| Summary: | "A disproportionate impact on health system performance Private health insurance makes a small contribution to spending on health in most countries around the world, but its effect on health system performance can be surprisingly large owing to market failures and weaknesses in public policy. Because private health insurance can have a disproportionate impact, leading to risk segmentation, inequality and inefficiency, it should be considered and monitored with care. Proponents of private health insurance fall into two camps. Some see private health insurance as attractive in its own right: in their view, a permanently mixed system of health financing will enhance efficiency and consumer choice. Others regard private health insurance as a second-best option in the context of fiscal constraints: not as desirable as public spending on health, but preferable to out-of-pocket payments. In richer countries, it is argued, encouraging the wealthy to pay more for health care or allowing public resources to focus on essential services will relieve pressure on government budgets (Chollet & Lewis, 1997). In poorer countries, private health insurance can play a transitional role, helping to boost pre-paid revenue and paving the way for public insurance institutions (Sekhri & Savedoff, 2005). A key assumption in both contexts is that private health insurance will fill gaps in publicly financed health coverage, even though economic theory indicates that gaps may be filled for some people, but not for others. Analysts who acknowledge this tension suggest that it can be addressed through regulation (Sekhri & Savedoff, 2005)"--
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