The Impact of Medicaid on Labor Market Activity and Program Participation: Evidence from the Oregon Health Insurance Experiment
利用俄勒冈州2008年针对低收入无保险成年人的医疗补助抽签随机实验，发现医疗补助对就业或收入无显著影响，但增加了食品券领取，对其他政府福利影响很小。
In 2008, a group of uninsured low-income adults in Oregon was selected by lottery for the chance to apply for Medicaid. Using this randomized design and 2009 administrative data, we find no significant effect of Medicaid on employment or earnings. Our 95 percent confidence intervals allow us to reject that Medicaid causes a decline in employment of more than 4.4 percentage points, or an increase of more than 1.2 percentage points. Medicaid increases food stamps receipt, but has little, if any, impact on receipt of other measured government benefits, including SSDI.