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Review of Economic Studies Vol. 92 No. 1 2025

Labour Market Screening and the Design of Social Insurance: An Equilibrium Analysis of the Labour Market for the Disabled

Naoki Aizawa1; Soojin Kim2; Serena Rhee3

1 University of Wisconsin-Madison, USA and NBER , · 2 Georgia State University · 3 Chung-Ang University

Abstract

This article studies how firms’ screening incentives in the labour market affect the optimal design of social insurance programs and quantitatively assesses the U.S. disability policies accounting for firms’ screening of the disabled. We develop an equilibrium search model where workers with different productivities have heterogeneous preferences over non-wage benefits and firms cannot offer an employment contract that explicitly depends on worker types. In this environment, firms may use contracts to screen out a certain type of workers, distorting employment rates and contracts in equilibrium. Therefore, the optimal structure of social insurance policies depends on firms’ screening incentives. We extend and structurally estimate this framework to quantitatively understand the inefficiencies arising from firms’ incentives to screen out disabled workers and examine the optimal joint design of disability insurance (DI) and various forms of firm subsidies. We find that hiring subsidies mitigate screening distortions; at the same time, they interact with DI by reducing the labour supply disincentives it generates. The optimal policy structure leads to a considerable welfare gain by simultaneously making firm subsidies and DI benefits more generous.

DOI
10.1093/restud/rdae015
Volume
92
Issue
1
Pages
1-39
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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