Working Paper: NBER ID: w9058
Authors: David Card; Lara D. Shores-Heppard
Abstract: This paper exploits the discrete nature of the eligibility criteria for two major federal expansions of Medicaid to measure the effects on Medicaid coverage, overall health insurance coverage, and the probability of visiting a doctor. The '100 percent' expansion, effective in 1991, extended Medicaid eligibility to children born after September 30, 1983 in families below the poverty line. We estimate that this law led to about a 10 percentage point rise in Medicaid coverage for children born just after the cutoff date, and a similar or slightly smaller rise in overall health insurance. It also increased the fraction of children in the newly eligible group with a doctor visit in the previous year. The '133 percent' expansion, effective in 1990, extended Medicaid to children under 6 in families with incomes below 133 percent of the poverty line. This law had relatively small effects on Medicaid coverage for children near the eligibility limits, and little or no effect on health insurance coverage.
Keywords: No keywords provided
JEL Codes: I18; I38
Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.
| Cause | Effect |
|---|---|
| take-up rates of Medicaid (I18) | experience with mean-tested programs (I38) |
| Medicaid eligibility (I18) | Medicaid coverage (I18) |
| Medicaid eligibility (I18) | overall health insurance coverage (I13) |
| Medicaid eligibility (I18) | probability of visiting a doctor (I11) |
| 133 percent expansion (F29) | Medicaid coverage (I18) |
| 133 percent expansion (F29) | overall health insurance coverage (I13) |
| 133 percent expansion (F29) | probability of visiting a doctor (I11) |