31 May - Maurice Allais, born on 31 May 1911,

Maurice Allais, born on 31 May 1911, was a French physicist and economist, the 1988 winner of the *Nobel Memorial Prize* in Economic Sciences _"for his pioneering contributions to the theory of markets and efficient utilization of resources",_ for Maurice Allais contribution, along with John Hicks (Value and Capital, 1939) and Paul Samuelson (The Foundations of Economic Analysis, 1947), to neoclassical synthesis. They formalize the self-regulation of markets, that Keynes refuted, while reiterating some of his ideas.