Jerry Green is the John Leverett Professor in the University and the David A. Wells Professor of Political Economy in the Department of Economics.
His current research is focused on principles of equity in collective decision making, the use of irrational choice data to evaluate economic well-being, and the revision of beliefs in the presence of logically inconsistent information.
In the 1970s Professor Green developed the theory of rational expectations equilibrium, focusing on the externalities due to observations of events that propagate through the system when agents extract information from prices. He showed that such equilibria are likely not to exist and, when they do exist, may be unreasonably sensitive to errors in the data.
Later in the 1970s and continuing through the 1990s, working with Jean-Jacques Laffont, he explored the properties of dominant strategy mechanisms that implement efficient collective outcomes. They characterized the limitations of these mechanisms and examined how they might be improved under Bayesian incentive compatibility or by taking a sample of the population whose responses determine a decision affecting the entire population. He applied the theory of incentives to employment contracts and to general bilateral contracts with uncertainty on both sides of the market.
Professor Green pioneered the study of how changes in the quality of information affect economic outcomes in general equilibrium theory with incomplete futures markets and in two-person games, providing one of the earliest examples of what are now called “cheap-talk games”.
Outside of pure economic theory, Professor Green wrote on many topics in applied microeconomics, primarily on taxation, private pensions and the economics of intellectual property.
Throughout his career he has been devoted to the teaching of microeconomic theory at the graduate level. His book, coauthored with Andreu Mas-Colell and Michael Whinston, Microeconomic Theory, is the leading textbook used in first-year Ph.D. courses around the world. He was awarded the J.K. Galbraith Prize for graduate teaching.
Professor Green joined the Harvard Economics Department after receiving his Ph.D. from the University of Rochester in 1970. He chaired the Economics Department from 1984 to 1987 and served as Provost of the University from 1992 to 1994.
He is a Fellow of the Econometric Society and has served on its Council and on the Editorial Board of Econometrica. He is a Fellow of the Society for the Advancement of Economic Theory, a Fellow of the American Academy of Arts and Sciences, an Erskine Fellow of the University of Canterbury (New Zealand), an Overseas Fellow of Churchill College (Cambridge University). He was a Guggenheim Fellow and a National Science Foundation Post-doctoral Fellow.
At Harvard, Professor Green is a Senior Fellow of the Harvard Society of Fellows, a Syndic of the Harvard University Press, an Honorary Associate of Lowell House, and chair of the Faculty Committee on Athletic Sports.
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