By Robert Shiller

Lydia Lopokova, wife of the economist John Maynard Keynes, was a famous ballerina. She was also a Russian émigré. Thus Keynes knew from the experience of his in-laws the horrors of living in the worst of socialist economies. But he also knew first-hand the great difficulties that come from unregulated, unfettered capitalism. He lived through the British depression of the 1920s and 1930s. Thus Keynes was inspired to find a middle way for modern economies.