Affiliation: | aDepartment of Economics and Woodrow Wilson School, 316 Wallace Hall, Princeton University, Princeton NJ 08544, 609 258 7393;bDept. of Applied Economics, Guanghua School of Management, Peking University, Rm. 325, Hall 2, Guanghua School of Management, Peking University, Beijing 100871, China;cDept. of Management, China Europe International Business School, 699 Hong Feng Road, Pudong, Shanghai 201206, China |