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Public Economics Lectures Part 1: Introduction

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Baily-Chetty model: Setup<br />

Static model with two states: high (employed) and low (unemployed)<br />

Let w h denote the individual’s income in the high state and w l < w h<br />

income in the low state<br />

Let A denote wealth, c h consumption in the high state, and c l<br />

consumption in the low state<br />

Agent is initially unemployed. Controls probability of being in the bad<br />

state by exerting search effort e at a cost ψ(e)<br />

Choose units of e so that the probability of being in the high state is<br />

given by p(e) = e<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 38 / 207

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