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Public Economics Lectures Part 1: Introduction

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Samuelson (1954) Rule<br />

Condition for Pareto effi ciency: sum of MRS is equal to MRT:<br />

∑ MRSGX h = MRT GX<br />

h<br />

Intuition: an additional unit of G increases the utility of all<br />

households in the public good case<br />

With G a private good, an additional unit only increases one<br />

individual’s utility<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 7: <strong>Public</strong> Goods and Externalities 13 / 138

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