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Public Economics Lectures Part 1: Introduction

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Feldstein 1973: Second Best<br />

In second best, individual only internalizes copayment<br />

Consumes more medical care, because c ′ (m) < 1 and H is concave<br />

Resulting deadweight loss from insurance is analogous to that caused<br />

by overconsumption of a good because of a subsidy.<br />

Optimal copay rate can be determined using tools analogous to that<br />

in optimal UI model<br />

Tradeoff between risk and moral hazard<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 185 / 207

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