He was also a Visiting Scholar at other Institutes, such as the Australian National University, MSRI Berkeley, the Institute for Advanced Studies at the Hebrew University, and the Institute for Advanced Study at Princeton.
He was a member of the MSRI and visiting scholar at the University of Cambridge and the University of Nice and a visiting professor at the Columbia University and Harvard University.
with Jeremy J. Gray (eds.): Episodes in the History of Modern Algebra (1800–1950), AMS/LMS History of Mathematics 32, Providence/London 2007 (Conference at MSRI 2003)
He is the co-winner of the Frisch Medal with Kenneth Singleton in 1984, was awarded the Erwin Plein Nemmers Prize in Economics in 2006, and the CME Group-MSRI Prize In Innovative Quantitative Applications in 2008.
He has been a visiting professor at the University of Paris VII, and at the Mathematical Science Research Institute (MSRI) at the University of California, Berkeley.