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Social Security and the Interactions Between Aggregate and Idiosyncratic Risk

  • Daniel Harenberg
  • Alexander Ludwig

We ask whether a PAYG-financed social security system is welfare improving in an economy with idiosyncratic and aggregate risk. We argue that interactions between the two risks are important for this question. One is a direct interaction in the form of a countercyclical variance of idiosyncratic income risk. The other indirectly emerges over a household's life-cycle because retirement savings contain the history of idiosyncratic and aggregate shocks. We show that this leads to risk interactions, even when risks are statistically independent. In our quantitative analysis, we find that introducing social security with a contribution rate of two percent leads to welfare gains of 2.2% of lifetime consumption in expectation, despite substantial crowding out of capital. This welfare gain stands in contrast to the welfare losses documented in the previous literature, which studies one risk in isolation. We show that jointly modeling both risks is crucial: 60% of the welfare benefits from insurance result from the interactions of risks.

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Paper provided by University of Cologne, Department of Economics in its series Working Paper Series in Economics with number 71.

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Date of creation: 20 Mar 2014
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Handle: RePEc:kls:series:0071
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  1. Constantinides, George M & Duffie, Darrell, 1996. "Asset Pricing with Heterogeneous Consumers," Journal of Political Economy, University of Chicago Press, vol. 104(2), pages 219-40, April.
  2. Günter Franke & Harris Schlesinger & Richard C. Stapleton, 2006. "Multiplicative Background Risk," Management Science, INFORMS, vol. 52(1), pages 146-153, January.
  3. Michele Boldrin & Lawrence J. Christiano & Jonas D.M. Fisher, 1995. "Asset pricing lessons for modeling business cycles," Working Papers 560, Federal Reserve Bank of Minneapolis.
  4. Gordon, Roger H. & Varian, Hal R., 1988. "Intergenerational risk sharing," Journal of Public Economics, Elsevier, vol. 37(2), pages 185-202, November.
  5. Kopecky, Karen A. & Suen, Richard M. H., 2009. "Finite State Markov-Chain Approximations to Highly Persistent Processes," MPRA Paper 17201, University Library of Munich, Germany.
  6. Philippe Weil, 1989. "The Equity Premium Puzzle and the Riskfree Rate Puzzle," NBER Working Papers 2829, National Bureau of Economic Research, Inc.
  7. Julio Davila & Jay H. Hong & Per Krusell & José-Victor Rios Rull, 2005. "Constrained efficiency in the neoclassical growth model with uninsurable idiosyncratic shocks," Cahiers de la Maison des Sciences Economiques b05066, Université Panthéon-Sorbonne (Paris 1).
  8. Raghuram G. Rajan & Luigi Zingales, 1994. "What Do We Know About Capital Structure? Some Evidence from International Data," NBER Working Papers 4875, National Bureau of Economic Research, Inc.
  9. Daniel Harenberg & Alexander Ludwig, 2014. "Social Security in an Analytically Tractable Overlapping Generations Model with Aggregate and Idiosyncratic Risk," CER-ETH Economics working paper series 14/204, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.
  10. Hans Fehr & Christian Habermann, 2008. "Risk Sharing and Efficiency Implications of Progressive Pension Arrangements," Scandinavian Journal of Economics, Wiley Blackwell, vol. 110(2), pages 419-443, 06.
  11. Ludwig, Alexander & Schelkle, Thomas & Vogel, Edgar, 2010. "Demographic Change, Human Capital and Welfare," MEA discussion paper series 10196, Munich Center for the Economics of Aging (MEA) at the Max Planck Institute for Social Law and Social Policy.
  12. Auerbach, Alan J & Kotlikoff, Laurence J & Skinner, Jonathan, 1983. "The Efficiency Gains from Dynamic Tax Reform," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 24(1), pages 81-100, February.
  13. Mark Huggett & Juan Carols Parra, 2006. "How Well Does the US Social Insurance System Provide Social Insurance?," Working Papers gueconwpa~06-06-11, Georgetown University, Department of Economics.
  14. Carroll, Christopher D., 2006. "The method of endogenous gridpoints for solving dynamic stochastic optimization problems," Economics Letters, Elsevier, vol. 91(3), pages 312-320, June.
  15. Matsen, E. & Thogersen, O., 2001. "Designing Social Security - A Portfolio Choice Approach," Papers 21/2001, Norwegian School of Economics and Business Administration-.
  16. Shinichi Nishiyama & Kent Smetters, 2007. "Does Social Security Privatization Produce Efficiency Gains?," The Quarterly Journal of Economics, MIT Press, vol. 122(4), pages 1677-1719, November.
  17. Jasmina Hasanhodzic & Laurence J. Kotlikoff, 2013. "Generational Risk–Is It a Big Deal?: Simulating an 80-Period OLG Model with Aggregate Shocks," BYU Macroeconomics and Computational Laboratory Working Paper Series 2013-01, Brigham Young University, Department of Economics, BYU Macroeconomics and Computational Laboratory.
  18. Laurence Ball & N. Gregory Mankiw, 2001. "Intergenerational Risk Sharing in the Spirit of Arrow, Debreu, and Rawls, with Applications to Social Security Design," Harvard Institute of Economic Research Working Papers 1921, Harvard - Institute of Economic Research.
  19. Fernández-Villaverde, Jesús & Krueger, Dirk, 2011. "Consumption And Saving Over The Life Cycle: How Important Are Consumer Durables?," Macroeconomic Dynamics, Cambridge University Press, vol. 15(05), pages 725-770, November.
  20. Ludwig, Alexander & Reiter, Michael, 2008. "Sharing Demographic Risk - Who is Afraid of the Baby Bust?," Sonderforschungsbereich 504 Publications 08-47, Sonderforschungsbereich 504, Universität Mannheim;Sonderforschungsbereich 504, University of Mannheim.
  21. Mark Huggett & Gustavo Ventura, 1998. "On the Distributional Effects of Social Security Reform," Working Papers 9801, Centro de Investigacion Economica, ITAM.
  22. Mark Huggett & Gustavo Ventura & Amir Yaron, 2007. "Sources of Lifetime Inequality," NBER Working Papers 13224, National Bureau of Economic Research, Inc.
  23. Imrohoroglu, Ayse & Imrohoroglu, Selahattin & Joines, Douglas H, 1998. "The Effect of Tax-Favored Retirement Accounts on Capital Accumulation," American Economic Review, American Economic Association, vol. 88(4), pages 749-68, September.
  24. David M Kreps & Evan L Porteus, 1978. "Temporal Resolution of Uncertainty and Dynamic Choice Theory," Levine's Working Paper Archive 625018000000000009, David K. Levine.
  25. Hintermaier, Thomas & Koeniger, Winfried, 2010. "The method of endogenous gridpoints with occasionally binding constraints among endogenous variables," Journal of Economic Dynamics and Control, Elsevier, vol. 34(10), pages 2074-2088, October.
  26. Bohn, Henning, 2009. "Intergenerational risk sharing and fiscal policy," Journal of Monetary Economics, Elsevier, vol. 56(6), pages 805-816, September.
  27. Kjetil Storesletten & Chris Telmer & Amir Yaron, . "Asset pricing with idiosyncratic risk and overlapping generations," GSIA Working Papers 226, Carnegie Mellon University, Tepper School of Business.
  28. Per Krusell & Anthony A. Smith, Jr., . "Income and Wealth Heterogeneity, Portfolio Choice, and Equilibrium Asset Returns," GSIA Working Papers 1997-45, Carnegie Mellon University, Tepper School of Business.
  29. Mikhail Golosov & Ali Shourideh & Maxim Troshkin & Aleh Tsyvinski, 2013. "Optimal Pension Systems with Simple Instruments," American Economic Review, American Economic Association, vol. 103(3), pages 502-07, May.
  30. 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.
  31. 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.
  32. Thomas Hintermaier & Winfried Koeniger, 2011. "On the Evolution of the US Consumer Wealth Distribution," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 14(2), pages 317-338, April.
  33. Ravi Bansal & Amir Yaron, 2000. "Risks for the Long Run: A Potential Resolution of Asset Pricing Puzzles," NBER Working Papers 8059, National Bureau of Economic Research, Inc.
  34. Iván Werning, 2007. "Optimal Fiscal Policy with Redistribution," The Quarterly Journal of Economics, MIT Press, vol. 122(3), pages 925-967, 08.
  35. Kuhle, Wolfgang, 2012. "Dynamic efficiency and the two-part golden rule with heterogeneous agents," Journal of Macroeconomics, Elsevier, vol. 34(4), pages 992-1006.
  36. Lucas, Robert E, Jr, 1978. "Asset Prices in an Exchange Economy," Econometrica, Econometric Society, vol. 46(6), pages 1429-45, November.
  37. Per Krusell & Anthony A. Smith, Jr., . "Income and Wealth Heterogeneity in the Macroeconomy," GSIA Working Papers 1997-37, Carnegie Mellon University, Tepper School of Business.
  38. Mariacristina De Nardi, 2002. "Wealth inequality and intergenerational links," Staff Report 314, Federal Reserve Bank of Minneapolis.
  39. Alexander Ludwig & Thomas Schelkle & Edgar Vogel, 2011. "Online Appendix to "Demographic Change, Human Capital and Welfare"," Technical Appendices 08-168, Review of Economic Dynamics.
  40. Kjetil Storesletten & Chris I. Telmer & Amir Yaron, 2004. "Cyclical Dynamics in Idiosyncratic Labor Market Risk," Journal of Political Economy, University of Chicago Press, vol. 112(3), pages 695-717, June.
  41. Epstein, Larry G & Zin, Stanley E, 1991. "Substitution, Risk Aversion, and the Temporal Behavior of Consumption and Asset Returns: An Empirical Analysis," Journal of Political Economy, University of Chicago Press, vol. 99(2), pages 263-86, April.
  42. N. Gregory Mankiw, 1986. "The Equity Premium and the Concentration of Aggregate Shocks," NBER Working Papers 1788, National Bureau of Economic Research, Inc.
  43. Olovsson, Conny, 2010. "Quantifying the risk-sharing welfare gains of social security," Journal of Monetary Economics, Elsevier, vol. 57(3), pages 364-375, April.
  44. Imrohoroglu, Ayse & Imrohoroglu, Selahattin & Joines, Douglas H, 1995. "A Life Cycle Analysis of Social Security," Economic Theory, Springer, vol. 6(1), pages 83-114, June.
  45. Tom Krebs, 2007. "Job Displacement Risk and the Cost of Business Cycles," American Economic Review, American Economic Association, vol. 97(3), pages 664-686, June.
  46. 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 937-69, July.
  47. Juan C. Conesa & Dirk Krueger, 1999. "Social Security Reform with Heterogeneous Agents," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(4), pages 757-795, October.
  48. Massimiliano De Santis, 2007. "Individual Consumption Risk and the Welfare Cost of Business Cycles," American Economic Review, American Economic Association, vol. 97(4), pages 1488-1506, September.
  49. Jasmina Hasanhodzic & Laurence J. Kotlikoff, 2013. "Generational Risk - Is It a Big Deal?: Simulating an 80-Period OLG Model with Aggregate Shocks," NBER Working Papers 19179, National Bureau of Economic Research, Inc.
  50. Robert C. Merton, 1983. "On the Role of Social Security as a Means for Efficient Risk Sharing in an Economy Where Human Capital Is Not Tradable," NBER Chapters, in: Financial Aspects of the United States Pension System, pages 325-358 National Bureau of Economic Research, Inc.
  51. Diamond, P. A., 1977. "A framework for social security analysis," Journal of Public Economics, Elsevier, vol. 8(3), pages 275-298, December.
  52. Roozbeh Hosseini & Lei (Nick) Guo & Frank Caliendo, 2013. "Social Security is NOT a Substitute for Annuities," 2013 Meeting Papers 680, Society for Economic Dynamics.
  53. Francisco Gomes & Alexander Michaelides, 2008. "Asset Pricing with Limited Risk Sharing and Heterogeneous Agents," Review of Financial Studies, Society for Financial Studies, vol. 21(1), pages 415-448, January.
  54. Gollier, Christian & Pratt, John W, 1996. "Risk Vulnerability and the Tempering Effect of Background Risk," Econometrica, Econometric Society, vol. 64(5), pages 1109-23, September.
  55. Ana Castaneda & Javier Diaz-Gimenez & Jose-Victor Rios-Rull, 2003. "Accounting for the U.S. Earnings and Wealth Inequality," Journal of Political Economy, University of Chicago Press, vol. 111(4), pages 818-857, August.
  56. Cordoba, Juan Carlos & Ripoll, Marla, 2013. "Beyond Expected Utility in the Economics of Health and Longevity," Staff General Research Papers 36067, Iowa State University, Department of Economics.
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