1. Working the markets: Purchaser/provider separation in English health care;Harrison;International Journal of Health Services,1991
2. Emerging trends in the Swedish health system;Saltman;International Journal of Health Services,1991
3. Reforming Health Services; Reflections On International Experience;Ham,1992
4. Setting an example in New Zealand;Davies;The Health Service Journal,1989
5. Markets and Hierarchies;Williamson,1975