1. Research Institute of Economics and Management, Southwestern University of Finance and Economics, Chengdu, People's Republic of China
2. Salford Business School, University of Salford, Salford, UK
3. Department of Economics and Finance, Southern Illinois University Edwardsville, Edwardsville, IL, USA
4. Jiangxi School of Economics and Finance, Nanchang, People's Republic of China
5. The William Davidson Institute, University of Michigan Business School, Ann Arbor, MI, USA