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Public Economics Lectures Part 1: Introduction

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First Best if G is Private<br />

Taking ratios of FOCs yields<br />

UG<br />

h<br />

UX<br />

h<br />

= F G<br />

F X<br />

Set of Pareto effi cient allocations is set of allocations that satisfy:<br />

MRS h GX = MRT GX ∀h<br />

Decentralized market equilibrium will implement such an allocation<br />

(1st Welfare Thm).<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 7: <strong>Public</strong> Goods and Externalities 10 / 138

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