The Effects of State Medicaid Expansions for Working-Age Adults on Senior Medicare Beneficiaries
研究了针对劳动年龄成人的医疗补助扩展如何影响老年医疗保险受益人的医疗支出和利用率，发现对双重资格人群的支出有显著减少，且无不良健康影响。
Do Medicaid expansions to working-age adults affect healthcare spending and utilization among older Medicare beneficiaries? Although economic theory provides conflicting predictions about the presence and direction of such spillover effects, it does identify circumstances when spillovers can reduce Medicare spending. Using data on Medicaid expansions during the 2000s and microdata from the Medicare Current Beneficiary Survey, we find that a 1 percentage point rise in the share of working-age adults eligible for Medicaid has modest effects on the average Medicare beneficiary's spending, but reduces average spending by $477 among dual eligibles. Importantly, we find no evidence of adverse health effects.