Professor at Graduate School of Economics, Nagoya since 2019. His Ph.D. from MIT. He was on the faculty at The University of British Columbia, Hitotsubashi University and others. He received Ishikawa Prize in 2007, and was given Medal with Purple Ribbon in 2014. For his books, he receives Nikkei Prize in 2002, Economist Prize in 2008, The Zengin Foundation Award in 2010, and Ishibashi Tanzan Prize in 2012.