Yasuyuki Sawada University of Tokyo and Asian Development Bank   7-3-1 Hongo, Bunkyo-ku Faculty of Economics, University of Tokyo Tokyo, Tokyo 113-0033 Japan   sawada@e.u-tokyo.ac.jp     Biographical Sketch: BA (economics), Keio University, 1990; MA (economics), Osaka University, 1992; MA (inernational relations), University of Tokyo, 1994; MA (international development policy), Stanford University, 1996; Ph.D. (economics), Stanford University, 1999   Primary Research Focus: Development Economics, International Economics, Applied Micro-Econometrics   JEL Areas: Q1 : Agriculture: General Q5 : Environmental Economics: General