Affiliation: | 1. Department of Management Science, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;2. Department of Anthropology, London School of Economics and Political Science (LSE), Houghton Street, London WC2A 2AE, UK;3. College of Business and Economics, University of Wisconsin-Whitewater, 800 West Main Street, Whitewater, WI 53190 1790, USA |