1. Department of Accounting and Finance, School of Management Xi'an Jiaotong University Xi'an Shaanxi China
2. Department of Accounting and Finance, School of Business Nanjing University of Information Science & Technology Nanjing Jiangsu China
3. International Institute of Finance, School of Management University of Science and Technology of China Hefei Anhui China
4. Department of Accounting and Finance, College of Business University of Wisconsin‐Eau Claire Eau Claire Wisconsin USA