Did Medicaid Expansion Reduce Medical Divorce?

NBER Working Paper No. 23139

Issued in February 2017, Revised in July 2020

NBER Program(s):Economics of Aging, Health Care, Health Economics



Medical divorce occurs when couples split up so that one spouse’s medical bills do not deplete the assets of the healthy spouse. It has not been studied in the economics literature, but it has been discussed by attorneys and widely reported in the media. We develop a model of medical divorce that demonstrates that divorce is optimal when a couple’s joint assets exceed the exempted asset level. We use the Affordable Care Act’s Medicaid expansion which removed asset tests to qualify for Medicaid as exogenous variation in the incidence of divorce (as it was only implemented by some states). We find that the ACA expansion decreased the prevalence of divorce by 11.6% among those ages 50–64 with a college degree. These results are robust to numerous placebo checks including older subsamples (who qualify for Medicare regardless of assets) and earlier years (before the expansion was implemented). Our results suggest that Medicaid expansion reduced medical divorce.

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Document Object Identifier (DOI): 10.3386/w23139

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