1. School of Economics and Management, Beihang University, Beijing 100191, China;
2. Department of Operations and Decision Technologies, Kelley School of Business, Indiana University, Bloomington, Indiana 47405;
3. Department of Information Systems and Operations Management, Michael G. Foster School of Business, University of Washington, Seattle, Washington 98195;
4. School of Management, Harbin Institute of Technology, Harbin 150080, China;
5. Department of Information & Operations Management, Mays Business School, Texas A&M University, College Station, Texas 77843