We examine how physicians’ practice locations are affected by Medicaid expansions. We focus on the dramatic Medicaid eligibility expansions for pregnant women that took place between the early 1980s and the early 1990s. Following a recently‐developed estimation strategy, we identify the change in OB/GYN supply due to the expansions in an event‐study framework. We find that OB/GYN counts per capita grew post‐expansion and the increase persisted for years. Our results are mainly driven by early‐career OB/GYNs and concentrated in densely populated or poor counties. Our results show that Medicaid coverage rules could be an important determinant of physician location choice.

中文翻译：

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镇上现在有更多医生吗？医疗补助扩展的证据

我们研究了医疗补助扩张如何影响医生的执业地点。我们重点关注 20 世纪 80 年代初至 90 年代初孕妇医疗补助资格急剧扩大的情况。根据最近开发的估计策略，我们确定了由于事件研究框架的扩展而导致的妇产科供应的变化。我们发现，人均妇产科人数在扩张后有所增长，并且这种增长持续了多年。我们的结果主要是由早期职业妇产科医生推动的，并且集中在人口稠密或贫困县。我们的结果表明，医疗补助覆盖范围规则可能是医生地点选择的重要决定因素。