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Public Economics Lectures Part 1: Introduction

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<strong>Part</strong>ial Equilibrium Model: Setup<br />

Two goods: x and y<br />

Government levies an excise tax on good x<br />

Excise/Specific tax: levied on a quantity (e.g. gallon, pack, ton)<br />

Ad-valorem tax: fraction of prices (e.g. sales tax)<br />

Let p denote the pretax price of x and q = p + t denote the tax<br />

inclusive price of x<br />

Good y, the numeraire, is untaxed<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 2: Tax Incidence 9 / 142

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