Stemming the Tide: The Effect of Expanding Medicaid Eligibility on Health Insurance

Working Paper: NBER ID: w11091

Authors: Lara D. Shoresheppard

Abstract: Despite considerable research, there is little consensus about the impact of Medicaid eligibility expansions for low-income children. In this paper, I reexamine the expansions' impact on Medicaid take-up and private insurance "crowd-out." Focusing on the most influential estimates of the expansions' impact, I show that while many of the critiques leveled at these estimates have little effect on their magnitude, accounting for age-specific trends in coverage produces estimates similar to others in the literature. Estimating the impact of later expansions using additional years of data, I find low rates of take-up and no evidence of crowding out.

Keywords: Medicaid; health insurance; low-income children; crowd out; takeup rates

JEL Codes: I1


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Medicaid eligibility expansions (I18)insurance coverage (G52)
age-specific trends (J11)estimated marginal takeup rates (J49)
Medicaid eligibility expansions (I18)crowdout effect (D26)
control variables (C39)biases in estimates (C51)
state expansions in later years (H79)health insurance coverage for newly eligible children (I13)

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