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Public Economics Lectures Part 1: Introduction

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Coasian Solution<br />

Externalities emerge because property rights are not well defined.<br />

Establish property rights to create markets for pollution.<br />

Consider example of pollution in a river.<br />

If consumer owns river, in competitive equilibrium, firms pay d for<br />

every unit of pollution emitted.<br />

Marginal cost of production is now c ′ (x) + d, leading to 1st best.<br />

Symmetric solution when firm owns river.<br />

Assignment of property rights affects distribution but not effi ciency<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 7: <strong>Public</strong> Goods and Externalities 88 / 138

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