Nguyen Phuc Canh University of Economics Ho Chi Minh City   59C Nguyen Dinh Chieu District 3 Ho Chi Minh, Ho Chi Minh City 700000 Vietnam   canhnguyen@ueh.edu.vn             JEL Areas: D7 : Analysis of Collective Decision-Making: General L2 : Firm Objectives, Organization, and Behavior: General