1. Department of Economics and Applied Statistics, Faculty of Business and Economics, Universiti Malaya, Kuala Lumpur, Malaysia
2. Prince of Songkla University, Pattani, Thailand
3. Ungku Aziz Centre for Development Studies, Universiti Malaya, Kuala Lumpur, Malaysia
4. Centre for Epidemiology and Evidence-Based Practice, Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia