Institution: | 1.School of Economics, Quaid-i-Azam University, Islamabad, Pakistan ;2.Department of Economics and Management, Taiyuan Institute of Technology, Taiyuan, 030008, China ;3.Department of Management Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan ;4.Health Economics Research Unit, University of Aberdeen, Aberdeen, UK ; |