John Maynard Keynes figures the odds

It took a deep understanding of high mathematics to reshape the world’s economy.

Lots of men wearing suirts standing together behind a desk. One person signs a document
In a ceremony at the Department of State, the $4 billion British Loan Agreement was formally signed. Pictured during the signing are, left to right: Lord John Maynard Keynes, Chief of British Loan Mission; Earl of Halifax, British Ambassador to the U.S.; Secretary of State James F. Byrnes and Secretary of the Treasury Fred M. Vinson. Standing behind Byrnes is Dean Acheson, assistant secretary of State, and other members of the negotiation parties. (Photo by Hulton-Deutsch/Hulton-Deutsch Collection/Corbis via Getty Images)