b. 1955
John Geanakoplos is an American economist and mathematician at Yale University, known for his contributions to general equilibrium theory, game theory, and financial economics. He developed the Leverage Cycle theory explaining how collateral requirements drive asset price bubbles and crashes, and has written on epistemic game theory and the interpretation of sequential rationality.
Developed the Leverage Cycle theory of financial crises
Contributed to general equilibrium theory with incomplete markets
Advanced epistemic foundations of game theory and common knowledge
James Tobin Professor of Economics at Yale University
Director of the Cowles Foundation for Research in Economics