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I am a microeconomic theorist, and my research focuses on dynamic incentive problems and mechanism design. I received my Ph.D. from the University of Pennsylvania, and prior to joining Aalto (or HSE) in 2002, I worked at Northwestern University and the University of Southampton.

Many of my current research projects are in collaboration with Professor Pauli Murto. We analyze the effects of participation costs on allocational efficiency in auctions and contests. My research is theoretical, but the subject matter is close to practical problems. For example, I have participated in a project where a new auction format was designed for auctioning airwaves. I have published numerous research articles on dynamic games and mechanisms in leading economics journals including Econometrica, Journal of Political Economy, Quarterly Journal of Economics, Review of Economic Studies, Journal of the European Economic Association, and Journal of Economic Theory.

I am currently a co-editor of the Journal of Economic Theory. Until the end of 2018, I was the main editor of the Journal of European Economic Association, and I have been a managing editor at the Review of Economic Studies in 2003-2007.  In addition to these duties, I have been on the editorial boards of numerous journals over the years.

I am a fellow of Econometric Society since 2008, a fellow of the European Economic Association, and I am a member of the Finnish Academy of Arts and Sciences.