The founder quit after the board moved to investigate whistleblower allegations, which he denies, including use of luxury property and travel.

The board, which includes ex-U.S. Vice President Al Gore and Jordan's Queen Rania, took note that Schwab created the "leading global platform" for "dialogue and progress" during his 55 years of "relentless leadership at the helm of the Forum."

GENEVA — Klaus Schwab, the founder of the World Economic Forum, best known for hosting an annual meeting of political, business and other elites in the Swiss Alpine town of Davos, is retiring as chairman more than a half-century after creating the Geneva-based think tank, the forum said Monday.