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American Economic Review: Vol. 96 No. 3 (June 2006)

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Pareto-Improving Social Security Reform when Financial Markets are Incomplete!?

Article Citation

Krueger, Dirk, and Felix Kubler. 2006. "Pareto-Improving Social Security Reform when Financial Markets are Incomplete!?." American Economic Review, 96(3): 737-755.

DOI: 10.1257/aer.96.3.737

Abstract

This paper studies an overlapping generations model with stochastic production and incomplete markets to assess whether the introduction of an unfunded social security system leads to a Pareto improvement. When returns to capital and wages are imperfectly correlated, a system that endows retired households with claims to labor income enhances the sharing of aggregate risk between generations. Our quantitative analysis shows that, abstracting from the capital crowding-out effect, the introduction of social security represents a Pareto-improving reform, even when the economy is dynamically efficient. However, the severity of the crowding-out effect in general equilibrium tends to overturn these gains. (JEL D58, D91, E62, H31, H55)

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Authors

Krueger, Dirk
Kubler, Felix


American Economic Review



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