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Public Economics Lectures Part 1: Introduction

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Rothstein: Caveats<br />

1 Identification heavily complicated by recession, trends (SBTC); no<br />

clean control group<br />

2 Data limitations: no panel data; problems in measurement — no<br />

annual income, cannot measure MTR<br />

3 Selection on endogenous variables<br />

4 Short run vs. long run effects; important due to evidence of nominal<br />

wage rigidities.<br />

5 Pure extensive-margin analysis. Intensive margin would go the other<br />

way b/c EITC is not a marginal subsidy to wage for a very large<br />

fraction of the population.<br />

6 General equilibrium effects are not considered<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 2: Tax Incidence 82 / 142

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