Author(s): |
Hongmei Zhang, School of Management Science and Engineering Management, Guizhou College of Finance and Economics, Guiyang, China, 550004 Mu Zhang, School of Finance, Guizhou College of Finance and Economics, Guiyang, China, 550004 Hao Liu, Cigarette Marketing Center, Guiyang of Guizhou Tobacco Company, Guiyang, China, 550002 |