Any Willing Provider (AWP) regulations require insurers to allow health care providers network membership, eliminating an insurer’s ability to commit to a limited network of providers. We study the effect of AWP on prices negotiated between insurers and providers by exploiting the introduction of a regulation targeting retail pharmacies in the state of Maine. Using insurance claim level data and across state variation in exposure to the regulation, we estimate increases in negotiated pharmaceutical prices. Our results are consistent with AWP regulations’ reducing competition by inhibiting the ability of insurers to move demand across competing pharmacies.

中文翻译：

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任何愿意提供者和商定零售药品价格*

任何自愿提供者（AWP）法规都要求保险公司允许医疗保健提供者建立网络成员资格，从而消除了保险公司对有限的提供者网络做出承诺的能力。通过利用针对缅因州零售药店的法规的引入，我们研究了AWP对保险公司和提供商之间协商的价格的影响。使用保险索赔级别数据以及各州在法规承受风险方面的变化，我们估计议定药品价格的上涨。我们的结果与AWP法规通过抑制保险公司在竞争药店之间转移需求的能力来减少竞争相一致。