1. School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong , 7 Sassoon Road, Pok Fu Lam, Hong Kong SAR, Peoples’ Republic of China
2. Senior Fellow, Center for Global Development , Washington, DC 20036, The United States
3. Assistant Professor, Department of Politics and Public Administration, Faculty of Social Sciences, The University of Hong Kong , Hong Kong SAR, Peoples’ Republic of China