When health plans compete under adverse selection, the competitive equilibrium set of contracts is unique. However, the allocation of these contracts among health plans is undetermined. We show that three health plans suffice to sustain an equilibrium where each health plan offers a single...

This paper analyses the Irish private health insurance (PHI) market. It describes how PHI interacts with the public system, and assesses its contribution to equity, efficiency and responsiveness of the health system. The analysis identifies some of the factors affecting insurance market...

Private health insurance (PHI) is the sole source of primary health coverage for a third of the Netherlands’ population earning above a set income threshold. Social insurance (together with limited public (tax-based financing) is the main source of health coverage for the majority of the...

This paper analyses the Slovak health insurance system and the policy challenges it faces. It describes the structure of health coverage and health sector reforms being implemented by the Slovak government. It provides a preliminary assessment of the possible impact of such reforms, with a focus...

While France has a universal public health insurance system, the coverage it provides is incomplete and the vast majority the French population has private complementary health insurance. Among OECD countries, the share of health care financed by private insurance is third highest behind the US...

By influencing the size and bargaining power of private insurers, public subsidization of private health insurance may project effects beyond the subsidized population. We test for such spillovers by analyzing how increases in insurer size resulting from the implementation of Medicare Part D...

Since the inception of Medicare Part D in 2006, mergers and acquisitions (M&A) and regulatory changes have led to increased concentration and reduced plan variety in the standalone prescription drug plan (PDP) portion of the market. We examine how this industry consolidation affects Medicare...

Many public programs let individuals choose between publicly provided benefits and a subsidized private alternative. We investigate the determinants of health insurance choice in Medicare--a setting with vast geographic variation in the share of individuals selecting the public option versus...