John O. Ledyard is the Alan and Lenabelle Davis Professor of Economics and Social Sciences at the California Institute of Technology, where he has been teaching since 1986. Previous positions include Northwestern University, where he was the Sydney G. Harris Professor of Social Science, and Carnegie Mellon University. He holds an AB degree in Mathematics from Wabash College and MS and PhD, both in economics, from Purdue University. At Caltech, he was a Sherman Fairchild Distinguished Scholar (1977-78) and later was the Chairman of the Division of the Humanities and Social Sciences (1992-2002).
Individual Evolutionary Learning and Zero-Intelligence in the Continuous Double Auction