In economics, he was a major figure in post-World War II neo-classical economic theory. His most significant works are his contributions to social choice theory, notably "Arrow's impossibility theorem", and his work on general equilibrium analysis. He has also provided foundational work in many other areas of economics, including endogenous growth theory and the economics of information.
Prof. Arrow was the General Director of the Jerusalem School in Economic Theory at the IIAS from 1990-2007.
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