Estimating the Value of Public Insurance Using Complementary Private Insurance

Working Paper: NBER ID: w22583

Authors: Marika Cabral; Mark R. Cullen

Abstract: The welfare associated with public insurance is often difficult to quantify because the demand for coverage is unobserved and thus cannot be used to analyze welfare. However, in many settings, individuals can purchase private insurance to supplement public coverage. This paper outlines an approach to use data and variation from private complementary insurance to quantify welfare associated with counterfactuals related to compulsory public insurance. We then apply this approach using administrative data on disability insurance. Our findings suggests that public disability insurance generates substantial surplus for the sample population, and there may be gains to increasing the generosity of coverage.

Keywords: public insurance; private insurance; welfare analysis; disability insurance; social insurance

JEL Codes: H00; H53; I38; J68


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
public disability insurance (H55)substantial surplus for the sample population (C83)
increase in premium (G52)decrease in enrollment (I21)
increasing the generosity of public disability insurance (H53)substantial welfare gains for employees without supplemental coverage (J32)

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