1. Department of Economics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;
2. Institute of Economics, Academia Sinica, Taipei, Taiwan
3. Department of Finance, National Central University, Taoyuan, Taiwan
4. Department of Economics, National Chengchi University, Taipei, Taiwan
5. Department of Economics and Business, Central European University, Budapest, Hungary
6. School of Economics, Singapore Management University, Singapore