Can social security be welfare improving when there is demographic uncertainty?
This paper studies the welfare implications of a PAYG pension system in a neoclassical growth model with overlapping generations, demographic uncertainty and sequentially incomplete markets. In absence of public pensions, small cohorts tend to be favored by the changes in relative prices implied by demographic shocks. As described in Bohn (1999), PAYG Define Benefit systems can help to share the financial risks created by demographic uncertainty across the generations. The overall welfare impact depends on the balance between this insurance effect and the well known crowding-out effect stemming from the unfunded character of the system. Therefore, the question about the total welfare impact of PAYG pensions is intrinsically quantitative. In this paper we use a four-periods OLG model calibrated to the US economy to provide a first quantitative assessment of the relative size of the different effects involved.The findings are unfavorable for PAYG pension systems: the size of the crowding-out effect is large enough to offset the benefits from risk sharing, making the introduction of public pensions a welfare decreasing process (even in ex-ante terms). In particular, with a marginal PAYG pension scheme (providing a 2\% replacement rate of the average wage) small cohorts lose the equivalent to a 1.9% of their consumption in the age interval 20/40, while larger cohorts loss is 1.5%.
(This abstract was borrowed from another version of this item.)
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Kevin M. Murphy & Finis Welch, 1992. "The Structure of Wages," The Quarterly Journal of Economics, Oxford University Press, vol. 107(1), pages 285-326.
- Michele Boldrin & Mariacristina De Nardi & Larry E. Jones, 2005.
"Fertility and Social Security,"
359, Federal Reserve Bank of Minneapolis.
- Michele Boldrin & Mariacristina De Nardi & Larry E. Jones, 2005. "Fertility and Social Security," NBER Working Papers 11146, National Bureau of Economic Research, Inc.
- Michele Boldrin & Maria Cristina De Nardi & Larry E. Jones, 2005. "Fertility and Social Security," Levine's Bibliography 666156000000000506, UCLA Department of Economics.
- Robin Brooks, 2002. "Asset-Market Effects of the Baby Boom and Social-Security Reform," American Economic Review, American Economic Association, vol. 92(2), pages 402-406, May.
- Imrohoroglu, Ayse & Imrohoroglu, Selahattin & Joines, Douglas H, 1995. "A Life Cycle Analysis of Social Security," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 6(1), pages 83-114, June.
- Richard Blundell & Martin Browning & Costas Meghir, 1994.
"Consumer Demand and the Life-Cycle Allocation of Household Expenditures,"
Review of Economic Studies,
Oxford University Press, vol. 61(1), pages 57-80.
- Richard Blundell & Martin Browning & Costas Meghir, 1993. "Consumer demand and the life-cycle allocation of household expenditures," IFS Working Papers W93/11, Institute for Fiscal Studies.
- Andrew B. Abel & N. Gregory Mankiw & Lawrence H. Summers & Richard J. Zeckhauser, 1986.
"Assessing Dynamic Efficiency: Theory and Evidence,"
NBER Working Papers
2097, National Bureau of Economic Research, Inc.
- Andrew Abel & Gregory N. Mankiw & Lawrence H. Summers & Richard Zeckhauser, "undated". "Assessing Dynamic Efficiency: Theory and Evidence," Rodney L. White Center for Financial Research Working Papers 14-88, Wharton School Rodney L. White Center for Financial Research.
- Luisa Fuster & Ayse Imrohoroglu & Selahattin Imrohoroglu, 2003. "A welfare analysis of social security in a dynastic framework," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 44(4), pages 1247-1274, November.
- Orazio P. Attanasio & Guglielmo Weber, 1994.
"Is Consumption Growth Consistent with Intertemporal Optimization? Evidence from the Consumer Expenditure Survey,"
NBER Working Papers
4795, National Bureau of Economic Research, Inc.
- Attanasio, Orazio P & Weber, Guglielmo, 1995. "Is Consumption Growth Consistent with Intertemporal Optimization? Evidence from the Consumer Expenditure Survey," Journal of Political Economy, University of Chicago Press, vol. 103(6), pages 1121-1157, December.
- Kjetil Storesletten, "undated".
"Sustaining Fiscal Policy Through Immigration,"
_005, Stockholm University, Institute for International Economic Studies.
- Diamond, P. A., 1977. "A framework for social security analysis," Journal of Public Economics, Elsevier, vol. 8(3), pages 275-298, December.
- Krueger, Dirk & Kubler, Felix, 2005.
"Pareto improving social security reform when financial markets are incomplete!?,"
CFS Working Paper Series
2005/12, Center for Financial Studies (CFS).
- Dirk Krueger & Felix Kubler, 2006. "Pareto-Improving Social Security Reform when Financial Markets are Incomplete!?," American Economic Review, American Economic Association, vol. 96(3), pages 737-755, June.
- Dirk Krueger & Felix Kubler, 2003. "Pareto Improving Social Security Reform when Financial Markets are Incomplete?," NBER Working Papers 9410, National Bureau of Economic Research, Inc.
- Krueger, Dirk & Kübler, Felix, 2005. "Pareto Improving Social Security Reform when Financial Markets Are Incomplete," CEPR Discussion Papers 5039, C.E.P.R. Discussion Papers.
- Henning Bohn, 2001.
"Social Security and Demographic Uncertainty: The Risk-Sharing Properties of Alternative Policies,"
in: Risk Aspects of Investment-Based Social Security Reform, pages 203-246
National Bureau of Economic Research, Inc.
- Henning Bohn, 1999. "Social Security and Demographic Uncertainty: The Risk Sharing Properties of Alternative Policies," NBER Working Papers 7030, National Bureau of Economic Research, Inc.
- HUANG, HE & IMROHOROG[caron]LU, SELAHATTIN & SARGENT, THOMAS J., 1997. "Two Computations To Fund Social Security," Macroeconomic Dynamics, Cambridge University Press, vol. 1(01), pages 7-44, January.
- Hubbard, R Glenn & Judd, Kenneth L, 1987. "Social Security and Individual Welfare: Precautionary Saving, Borrowing Constraints, and the Payroll Tax," American Economic Review, American Economic Association, vol. 77(4), pages 630-646, September.
- Storesletten, Kjetil & Telmer, Chris I. & Yaron, Amir, 1999.
"The risk-sharing implications of alternative social security arrangements,"
Carnegie-Rochester Conference Series on Public Policy,
Elsevier, vol. 50(1), pages 213-259, June.
- Kjetil Storesletten & Chris Telmer & Amir Yaron, 1998. "The risk sharing implications of alternative social security arrangements," GSIA Working Papers 252, Carnegie Mellon University, Tepper School of Business.
- Luisa Fuster, 1997.
"Is altruism important for understanding the long-run effects of social security?,"
Economics Working Papers
234, Department of Economics and Business, Universitat Pompeu Fabra.
- Luisa Fuster, 1999. "Is Altruism Important for Understanding the Long-Run Effects of Social Security?," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(3), pages 616-637, July.
- Krusell, P & Smith Jr, A-A, 1995.
"Income and Wealth Heterogeneity in the Macroeconomic,"
RCER Working Papers
399, University of Rochester - Center for Economic Research (RCER).
- Per Krusell & Anthony A. Smith & Jr., 1998. "Income and Wealth Heterogeneity in the Macroeconomy," Journal of Political Economy, University of Chicago Press, vol. 106(5), pages 867-896, October.
- Per Krusell & Anthony A. Smith, Jr., "undated". "Income and Wealth Heterogeneity in the Macroeconomy," GSIA Working Papers 1997-37, Carnegie Mellon University, Tepper School of Business.
- Epstein, Larry G & Zin, Stanley E, 1989. "Substitution, Risk Aversion, and the Temporal Behavior of Consumption and Asset Returns: A Theoretical Framework," Econometrica, Econometric Society, vol. 57(4), pages 937-969, July.
- Andrew B. Abel, 2001.
"Will Bequests Attenuate The Predicted Meltdown In Stock Prices When Baby Boomers Retire?,"
The Review of Economics and Statistics,
MIT Press, vol. 83(4), pages 589-595, November.
- Andrew B. Abel, 2001. "Will bequests attenuate the predicted meltdown in stock prices when baby boomers retire?," Working Papers 01-2, Federal Reserve Bank of Philadelphia.
- Andrew B. Abel, 2001. "Will Bequests Attenuate the Predicted Meltdown in Stock Prices When Baby Boomers Retire?," NBER Working Papers 8131, National Bureau of Economic Research, Inc.
- Krueger, Dirk & Kubler, Felix, 2004. "Computing equilibrium in OLG models with stochastic production," Journal of Economic Dynamics and Control, Elsevier, vol. 28(7), pages 1411-1436, April.
- Kenc, Turalay & Sayan, Serdar, 2001. "Demographic shock transmission from large to small countries: An overlapping generations CGE analysis," Journal of Policy Modeling, Elsevier, vol. 23(6), pages 677-702, August.
- Miles, David K & Sefton, James, 2002. "Optimal Social Security Design," CEPR Discussion Papers 3290, C.E.P.R. Discussion Papers.
- Bernard Casey & Howard Oxley & Edward R. Whitehouse & Pablo Antolín & Romain Duval & Willi Leibfritz, 2003. "Policies for an Ageing Society: Recent Measures and Areas for Further Reform," OECD Economics Department Working Papers 369, OECD Publishing.
When requesting a correction, please mention this item's handle: RePEc:eee:dyncon:v:30:y:2006:i:9-10:p:1615-1646. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Dana Niculescu)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.