[1] Kings Coll London, Dept Global Hlth & Social Med, London, England
[2] NYU, Rory Meyers Coll Nursing, New York, NY USA
[3] Natl Univ Singapore, Lee Kuan Yew Sch Publ Policy, Singapore, Singapore
[4] Univ New South Wales, Social Policy Res Ctr, Sydney, NSW, Australia
[5] Univ Hong Kong, Dept Social Work & Social Adm, Sau Po Ctr Ageing, Hong Kong, Peoples R China
[6] Univ Georgia, Dept Hlth Policy & Management, Athens, GA 30602 USA
[7] Univ Nottingham Ningbo China, Sch Econ, Ningbo, Zhejiang, Peoples R China
[8] Yale Sch Publ Hlth, Dept Hlth Policy & Management, New Haven, CT USA
[9] Yale Univ, Dept Econ, New Haven, CT 06520 USA
[10] London Sch Econ & Polit Sci, Dept Hlth Policy, Personal Social Serv Res Unit, London, England
[11] Univ Glasgow, Adam Smith Business Sch, Glasgow, Lanark, Scotland
[12] Fudan Univ, Sch Publ Hlth, Dept Hlth Econ, Shanghai, Peoples R China