1. Nanyang Business School, Nanyang Technological University, 639956 Singapore;
2. W. P. Carey School of Business, Arizona State University, Tempe, Arizona 85287;
3. College of Business, Korea Advanced Institute of Science and Technology, Daejeon 02455, Korea;
4. School of Economics and Management, Tsinghua University, Beijing 100084, China;
5. McIntire School of Commerce, University of Virginia, Charlottesville, Virginia 22903