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Public Economics Lectures Part 1: Introduction

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Empirical Evidence: Bound-Parsons Debate<br />

Question: Did increase in DI benefits cause decline in labor supply?<br />

Well-known debate between Bound & Parsons in 1980s<br />

Parsons (1980)<br />

Uses cross-sectional variation in replacement rates<br />

Data on men aged 45-59 in 1966-69 NLSY<br />

OLS regression:<br />

LFP i = α + βDIreprate i + ε i<br />

where DIreprate is calculated using wage in 1966<br />

Finds elasticity of 0.6<br />

Simulations using this elasticity imply that increase in DI can<br />

completely explain decline in elderly labor force participation<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 150 / 207

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