Regulatory Redistribution in the Market for Health Insurance
研究了社区费率监管如何通过医疗补助扩张缓解逆向选择，发现医疗补助扩张显著提高了社区评级市场的私人保险覆盖率。
Community-rating regulations equalize the insurance premiums faced by the healthy and the unhealthy. Intended reductions in the unhealthy's premiums can be undone, however, if the healthy forgo coverage. The severity of this adverse selection problem hinges largely on how health care costs are distributed across market participants. Theoretically, I show that Medicaid expansions can combat adverse selection by removing high cost individuals from the relevant risk pool. Empirically, I find that private coverage rates improved significantly in community-rated markets when states expanded Medicaid's coverage of relatively unhealthy adults. The effects of these health policy instruments are fundamentally linked.