School of Economics 
University of Queensland

After almost two decades in the Department of Economics of the University of Minnesota, and a brief appointment at the University of Sydney, I'm now a professor at the School of Economics of the University of Queensland. My research specializations are mathematical economics and game theory. In recent years I have been interested in computational issues arising out of the problem of getting a computer to find all Nash equilibria of a finite game, which has led me to learn about literature in algebraic geometry related to the solution of systems of polynomial equations. Along with Richard McKelvey, I have been able to apply the ideas there to characterize both the largest number of totally mixed Nash equilibria a "generic" normal form game might have, and the average number.
During the last few years I have been working with Richard McKelvey, Ted Turocy, and others, on Gambit, which is a free software package for dealing with finite games in normal and extensive form. It consists of two applications:
Random stumbling around has led me into a variety of other projects, and you can see by checking out recent papers. One exciting development is a very simple proof of Kakutani's fixed point theorem that Rabee Tourky and I came up with. For those who like "Book" proofs, let me also recommend the note on the ErdosSos conjecture. (You won't learn any economics, but you'll be able to read it even if you don't know much about graph theory.)
Correspondence with Andy McLennan can be sent via email to
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Last updated on January 10, 2015.