The Welfare Gains of Improving Risk Sharing in Social Security

Conny Olovsson

No 728, Seminar Papers from Stockholm University, Institute for International Economic Studies

Abstract: This paper shows that improved intergenerational risk sharing in social security may imply very large welfare gains, amounting to up to 15 percent of the per-period consumption relative to the current U.S. consumption. Improved risk sharing raises welfare through a direct effect, i.e., by correcting an initially inefficient allocation of risk, and through a general equilibrium (GE) effect. The GE effect is due to the fact that the allocation of risk in the pay-as-you-go system influences the demand for capital. As a result, with an efficient risk sharing arrangement, the crowding out effect associated with an unfunded system can actually be completely eliminated. Efficient risk sharing in social security implies highly volatile and pro-cyclical benefits, i.e., that retirees' exposure to productivity risk is increased. Consequently, a policy involving completely safe benefits will unambiguously be welfare reducing.

Keywords: Social security; Risk sharing (search for similar items in EconPapers)
JEL-codes: E21 H21 H55 (search for similar items in EconPapers)
Pages: 29 pages
Date: 2004-03-10
New Economics Papers: this item is included in nep-pub
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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Related works:
Working Paper: The Welfare Gains of Improving Risk Sharing in Social Security (2005)
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Persistent link: https://EconPapers.repec.org/RePEc:hhs:iiessp:0728

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