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

  • Dirk Krueger
  • Felix Kubler

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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File URL: http://www.aeaweb.org/articles.php?doi=10.1257/aer.96.3.737
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File URL: http://www.aeaweb.org/aer/data/june06_data_20031194.zip
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Article provided by American Economic Association in its journal American Economic Review.

Volume (Year): 96 (2006)
Issue (Month): 3 (June)
Pages: 737-755

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Handle: RePEc:aea:aecrev:v:96:y:2006:i:3:p:737-755
Note: DOI: 10.1257/aer.96.3.737
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