methodologies are not available, the Company
prices securities using a discounted cash flow model based upon assumptions as
to prevailing credit spreads, interest rates and interest rate volatility, time
to maturity and subordination levels. Discount rates are adjusted to reflect
illiquidity where appropriate. These securities were classified as Level 3.


                                       39
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Results of Operations for the Six Months Ended June 30, 2021 and 2020 Business Segment Results



Following is a summary of gross and net premiums written, net premiums earned,
loss ratios (losses and loss expenses incurred expressed as a percentage of net
premiums earned), expense ratios (underwriting expenses expressed as a
percentage of net premiums earned) and GAAP combined ratios (sum of loss ratio
and expense ratio) for each of our business segments for the six months ended
June 30, 2021 and 2020. The GAAP combined ratio represents a measure of
underwriting profitability, excluding investment income. A GAAP combined ratio
in excess of 100 indicates an underwriting loss; a number below 100 indicates an
underwriting profit.
            ($ in thousands)                       2021              2020
            Insurance:
            Gross premiums written            $ 4,561,859       $ 3,859,511
            Net premiums written                3,734,036         3,126,475
            Net premiums earned                 3,332,181         2,949,999
            Loss ratio                               61.3  %           66.1  %
            Expense ratio                            28.9  %           31.0  %
            GAAP combined ratio                      90.2  %           97.1  %
            Reinsurance & Monoline Excess:
            Gross premiums written            $   584,089       $   504,107
            Net premiums written                  528,183           459,189
            Net premiums earned                   489,399           418,334
            Loss ratio                               57.4  %           70.3  %
            Expense ratio                            30.6  %           32.6  %
            GAAP combined ratio                      88.0  %          102.9  %
            Consolidated:
            Gross premiums written            $ 5,145,948       $ 4,363,618
            Net premiums written                4,262,219         3,585,664
            Net premiums earned                 3,821,580         3,368,333
            Loss ratio                               60.8  %           66.6  %
            Expense ratio                            29.1  %           31.2  %
            GAAP combined ratio                      89.9  %           97.8  %


  Net Income to Common Stockholders. The following table presents the Company's
net income to common stockholders and net income per diluted share for the six
months ended June 30, 2021 and 2020:
            (In thousands, except per share data)        2021           2020
            Net income to common stockholders         $ 466,763      $ 66,842
            Weighted average diluted shares             186,985       190,078
            Net income per diluted share              $    2.50      $   0.35


  The Company reported net income to common stockholders of $467 million in 2021
compared to $67 million in 2020. The $400 million increase in net income was
primarily due to an after-tax increase in underwriting income of $244 million
mainly due to the growth in premium rates and exposure as well as reductions in
loss ratio partly due to lower catastrophe losses and in expense ratio driven by
net earned premium growth outpacing expense growth, an after-tax increase in net
investment gains of $125 million (primarily resulting from the sale of certain
real estate assets, change in market value on equity securities and the gain
from disposition of an asset in an investment fund), an after-tax increase in
net investment income of $52 million primarily due to investment funds, a
reduction of $10 million in tax expense due to a change in the effective tax
rate, an after-tax increase in profits from non-insurance businesses of $4
million and an after-tax increase in profit from insurance service businesses of
$2 million, partially offset by an after-tax decrease in foreign currency gains
of $17 million, an after-tax increase in corporate expenses of $18 million which
includes an after-tax debt extinguishment expense of $9 million on debt redeemed
in 2021 and increased incentive compensation costs, an after-tax decrease in
other income of $1 million and an after-tax increase in minority interest
expense of $1 million. The number of weighted average diluted shares decreased
by approximately three million for 2021 compared to 2020 mainly reflecting
shares repurchased in 2020 and 2021.

                                       40
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  Premiums. Gross premiums written were $5,146 million in 2021, an increase of
18% from $4,364 million in 2020. The increase was due to a $702 million increase
in the Insurance segment and a $80 million increase in the Reinsurance &
Monoline Excess segment. Approximately 81% of premiums expiring in 2021 were
renewed, and 79% of premiums expiring in 2020 were renewed.

Average renewal premium rates for insurance and facultative reinsurance increased 9.8% in 2021 when adjusted for changes in exposures, and increased 11.2% excluding workers' compensation.


  A summary of gross premiums written in 2021 compared with 2020 by line of
business within each business segment follows:
•Insurance - gross premiums increased 18% to $4,562 million in 2021 from $3,860
million in 2020. Gross premiums increased $248 million (18%) for other
liability, $234 million (43%) for professional liability, $119 million (27%) for
commercial auto and $101 million (11%) for short-tail lines.
•Reinsurance & Monoline Excess - gross premiums increased 16% to $584 million in
2021 from $504 million in 2020. Gross premiums increased $57 million (20%) for
casualty reinsurance, $21 million (19%) for monoline excess and $2 million (2%)
for property reinsurance.

Net premiums written were $4,262 million in 2021, an increase of 19% from $3,586 million in 2020. Ceded reinsurance premiums as a percentage of gross written premiums were 17% in 2021 and 18% in 2020.


  Premiums earned increased 13% to $3,822 million in 2021 from $3,368 million in
2020. Insurance premiums (including the impact of rate changes) are generally
earned evenly over the policy term, and accordingly, recent rate increases will
be earned over the upcoming quarters. Premiums earned in 2021 are related to
business written during both 2021 and 2020. Audit premiums were $84 million in
2021 compared with $83 million in 2020.

Net Investment Income. Following is a summary of net investment income for the six months ended June 30, 2021 and 2020:


                                                                                                   Average Annualized
                                                          Amount                                         Yield
($ in thousands)                                  2021               2020                      2021                       2020
Fixed maturity securities, including cash and
cash equivalents and loans receivable         $ 191,673          $ 233,861                              2.2  %                3.1  %
Investment funds                                100,246            (16,975)                            14.8                  (2.8)
Arbitrage trading account                        22,989             32,442                              8.4                  11.6
Equity securities                                13,392              4,288                              4.9                   2.4
Real estate                                       2,032             11,141                              0.2                   1.1
Gross investment income                         330,332            264,757                              3.1                   2.7
Investment expenses                              (3,568)            (4,563)                               -                     -
Total                                         $ 326,764          $ 260,194                              3.0  %                2.7  %


  Net investment income increased 26% to $327 million in 2021 from $260 million
in 2020 due primarily to a $117 million increase in income from investment funds
primarily from financial services and energy funds, a $9 million increase from
equity securities and a $1 million decrease in investment expense, partially
offset by a $42 million decrease in income from fixed maturity securities mainly
driven by lower investment yields, a $9 million decrease from the arbitrage
trading account and a $9 million decrease in real estate. The Company shortened
the duration of its fixed maturity security portfolio, thereby reducing the
potential impact of mark-to-market on the portfolio and positioning the Company
to react quickly to changes in the current interest rate environment. Average
invested assets, at cost (including cash and cash equivalents), were $21.6
billion in 2021 and $19.5 billion in 2020.
  Insurance Service Fees. The Company earns fees from an insurance distribution
business, a third-party administrator and as a servicing carrier of workers'
compensation assigned risk plans for certain states. Insurance service fees
increased to $48 million in 2021 from $46 million in 2020, mainly due to the
business recovery from the pandemic.
  Net Realized and Unrealized Gains (Losses) on Investments. The Company buys
and sells securities and other investment assets on a regular basis in order to
maximize its total return on investments. Decisions to sell securities and other
investment assets are based on management's view of the underlying fundamentals
of specific investments as well as management's expectations regarding interest
rates, credit spreads, currency values and general economic conditions. Net
                                       41
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realized and unrealized gains on investments were $72 million in 2021 compared
with net losses of $82 million in 2020. The gains of $72 million in 2021 reflect
net realized gains on investments of $115 million (primarily due to the sale of
certain real estate assets and the disposition of an investment fund) partially
offset by an increase in unrealized losses on equity securities of $43 million.
In 2020, the net losses of $82 million reflected net realized gains on
investment sales of $11 million and an increase in unrealized losses on equity
securities of $93 million, which was primarily due to market disruptions as a
result of COVID-19.
Change in Allowance for Expected Credit Losses on Investments. Based on credit
factors, the allowance for expected credit losses is increased or decreased
depending on the percentage of unrealized loss relative to amortized cost by
security, changes in rating of the security by a rating agency, and adverse
conditions specifically related to the security, among other factors. For the
six months ended June 30, 2021, the pre-tax change in allowance for expected
credit losses on investments increased by $13 million ($10 million after-tax),
which is reflected in net investment gains (losses), primarily related to
foreign government securities which did not previously have an allowance. For
the six months ended June 30, 2020, the pre-tax change in allowance for expected
credit losses on investments increased by $18 million ($14 million after-tax),
which is reflected in net investment gains (losses) primarily related to market
disruptions as a result of COVID-19.
Revenues from Non-Insurance Businesses. Revenues from non-insurance businesses
were derived from businesses engaged in the distribution of promotional
merchandise, world-wide textile solutions and aviation-related businesses that
provide services to aviation markets, including (i) the distribution,
manufacturing, repair and overhaul of aircraft parts and components, (ii) the
sale of new and used aircraft, and (iii) avionics, fuel, maintenance, storage
and charter services. Revenues from non-insurance businesses were $197 million
in 2021 and $169 million in 2020. The increase mainly relates to the business
recovery from COVID-19 on aviation-related and textile businesses.
  Losses and Loss Expenses. Losses and loss expenses increased to $2,325 million
in 2021 from $2,242 million in 2020. The consolidated loss ratio was 60.8% in
2021 and 66.6% in 2020. Catastrophe losses, net of reinsurance recoveries, were
$80 million (including current accident year losses of approximately $40 million
related to COVID-19) in 2021 and $225 million (including losses of approximately
$143 million related to COVID-19) in 2020. Favorable prior year reserve
development (net of premium offsets) was $4 million in 2021 and $7 million in
2020. The loss ratio excluding catastrophe losses and prior year reserve
development was 58.8% in 2021 and 60.1% in 2020.
  A summary of loss ratios in 2021 compared with 2020 by business segment
follows:
•Insurance - The loss ratio was 61.3% in 2021 and 66.1% in 2020. Catastrophe
losses were $70 million in 2021 compared with $171 million in 2020. The Company
reflected a best estimate (net of reinsurance) based upon available information
for current accident year COVID-19-related losses of approximately $38 million,
primarily related to contingency and event cancellation coverage. Favorable
prior year reserve development was $12 million in both 2021 and 2020. The loss
ratio excluding catastrophe losses and prior year reserve development decreased
0.9 points to 59.7% in 2021 from 60.6% in 2020.
•Reinsurance & Monoline Excess - The loss ratio was 57.4% in 2021 and 70.3% in
2020. Catastrophe losses were $10 million in 2021 compared with $54 million in
2020. The Company reflected a best estimate (net of reinsurance) based upon
available information for current accident year COVID-19-related losses of
approximately $2 million, primarily related to excess workers' compensation and
short-tail lines. Adverse prior year reserve development was $8 million in 2021
and $5 in 2020. The loss ratio excluding catastrophe losses and prior year
reserve development decreased 2.7 points to 53.5% in 2021 from 56.2% in 2020.
Other Operating Costs and Expenses. Following is a summary of other operating
costs and expenses:
   ($ in thousands)                                          2021           

2020


   Policy acquisition and insurance operating expenses   $ 1,111,483      $ 1,051,158
   Insurance service expenses                                 42,575           42,995
   Net foreign currency gains                                 (6,719)         (28,923)
   Debt extinguishment costs                                  11,520                -
   Other costs and expenses                                  105,114           93,943
   Total                                                 $ 1,263,973      $ 1,159,173


  Policy acquisition and insurance operating expenses are comprised of
commissions paid to agents and brokers, premium taxes and other assessments and
internal underwriting costs. Policy acquisition and insurance operating expenses
increased 6% and net premiums earned increased 13% from 2020. The expense ratio
(underwriting expenses expressed as a percentage of net premiums earned) was
29.1% in 2021 and 31.2% in 2020. The improvement is primarily attributable to
higher
                                       42
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net premiums earned outpacing compensation expense growth and lower travel and
entertainment expenses due to the global pandemic. However, to the extent our
net premiums earned decrease or travel and entertainment expenses increase, due
to the impact of the COVID-19 pandemic or otherwise, our expense ratio would be
expected to increase.

Service expenses, which represent the costs associated with the fee-based businesses, were $43 million in both 2021 and 2020.


  Net foreign currency gains result from transactions denominated in a currency
other than a company's operating functional currency. Net foreign currency gains
were $7 million in 2021 compared to $29 million in 2020. The reduction in gains
is primarily related to less weakening of the Argentine Peso compared to the USD
in 2021 versus 2020 and strengthening of the GBP compared to the USD in 2021
versus weakening in 2020.
Debt extinguishment costs of $12 million related to the redemption of $400
million of subordinated debentures in March and June 2021 that were due in 2056.
  Other costs and expenses represent general and administrative expenses of the
parent company and other expenses not allocated to business segments, including
the cost of certain long-term incentive plans and new business ventures. Other
costs and expenses increased to $105 million in 2021 from $94 million in 2020,
primarily due to the increase in non-recurring performance-based compensation
costs in 2021.
  Expenses from Non-Insurance Businesses. Expenses from non-insurance businesses
represent costs associated with businesses engaged in the distribution of
promotional merchandise, world-wide textile solutions and aviation-related
businesses that include (i) cost of goods sold related to aircraft and products
sold and services provided, and (ii) general and administrative expenses.
Expenses from non-insurance businesses were $193 million in 2021 compared to
$171 million in 2020. The increase mainly relates to the business recovery from
COVID-19 on aviation-related and textile businesses.
Interest Expense. Interest expense was $75 million in both 2021 and 2020. In May
2020, the Company issued $300 million aggregate principal amount of 4.00% senior
notes due 2050. In September 2020, the Company issued an additional $170 million
aggregate principal amount of 4.00% senior notes due 2050 and $250 million
aggregate principal amount of 4.25% subordinated debentures due 2060 and repaid
$300 million aggregate principal amount of 5.375% senior notes at maturity. In
October 2020, the Company redeemed $350 million aggregate principal amount of
5.625% subordinated debentures due 2053. In February 2021, the Company issued
$300 million aggregate principal amount of 4.125% subordinated debenture due
2061. In March 2021, the Company issued $400 million aggregate principal amount
of 3.55% senior notes due 2052 and redeemed its $110 million aggregate principal
amount of 5.90% subordinated debentures due 2056. On June 1, 2021, the Company
redeemed the $290 million aggregate principal amount of its 5.75% subordinated
debentures due 2056. These redemptions resulted in debt extinguishment costs of
$12 million during six months ended June 30, 2021. Additionally in second
quarter of 2021, the Company sold a real estate asset which resulted in a $102
million reduction of the Company's debt that was supporting the property.
The redemption of debentures and issuance of additional debentures in 2021, as
described below in "Liquidity and Capital Resources -- Debt," are expected to
decrease interest expense in 2021 and forward.
Income Taxes. The effective income tax rate was 21.2% in 2021 and 31.2% in 2020.
For the six months ended June 30, 2021, the effective income tax rate differs
from the federal income tax rate of 21% principally because of state and foreign
income taxes, which was partially offset by tax-exempt investment income and tax
benefits related to equity-based compensation. The increased effective income
tax rate for the six months ended June 30, 2020 was principally because foreign
jurisdictions were limited on the utilization of losses at different tax rates.
  The Company has not provided U.S. deferred income taxes on the undistributed
earnings of approximately $119 million of its non-U.S. subsidiaries since these
earnings are intended to be permanently reinvested in the non-U.S. subsidiaries.
In the future, if such earnings were distributed the Company projects that the
incremental tax, if any, will be immaterial.






                                       43

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Results of Operations for the Three Months Ended June 30, 2021 and 2020 Business Segment Results



Following is a summary of gross and net premiums written, net premiums earned,
loss ratios (losses and loss expenses incurred expressed as a percentage of net
premiums earned), expense ratios (underwriting expenses expressed as a
percentage of net premiums earned) and GAAP combined ratios (sum of loss ratio
and expense ratio) for each of our business segments for the three months ended
June 30, 2021 and 2020. The GAAP combined ratio represents a measure of
underwriting profitability, excluding investment income. A GAAP combined ratio
in excess of 100 indicates an underwriting loss; a number below 100 indicates an
underwriting profit.
            ($ in thousands)                       2021              2020
            Insurance:
            Gross premiums written            $ 2,421,846       $ 1,917,702
            Net premiums written                1,994,212         1,543,157
            Net premiums earned                 1,727,202         1,465,044
            Loss ratio                               61.4  %           67.0  %
            Expense ratio                            28.5  %           30.7  %
            GAAP combined ratio                      89.9  %           97.7  %
            Reinsurance & Monoline Excess:
            Gross premiums written            $   239,390       $   214,544
            Net premiums written                  217,969           196,661
            Net premiums earned                   244,422           211,871
            Loss ratio                               58.2  %           72.2  %
            Expense ratio                            30.4  %           32.9  %
            GAAP combined ratio                      88.6  %          105.1  %
            Consolidated:
            Gross premiums written            $ 2,661,236       $ 2,132,246
            Net premiums written                2,212,181         1,739,818
            Net premiums earned                 1,971,624         1,676,915
            Loss ratio                               61.0  %           67.7  %
            Expense ratio                            28.7  %           31.0  %
            GAAP combined ratio                      89.7  %           98.7  %


  Net Income to Common Stockholders. The following table presents the Company's
net income to common stockholders and net income per diluted share for the three
months ended June 30, 2021 and 2020:
            (In thousands, except per share data)        2021           2020
            Net income to common stockholders         $ 237,238      $ 71,260
            Weighted average diluted shares             187,106       187,862
            Net income per diluted share              $    1.27      $   0.38


  The Company reported net income to common stockholders of $237 million in 2021
compared to $71 million in 2020. The $166 million increase in net income was
primarily due to an after-tax increase in underwriting income of $142 million
mainly due to the growth in premium rates and exposure as well as reductions in
loss ratio partly due to lower catastrophe losses and in expense ratio driven by
net earned premium growth outpacing expense growth, an after-tax increase in net
investment income of $66 million primarily due to investment funds, a reduction
of $12 million in tax expense due to a change in the effective tax rate, an
after-tax increase in profits from non-insurance businesses of $2 million, an
after-tax increase in profit from insurance service businesses of $1 million and
a less than $1 million after-tax increase in other income, partially offset by
an after-tax reduction in net investment gains of $42 million primarily due to
change in market value on equity securities partially offset by the sale of a
real estate asset, an after-tax increase in corporate expenses of $10 million
which includes an after-tax debt extinguishment expense of $6 million on debt
redeemed in the second quarter of 2021 and an after-tax decrease in foreign
currency gains of $5 million. The number of weighted average diluted shares
decreased by less than one million for 2021 compared to 2020 mainly reflecting
shares repurchased in 2020 and 2021.

                                       44
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  Premiums. Gross premiums written were $2,661 million in 2021, an increase of
25% from $2,132 million in 2020. The increase was due to a $504 million increase
in the Insurance segment and a $25 million increase in the Reinsurance &
Monoline Excess segment. Approximately 81% of premiums expiring in 2021 were
renewed, and 78% of premiums expiring in 2020 were renewed.

Average renewal premium rates for insurance and facultative reinsurance increased 8.5% in 2021 when adjusted for changes in exposures, and increased 9.7% excluding workers' compensation.


  A summary of gross premiums written in 2021 compared with 2020 by line of
business within each business segment follows:
•Insurance - gross premiums increased 26% to $2,422 million in 2021 from $1,918
million in 2020. Gross premiums increased $166 million (25%) for other
liability, $142 million (50%) for professional liability, $76 million (34%) for
commercial auto, $76 million (16%) for short-tail lines and $44 million (16%)
for workers' compensation lines.
•Reinsurance & Monoline Excess - gross premiums increased 12% to $239 million in
2021 from $215 million in 2020. Gross premiums increased $24 million (17%) for
casualty reinsurance and $5 million (25%) for monoline excess, partially offset
by a $5 million (9%) reduction for property reinsurance.

Net premiums written were $2,212 million in 2021, an increase of 27% from $1,740 million in 2020. Ceded reinsurance premiums as a percentage of gross written premiums were 17% in 2021 and 18% in 2020.


  Premiums earned increased 18% to $1,972 million in 2021 from $1,677 million in
2020. Insurance premiums (including the impact of rate changes) are generally
earned evenly over the policy term, and accordingly, recent rate increases will
be earned over the upcoming quarters. Premiums earned in 2021 are related to
business written during both 2021 and 2020. Audit premiums were $52 million in
2021 compared with $41 million in 2020.

Net Investment Income. Following is a summary of net investment income for the three months ended June 30, 2021 and 2020:


                                                                                                   Average Annualized
                                                          Amount                                          Yield
($ in thousands)                                  2021               2020                      2021                        2020
Fixed maturity securities, including cash and
cash equivalents and loans receivable         $  96,996          $ 105,843                              2.2  %                 2.7  %
Investment funds                                 61,311            (57,552)                            17.9                  (19.4)
Arbitrage trading account                         3,914             31,304                              2.5                   20.6
Equity securities                                 7,212              2,726                              5.2                    3.1
Real estate                                         872              5,045                              0.2                    1.0
Gross investment income                         170,305             87,366                              3.2                    1.8
Investment expenses                              (2,118)            (1,935)                               -                      -
Total                                         $ 168,187          $  85,431                              3.1  %                 1.7  %


  Net investment income increased 97% to $168 million in 2021 from $85 million
in 2020 due primarily to a $119 million increase in income from investment funds
primarily from financial services and energy funds and a $4 million increase
from equity securities, partially offset by a $27 million decrease from the
arbitrage trading account, a $9 million decrease in income from fixed maturity
securities mainly driven by lower investment yields and a $4 million decrease in
real estate. The Company shortened the duration of its fixed maturity security
portfolio, thereby reducing the potential impact of mark-to-market on the
portfolio and positioning the Company to react quickly to changes in the current
interest rate environment. Average invested assets, at cost (including cash and
cash equivalents), were $21.9 billion in 2021 and $19.6 billion in 2020.
  Insurance Service Fees. The Company earns fees from an insurance distribution
business, a third-party administrator and as a servicing carrier of workers'
compensation assigned risk plans for certain states. Insurance service fees were
$22 million in 2021 and $20 million in 2020, an increase mainly due to the
business recovery from the pandemic.
  Net Realized and Unrealized Gains (Losses) on Investments. The Company buys
and sells securities and other investment assets on a regular basis in order to
maximize its total return on investments. Decisions to sell securities and other
investment assets are based on management's view of the underlying fundamentals
of specific investments as well as management's expectations regarding interest
rates, credit spreads, currency values and general economic conditions. Net
realized and unrealized gains on investments were $20 million in 2021 compared
with net gains of $62 million in 2020. The
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gains of $20 million in 2021 reflect net realized gains on investments of $39
million (primarily due to the sale of certain real estate assets) partially
offset by an increase in unrealized losses on equity securities of $19 million.
In 2020, the gains of $62 million reflected net realized losses on investment
sales of $261 thousand and an increase in unrealized gains on equity securities
of $62 million.
Change in Allowance for Expected Credit Losses on Investments. Based on credit
factors, the allowance for expected credit losses is increased or decreased
depending on the percentage of unrealized loss relative to amortized cost by
security, changes in rating of the security by a rating agency, and adverse
conditions specifically related to the security, among other factors. For the
three months ended June 30, 2021, the pre-tax change in allowance for expected
credit losses on investments decreased by $4 million ($3 million after-tax),
which is reflected in net investment gains (losses), primarily related to the
disposition of loans which were previously impaired. For the three months ended
June 30, 2020, the pre-tax change in allowance for expected credit losses on
investments decreased by $16 million ($13 million after-tax), which is reflected
in net investment gains (losses), primarily related to market disruptions as a
result of COVID-19.
Revenues from Non-Insurance Businesses. Revenues from non-insurance businesses
were derived from businesses engaged in the distribution of promotional
merchandise, world-wide textile solutions and aviation-related businesses that
provide services to aviation markets, including (i) the distribution,
manufacturing, repair and overhaul of aircraft parts and components, (ii) the
sale of new and used aircraft, and (iii) avionics, fuel, maintenance, storage
and charter services. Revenues from non-insurance businesses were $109 million
in 2021 and $76 million in 2020. The increase mainly relates to the business
recovery from COVID-19 on aviation-related and textile businesses.
  Losses and Loss Expenses. Losses and loss expenses increased to $1,203 million
in 2021 from $1,135 million in 2020. The consolidated loss ratio was 61.0% in
2021 and 67.7% in 2020. Catastrophe losses, net of reinsurance recoveries, were
$44 million (including current accident year losses of approximately $25 million
related to COVID-19) in 2021 and $146 million (including losses of approximately
$86 million related to COVID-19) in 2020. Favorable prior year reserve
development (net of premium offsets) was $400 thousand in 2021 and $3 million in
2020. The loss ratio excluding catastrophe losses and prior year reserve
development was 58.8% in 2021 and 59.2% in 2020.
  A summary of loss ratios in 2021 compared with 2020 by business segment
follows:
•Insurance - The loss ratio was 61.4% in 2021 and 67.0% in 2020. Catastrophe
losses were $37 million in 2021 compared with $114 million in 2020. The Company
reflected a best estimate (net of reinsurance) based upon available information
for current accident year COVID-19-related losses of approximately $23 million,
primarily related to contingency and event cancellation coverage. Favorable
prior year reserve development was $6 million in 2021 and $5 million in 2020.
The loss ratio excluding catastrophe losses and prior year reserve development
increased 0.3 points to 59.8% in 2021 from 59.5% in 2020, primarily due to
higher than average non-weather related property losses.
•Reinsurance & Monoline Excess - The loss ratio was 58.2% in 2021 and 72.2% in
2020. Catastrophe losses were $7 million in 2021 compared with $32 million in
2020. The Company reflected a best estimate (net of reinsurance) based upon
available information for current accident year COVID-19-related losses of
approximately $2 million, primarily related to excess workers' compensation and
short-tail lines. Adverse prior year reserve development was $6 million in 2021
and $2 million in 2020. The loss ratio excluding catastrophe losses and prior
year reserve development decreased 3.5 points to 52.9% in 2021 from 56.4% in
2020.
Other Operating Costs and Expenses. Following is a summary of other operating
costs and expenses:
     ($ in thousands)                                         2021         

2020

Policy acquisition and insurance operating expenses $ 565,733 $ 519,234


     Insurance service expenses                               21,789       

20,423


     Net foreign currency losses                              (1,125)      

(7,382)


     Debt extinguishment costs                                 7,903       

-


     Other costs and expenses                                 53,405       

 48,565
     Total                                                 $ 647,705      $ 580,840


  Policy acquisition and insurance operating expenses are comprised of
commissions paid to agents and brokers, premium taxes and other assessments and
internal underwriting costs. Policy acquisition and insurance operating expenses
increased 9% and net premiums earned increased 18% from 2020. The expense ratio
(underwriting expenses expressed as a percentage of premiums earned) was 28.7%
in 2021 and 31.0% in 2020. The improvement is primarily attributable to higher
net premiums earned outpacing compensation expense growth. However, to the
extent our net premiums earned decrease or travel
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and entertainment expenses increase, due to the impact of the COVID-19 pandemic or otherwise, our expense ratio would be expected to increase.

Service expenses, which represent the costs associated with the fee-based businesses, were $22 million in 2021 and $20 million in 2020.


  Net foreign currency gains result from transactions denominated in a currency
other than a company's operating functional currency. Net foreign currency gains
were $1 million in 2021 compared to $7 million in 2020.
Debt extinguishment costs of $8 million in 2021 related to the redemption of a
$290 million subordinated debenture in June 2021 that was due in 2056.
  Other costs and expenses represent general and administrative expenses of the
parent company and other expenses not allocated to business segments, including
the cost of certain long-term incentive plans and new business ventures. Other
costs and expenses increased to $53 million in 2021 from $49 million in 2020,
primarily due to the increase in non-recurring performance-based compensation
costs in 2021.
  Expenses from Non-Insurance Businesses. Expenses from non-insurance businesses
represent costs associated with businesses engaged in the distribution of
promotional merchandise, world-wide textile solutions and aviation-related
businesses that include (i) cost of goods sold related to aircraft and products
sold and services provided, and (ii) general and administrative expenses.
Expenses from non-insurance businesses were $107 million in 2021 compared to $76
million in 2020. The increase mainly relates to the business recovery from
COVID-19 on aviation-related and textile businesses.
Interest Expense. Interest expense was $38 million in both 2021 and 2020. In May
2020, the Company issued $300 million aggregate principal amount of 4.00% senior
notes due 2050. In September 2020, the Company issued an additional $170 million
aggregate principal amount of 4.00% senior notes due 2050 and $250 million
aggregate principal amount of 4.25% subordinated debentures due 2060 and repaid
$300 million aggregate principal amount of 5.375% senior notes at maturity. In
October 2020, the Company redeemed $350 million aggregate principal amount of
5.625% subordinated debentures due 2053. In February 2021, the Company issued
$300 million aggregate principal amount of 4.125% subordinated debenture due
2061. In March 2021, the Company issued $400 million aggregate principal amount
of 3.55% senior notes due 2052 and redeemed its $110 million aggregate principal
amount of 5.90% subordinated debentures due 2056. On June 1, 2021, the Company
redeemed the $290 million aggregate principal amount of its 5.75% subordinated
debentures due 2056. These redemptions resulted in debt extinguishment costs of
$12 million in 2021, including $8 million in the second quarter of 2021.
Additionally in second quarter of 2021, the Company sold a real estate asset
which resulted in a $102 million reduction of the Company's debt that was
supporting the property.
The redemption of debentures and issuance of additional debentures in 2021, as
described below in "Liquidity and Capital Resources -- Debt," are expected to
decrease interest expense in 2021 and forward.
Income Taxes. The effective income tax rate was 20.8% in 2021 and 32.0% in 2020.
The effective income tax rate
differs from the federal income tax rate of 21% principally because of state and
foreign income taxes, which was partially offset by tax-exempt investment income
and tax benefits related to equity-based compensation. The increased effective
income tax rate for the three months ended June 30, 2021 was principally because
foreign jurisdictions were limited on the utilization of losses at different tax
rates.
  The Company has not provided U.S. deferred income taxes on the undistributed
earnings of approximately $119 million of its non-U.S. subsidiaries since these
earnings are intended to be permanently reinvested in the non-U.S. subsidiaries.
In the future, if such earnings were distributed the Company projects that the
incremental tax, if any, will be immaterial.


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Investments


  As part of its investment strategy, the Company establishes a level of cash
and highly liquid short-term and intermediate-term securities that, combined
with expected cash flow, it believes is adequate to meet its payment
obligations. Due to the low fixed maturity investment returns, the Company
invests in equity securities, merger arbitrage securities, investment funds,
private equity, loans and real estate related assets. The Company's investments
in investment funds and its other alternative investments have experienced, and
the Company expects to continue to experience, greater fluctuations in
investment income.
  The Company also attempts to maintain an appropriate relationship between the
average duration of the investment portfolio and the approximate duration of its
liabilities (i.e., policy claims and debt obligations). The average duration of
the fixed maturity portfolio, including cash and cash equivalents, was 2.4 years
at both June 30, 2021 and December 31, 2020. The Company's fixed maturity
investment portfolio and investment-related assets as of June 30, 2021 were as
follows:
                                                         Carrying        Percent
($ in thousands)                                          Value          of Total
Fixed maturity securities:
U.S. government and government agencies               $    502,625          2.3  %
State and municipal:
Special revenue                                          2,176,388          9.8
Local general obligation                                   452,710          2.0
State general obligation                                   451,588          2.0
Pre-refunded (1)                                           248,137          1.1
Corporate backed                                           165,190          0.8
Total state and municipal                                3,494,013         15.7
Mortgage-backed:
Agency                                                     661,323          3.0
Commercial                                                 143,586          0.6
Residential-Prime                                          117,488          0.5
Residential-Alt A                                            7,029            -
Total mortgage-backed                                      929,426          4.1
Asset-backed                                             4,317,863         19.4
Corporate:
Industrial                                               3,106,003         13.9
Financial                                                1,633,318          7.3
Utilities                                                  423,848          1.9
Other                                                      177,494          0.8
Total corporate                                          5,340,663         23.9

Foreign government and foreign government agencies 1,068,918 4.8 Total fixed maturity securities

                         15,653,508         70.2
Equity securities:
Common stocks                                              449,500          2.0
Preferred stocks                                           193,493          0.9
Total equity securities                                    642,993          2.9
Cash and cash equivalents (2)                            2,088,319          9.4
Real estate                                              1,811,263          8.1
Investment funds                                         1,368,661          6.1
Arbitrage trading account                                  634,276          2.8
Loans receivable                                           116,009          0.5
Total investments                                     $ 22,315,029        100.0  %


____________________
(1) Pre-refunded securities are securities for which an escrow account has been
established to fund the remaining payments of principal and interest through
maturity. Such escrow accounts are funded almost exclusively with U.S. Treasury
and U.S. government agency securities.
(2) Cash and cash equivalents includes trading accounts receivable from brokers
and clearing organizations, trading account securities sold but not yet
purchased and unsettled purchases.


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Fixed Maturity Securities. The Company's investment policy with respect to fixed
maturity securities is generally to purchase instruments with the expectation of
holding them to their maturity. However, management of the available for sale
portfolio is considered necessary to maintain an approximate matching of assets
and liabilities as well as to adjust the portfolio as a result of changes in
financial market conditions and tax considerations.
The Company's philosophy related to holding or selling fixed maturity securities
is based on its objective of maximizing total return. The key factors that
management considers in its investment decisions as to whether to hold or sell
fixed maturity securities are its view of the underlying fundamentals of
specific securities as well as its expectations regarding interest rates, credit
spreads and currency values. In a period in which management expects interest
rates to rise, the Company may sell longer duration securities in order to
mitigate the impact of an interest rate rise on the fair value of the portfolio.
Similarly, in a period in which management expects credit spreads to widen, the
Company may sell lower quality securities, and in a period in which management
expects certain foreign currencies to decline in value, the Company may sell
securities denominated in those foreign currencies. The sale of fixed maturity
securities in order to achieve the objective of maximizing total return may
result in realized gains; however, there is no reason to expect these gains to
continue in future periods.
Equity Securities. Equity securities primarily represent investments in common
and preferred stocks in companies with potential growth opportunities in
different sectors, mainly in the financial institutions and energy sectors.
Investment Funds. At June 30, 2021, the carrying value of investment funds was
$1,369 million, including investments in financial services funds of $452
million, transportation funds of $271 million, real estate funds of $263
million, other funds of $234 million and energy funds of $149 million.
Investment funds are generally reported on a one-quarter lag.
Real Estate. Real estate is directly owned property held for investment. At
June 30, 2021, real estate properties in operation included a long-term ground
lease in Washington D.C., an office complex in New York City, an office building
in London, and the completed portion of a mixed-use project in Washington D.C.
In addition, part of the previously mentioned mixed-use project in Washington
D.C. is under development. The Company expects to fund further development costs
for the project with a combination of its own funds and external financing.
Arbitrage Trading Account. The arbitrage trading account is comprised of direct
investments in arbitrage securities. Merger arbitrage is the business of
investing in the securities of publicly held companies that are the targets in
announced tender offers and mergers.
Loans Receivable. Loans receivable, which are carried at amortized cost (net of
allowance for expected credit losses), had an amortized cost of $116 million and
an aggregate fair value of $118 million at June 30, 2021. The amortized cost of
loans receivable is net of an allowance for expected credit losses of $2 million
as of June 30, 2021. Loans receivable include real estate loans of $90 million
that are secured by commercial and residential real estate located primarily in
New York. Real estate loans generally earn interest at fixed or stepped interest
rates and have maturities through 2026. Loans receivable include commercial
loans of $26 million that are secured by business assets and have fixed interest
rates with varying maturities not exceeding 10 years.
Market Risk. The fair value of the Company's investments is subject to risks of
fluctuations in credit quality and interest rates. The Company uses various
models and stress test scenarios to monitor and manage interest rate risk. The
Company attempts to manage its interest rate risk by maintaining an appropriate
relationship between the effective duration of the investment portfolio and the
approximate duration of its liabilities (i.e., policy claims and debt
obligations). The effective duration for the fixed maturity portfolio (including
cash and cash equivalents) was 2.4 years at both June 30, 2021 and December 31,
2020.
In addition, the fair value of the Company's international investments is
subject to currency risk. The Company attempts to manage its currency risk by
matching its foreign currency assets and liabilities where considered
appropriate.

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Liquidity and Capital Resources

Cash Flow. Cash flow provided from operating activities increased to $696 million in the first six months of 2021 from $580 million in the first six months of 2020, primarily due to an increase in premium receipts, net of reinsurance and commissions settled, partially offset by an increase in tax payments.


  The Company's insurance subsidiaries' principal sources of cash are premiums,
investment income, service fees and proceeds from sales and maturities of
portfolio investments. The principal uses of cash are payments for claims,
taxes, operating expenses and dividends. The Company expects its insurance
subsidiaries to fund the payment of losses with cash received from premiums,
investment income and fees. The Company generally targets an average duration
for its investment portfolio that is within 1.5 years of the average duration of
its liabilities so that portions of its investment portfolio mature throughout
the claim cycle and are available for the payment of claims if necessary. In the
event operating cash flow and proceeds from maturities and prepayments of fixed
income securities are not sufficient to fund claim payments and other cash
requirements, the remainder of the Company's cash and investments is available
to pay claims and other obligations as they become due. The Company's investment
portfolio is highly liquid, with approximately 79% invested in cash, cash
equivalents and marketable fixed maturity securities as of June 30, 2021. If the
sale of fixed maturity securities were to become necessary, a realized gain or
loss equal to the difference between the cost and sales price of securities sold
would be recognized.
  Debt. At June 30, 2021, the Company had senior notes, subordinated debentures
and other debt outstanding with a carrying value of $2,919 million and a face
amount of $2,937 million, including $300 million aggregate principal amount of
its 4.125% subordinated debentures due 2061 issued in February 2021 as well as
$400 million aggregate principal amount of its 3.55% senior notes due 2052
issued in March 2021. The Company redeemed its $110 million aggregate principal
amount of 5.90% subordinated debentures due 2056 on March 1, 2021 and its $290
million aggregate principal amount of 5.75% subordinated debentures due 2056 on
June 1, 2021. Additionally in the second quarter of 2021, the Company sold a
real estate asset which resulted in a $102 million reduction of the Company's
debt that was supporting the property. The maturities of the outstanding debt
are $3 million in 2021, $426 million in 2022, $3 million in 2025, $250 million
in 2037, $350 million in 2044, $470 million in 2050, $400 million in 2052, $185
million in 2058, $300 million in 2059, $250 million in 2060 and $300 million in
2061.
  Equity. At June 30, 2021, total common stockholders' equity was $6.6 billion,
common shares outstanding were 177,413,970 and stockholders' equity per
outstanding share was $37.08. During the six months ended June 30, 2021, the
Company repurchased 465,063 shares of its common stock for $30 million. In the
second quarter of 2021, the Board declared a regular quarterly cash dividend of
$0.13 per share and a special cash dividend of $0.50 per share. The number of
common shares outstanding excludes shares held in a grantor trust established by
the Company for delivery upon settlement of vested but mandatorily deferred
RSUs.
  Total Capital. Total capitalization (equity, debt and subordinated debentures)
was $9.5 billion at June 30, 2021. The percentage of the Company's capital
attributable to senior notes, subordinated debentures and other debt was 31% at
June 30, 2021 and 30% at December 31, 2020.

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