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Propagation and Smoothing of Shocks in Alternative Social Security Systems

Alan Auerbach, Lorenz Kueng and Ronald Lee

No 19137, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: Even with well-developed capital markets, there is no private market mechanism for trading between current and future generations, so a potential role for public old-age pension systems is to spread economic and demographic shocks among different generations. This paper evaluates the smoothing and propagation of shocks of three pay-as-you-go public pension schemes, based on the actual U.S. and German systems, which vary in the extent to which they rely on tax adjustments versus benefit adjustments to provide annual cash-flow budget balance. Modifying the Auerbach-Kotlikoff (1987) dynamic general-equilibrium overlapping generations model to incorporate realistic patterns of fertility and mortality and shocks to productivity, fertility and mortality, we evaluate the effectiveness of the three public pension systems at spreading the effects of such shocks. We find that the systems, particularly those that rely to some extent on tax adjustments, are effective at spreading fertility and mortality shocks, but that this is not the case for productivity shocks, for which the pension systems actually tend to concentrate the economic impact. These results suggest that both system design and the source of shocks are important factors in determining the potential of public pension arrangements to spread the burden of shocks.

JEL-codes: H22 H53 J11 (search for similar items in EconPapers)
Date: 2013-06
New Economics Papers: this item is included in nep-age, nep-dem, nep-dge and nep-pbe
Note: AG PE
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Published as Alan Auerbach & Lorenz Kueng & Ronald Lee & Yury Yatsynovich, 2018. "Propagation and smoothing of shocks in alternative social security systems," Journal of Public Economics, vol 164, pages 91-105.

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Journal Article: Propagation and smoothing of shocks in alternative social security systems (2018) Downloads
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