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Public Economics Lectures Part 1: Introduction

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Dynamics: Path of UI Benefits<br />

Classic reference is Shavell and Weiss (1979), who solved for optimal<br />

path of benefits in a 3 period model.<br />

Tradeoff: upward sloping path → more moral hazard but more<br />

consumption-smoothing benefits.<br />

Recent literature that is very active in this area: “new dynamic public<br />

finance” — optimal path of unemployment and disability programs.<br />

Hopenhayn and Nicolini (1997) — numerical simulations for case where<br />

govt can control consumption<br />

Shimer and Werning (2008) — with perfect liquidity and CARA utility,<br />

optimal benefit path is flat<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 130 / 207

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