1. Centre for the Health Economy, Macquarie University, Macquarie Park, Australia
2. Australian Institute of Health and Innovation, Macquarie University, Macquarie Park, Australia
3. School of Business, University of Southern Queensland, Toowoomba, Australia
4. Centre for Health Research, University of Southern Queensland, Toowoomba, Australia
5. Centre for Health Services Research, Faculty of Medicine, The University of Queensland, Australia
6. School of Accounting, Economics and Finance, University of KwaZulu-Natal, Durban, South Africa