"What is happening is terrible, but I don't think it's going to have a major impact on the markets we operate in and the global economy in the longer term," Williams said, adding Adecco does not have any business in Ukraine or Russia.

"Forecasts for the global economy are very robust and that's what underpins our guidance. There may be some short-term disruptions, for example in the energy sector, but fundamentally the conditions are there for good economic growth," he added after the staffing and training company reported earnings.

(Reporting by John Revill; Editing by Michael Shields)