1. University of Oklahoma, Price College of Business, Norman, Oklahoma, United States, ;
2. Indiana University, Bloomington, Indiana, United States;
3. Tulane University, A. B. Freeman School of Business, 7 McAlister Drive, New Orleans, Louisiana, United States, 70118-5665;
4. Human Resource Management, 22 Hankou Road, School of Business, Nanjing University, Nanjing, China, 210093, ;