Franklin M. Fisher is Jane Berkowitz Carlton and Dennis William Carlton Professor of Microeconomics, Emeritus, at MIT. He was the lead expert economist for the defense, assisted by John J. McGowan and Joen E. Greenwood of Charles River Associates, in the major antitrust case U.S. v. IBM. His collected essays have been published in Econometrics: Essays in Theory and Applications and in Industrial Organization, Economics and the Law.