Eric Maskin
He has studied a wide range of subjects in economic theory, such as game theory, the economics of incentives, and contract theory. He is particularly well known for his work on mechanism design/implementation theory and dynamic games.  His current research projects include comparing different rules for elections, the causes of inequality and studying coalition formation. He is a Fellow of the American Academy of Arts and Sciences, Econometric Society, and the European Economic Association, and a Corresponding Fellow of the British Academy. He was president of the Econometric Society in 2003.