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Public Economics Lectures Part 1: Introduction

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Baily-Chetty model: Setup<br />

UI system that pays constant benefit b to unemployed agents<br />

Benefits financed by lump sum tax t(b) in the high state<br />

Govt’s balanced-budget constraint:<br />

e · t(b) = (1 − e) · b<br />

Let u(c) denote utility over consumption (strictly concave)<br />

Agent’s expected utility is<br />

eu(A + w h − t(b)) + (1 − e)u(A + w l + b) − ψ(e)<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 39 / 207

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