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Public Economics Lectures Part 1: Introduction

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Optimal Subsidies for Charity (Saez 2004)<br />

With flat social welfare weights, optimal tax rate t G for charitable<br />

good G satisfies<br />

λ + t G<br />

1 + t G<br />

= 1 β<br />

Generalizes Ramsey inverse-elasticity rule by allowing λ > 0<br />

Analogous to Sandmo 1975 correction for externalities<br />

If λ = 1 (PG equivalent to charity), t G should be set so that<br />

β(t G ) = 1, as above<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 7: <strong>Public</strong> Goods and Externalities 75 / 138

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