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Public Economics Lectures Part 1: Introduction

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Feldstein and Altman 2007<br />

Calculation of changes in present value of lifetime wealth from switch<br />

to UISA by income quintile:<br />

Q1 Q2 Q3 Q4 Q5<br />

Present Value Gain: -$95 +$22 -$67 +$94 +$468<br />

Net PVG is positive<br />

Without change in behavior, how is the pie larger?<br />

Reason: discounting at 2% but earning 5.5% interest<br />

<strong>Public</strong> <strong>Economics</strong> <strong>Lectures</strong> () <strong>Part</strong> 6: Social Insurance 122 / 207

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