1. Institute of Industrial Economics, Jinan University, Guangzhou, P.R. China
2. School of Applied Economics, Jiangxi university of finance and economics, Nanchang, P.R. China
3. College of Political Science and Law, Jiangxi Normal University, Nanchang, P.R. China
4. Faculty of Business and Economics, University of Malaya, Kuala Lumpur, Malaysia