International health care reform: what goes round, comes round. The pervasive role of ideology in the optimism of the public-private mix in the public healthcare system. Efficient purchasing in public and private healthcare systems: mission impossible? The public-private mix in the UK. UK health care reform: continuity and change. The mix of public and private payers in the American health system. Political wolves and economic sheep: the sustainability of public health insurance in Canada. Public-private mix for health in France. The public-private mix in Scandinavia. Public-private mix for health care in Germany. The public-private mix in health services: New Zealand. The role of the private sector in the Australian health care system. Common challenges in health care markets. Enduring problems in health care delivery.