1. School of Business, Macau University of Science and Technology, Taipa, Macau 999078, China
2. Business School, Nagoya University of Commerce and Business, 4-4 Sagamine, Komenoki-cho, Nisshin, Aichi, Nagoya 470-0193, Japan
3. ARC Centre of Excellence in Population Ageing Research, University of New South Wales, Sydney, NSW 2052, Australia