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Optimal Unemployment Insurance in Labor Market Equilibrium when Workers can Self-Insure

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  • Reichling, Felix
Abstract
I develop an equilibrium matching model in which workers have preferences over consumption and hours of work and are able to self-insure against unemployment risks by accumulating precautionary wealth. Wages and working hours are the outcomes of Nash bargaining between workers and firms. I focus on an unemployment insurance (UI) system with constant benefits of indefinite duration financed through a constant labor income tax. Low-wealth individuals work unusually long hours to quickly accumulate precautionary wealth. The Frisch elasticity of labor supply governs a worker’s utility cost of supplying labor and hence the cost of accumulating precautionary wealth. A lower elasticity implies a higher utility cost of adjusting hours. I take Frisch elasticities from recent research using household data and find that the optimal level of UI benefits is between 34 and 40 percent of average compensation. The potential welfare gains from moving from current 34 percent to the optimal policy are as large as 0.13 percent of lifetime consumption. The optimal replacement rate is decreasing in the Frisch elasticity of labor supply.

Suggested Citation

  • Reichling, Felix, 2006. "Optimal Unemployment Insurance in Labor Market Equilibrium when Workers can Self-Insure," MPRA Paper 5362, University Library of Munich, Germany, revised 16 Oct 2007.
  • Handle: RePEc:pra:mprapa:5362
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    1. Rendon Sílvio, 2006. "Job Search And Asset Accumulation Under Borrowing Constraints ," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 47(1), pages 233-263, February.
    2. Christopher D. Carroll & Karen E. Dynan & Spencer D. Krane, 2003. "Unemployment Risk and Precautionary Wealth: Evidence from Households' Balance Sheets," The Review of Economics and Statistics, MIT Press, vol. 85(3), pages 586-604, August.
    3. Fredriksson, Peter & Holmlund, Bertil, 2001. "Optimal Unemployment Insurance in Search Equilibrium," Journal of Labor Economics, University of Chicago Press, vol. 19(2), pages 370-399, April.
    4. Casey B. Mulligan, "undated". "The Intertemporal Substitution of Work--What Does the Evidence Say?," University of Chicago - Population Research Center 95-11, Chicago - Population Research Center.
    5. Banks, James & Blundell, Richard & Tanner, Sarah, 1998. "Is There a Retirement-Savings Puzzle?," American Economic Review, American Economic Association, vol. 88(4), pages 769-788, September.
    6. Christopher A. Pissarides & Barbara Petrongolo, 2001. "Looking into the Black Box: A Survey of the Matching Function," Journal of Economic Literature, American Economic Association, vol. 39(2), pages 390-431, June.
    7. Ken Binmore & Ariel Rubinstein & Asher Wolinsky, 1986. "The Nash Bargaining Solution in Economic Modelling," RAND Journal of Economics, The RAND Corporation, vol. 17(2), pages 176-188, Summer.
    8. Dale T. Mortensen, 1977. "Unemployment Insurance and Job Search Decisions," ILR Review, Cornell University, ILR School, vol. 30(4), pages 505-517, July.
    9. Cahuc, Pierre & Lehmann, Etienne, 2000. "Should unemployment benefits decrease with the unemployment spell?," Journal of Public Economics, Elsevier, vol. 77(1), pages 135-153, July.
    10. Deaton, Angus, 1991. "Saving and Liquidity Constraints," Econometrica, Econometric Society, vol. 59(5), pages 1221-1248, September.
    11. Larry M. Ausubel & Raymond J. Deneckere, 1989. "Reputation in Bargaining and Durable Goods Monopoly," Levine's Working Paper Archive 201, David K. Levine.
    12. Rasmus Lentz, 2009. "Optimal Unemployment Insurance in an Estimated Job Search Model with Savings," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 12(1), pages 37-57, January.
    13. Melvyn Coles & Adrian Masters, 2006. "Optimal Unemployment Insurance in a Matching Equilibrium," Journal of Labor Economics, University of Chicago Press, vol. 24(1), pages 109-138, January.
    14. Gomes, Joao & Greenwood, Jeremy & Rebelo, Sergio, 2001. "Equilibrium unemployment," Journal of Monetary Economics, Elsevier, vol. 48(1), pages 109-152, August.
    15. David Card & Raj Chetty & Andrea Weber, 2007. "Cash-on-Hand and Competing Models of Intertemporal Behavior: New Evidence from the Labor Market," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(4), pages 1511-1560.
    16. Christiano, Lawrence J. & Fisher, Jonas D. M., 2000. "Algorithms for solving dynamic models with occasionally binding constraints," Journal of Economic Dynamics and Control, Elsevier, vol. 24(8), pages 1179-1232, July.
    17. Hubbard, R Glenn & Skinner, Jonathan & Zeldes, Stephen P, 1995. "Precautionary Saving and Social Insurance," Journal of Political Economy, University of Chicago Press, vol. 103(2), pages 360-399, April.
    18. J. J. McCall, 1970. "Economics of Information and Job Search," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 84(1), pages 113-126.
    19. Orazio P. Attanasio & Guglielmo Weber, 1993. "Consumption Growth, the Interest Rate and Aggregation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(3), pages 631-649.
    20. Wang, Cheng & Williamson, Stephen, 1996. "Unemployment insurance with moral hazard in a dynamic economy," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 44(1), pages 1-41, June.
    21. David Domeij & Martin Floden, 2006. "The Labor-Supply Elasticity and Borrowing Constraints: Why Estimates are Biased," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 242-262, April.
    22. Blundell, Richard & Macurdy, Thomas, 1999. "Labor supply: A review of alternative approaches," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 27, pages 1559-1695, Elsevier.
    23. Christopher D. Carroll & Andrew A. Samwick, 1998. "How Important Is Precautionary Saving?," The Review of Economics and Statistics, MIT Press, vol. 80(3), pages 410-419, August.
    24. John Y. Campbell & N. Gregory Mankiw, 1989. "Consumption, Income, and Interest Rates: Reinterpreting the Time Series Evidence," NBER Chapters, in: NBER Macroeconomics Annual 1989, Volume 4, pages 185-246, National Bureau of Economic Research, Inc.
    25. Davidson, Carl & Woodbury, Stephen A., 1997. "Optimal unemployment insurance," Journal of Public Economics, Elsevier, vol. 64(3), pages 359-387, June.
    26. Browning, Martin & Hansen, Lars Peter & Heckman, James J., 1999. "Micro data and general equilibrium models," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 8, pages 543-633, Elsevier.
    27. Hall, Robert E, 1988. "Intertemporal Substitution in Consumption," Journal of Political Economy, University of Chicago Press, vol. 96(2), pages 339-357, April.
    28. repec:eee:labchp:v:1:y:1986:i:c:p:3-102 is not listed on IDEAS
    29. repec:fth:harver:1435 is not listed on IDEAS
    30. S. Rao Aiyagari, 1994. "Uninsured Idiosyncratic Risk and Aggregate Saving," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 109(3), pages 659-684.
    31. Annette Vissing-Jorgensen, 2002. "Limited Asset Market Participation and the Elasticity of Intertemporal Substitution," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 825-853, August.
    32. Engen, Eric M. & Gruber, Jonathan, 2001. "Unemployment insurance and precautionary saving," Journal of Monetary Economics, Elsevier, vol. 47(3), pages 545-579, June.
    33. Raj Chetty, 2005. "Why do Unemployment Benefits Raise Unemployment Durations? Moral Hazard vs. Liquidity," NBER Working Papers 11760, National Bureau of Economic Research, Inc.
    34. Krueger, Alan B. & Meyer, Bruce D., 2002. "Labor supply effects of social insurance," Handbook of Public Economics, in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 4, chapter 33, pages 2327-2392, Elsevier.
    35. Masao Ogaki & Carmen M. Reinhart, 1998. "Measuring Intertemporal Substitution: The Role of Durable Goods," Journal of Political Economy, University of Chicago Press, vol. 106(5), pages 1078-1098, October.
    36. Ausubel, Lawrence M & Deneckere, Raymond J, 1989. "Reputation in Bargaining and Durable Goods Monopoly," Econometrica, Econometric Society, vol. 57(3), pages 511-531, May.
    37. Kennickell, Arthur & Lusardi, Annamaria, 2005. "Disentangling the importance of the precautionary saving motive," CFS Working Paper Series 2006/15, Center for Financial Studies (CFS).
    38. Miles S. Kimball & Matthew D. Shapiro, 2008. "Labor Supply: Are the Income and Substitution Effects Both Large or Both Small?," NBER Working Papers 14208, National Bureau of Economic Research, Inc.
    39. Javier Diaz-Gimenez & Vincenzo Quadrini & José-Víctor Ríos-Rull & Santiago Budria Rodriguez, 2002. "Updated facts on the U.S. distributions of earnings, income, and wealth," Quarterly Review, Federal Reserve Bank of Minneapolis, vol. 26(Sum), pages 2-35.
    40. Guvenen, Fatih, 2006. "Reconciling conflicting evidence on the elasticity of intertemporal substitution: A macroeconomic perspective," Journal of Monetary Economics, Elsevier, vol. 53(7), pages 1451-1472, October.
    41. Ben Malin, 2006. "Lower-Frequency Macroeconomic Fluctuations: Living Standards and Leisure," 2006 Meeting Papers 752, Society for Economic Dynamics.
    42. Earle, John S & Pencavel, John, 1990. "Hours of Work and Trade Unionism," Journal of Labor Economics, University of Chicago Press, vol. 8(1), pages 150-174, January.
    43. Mark Aguiar & Erik Hurst, 2005. "Consumption versus Expenditure," Journal of Political Economy, University of Chicago Press, vol. 113(5), pages 919-948, October.
    44. Browning, Martin & Crossley, Thomas F., 2001. "Unemployment insurance benefit levels and consumption changes," Journal of Public Economics, Elsevier, vol. 80(1), pages 1-23, April.
    45. Hansen, Gary D & Imrohoroglu, Ayse, 1992. "The Role of Unemployment Insurance in an Economy with Liquidity Constraints and Moral Hazard," Journal of Political Economy, University of Chicago Press, vol. 100(1), pages 118-142, February.
    46. Melvin Stephens, 2001. "The Long-Run Consumption Effects Of Earnings Shocks," The Review of Economics and Statistics, MIT Press, vol. 83(1), pages 28-36, February.
    47. Hopenhayn, Hugo A & Nicolini, Juan Pablo, 1997. "Optimal Unemployment Insurance," Journal of Political Economy, University of Chicago Press, vol. 105(2), pages 412-438, April.
    48. Heckman, James J, 1974. "Life Cycle Consumption and Labor Supply: An Explanation of the Relationship Between Income and Consumption Over the Life Cycle," American Economic Review, American Economic Association, vol. 64(1), pages 188-194, March.
    49. Luigi Pistaferri, 2003. "Anticipated and Unanticipated Wage Changes, Wage Risk, and Intertemporal Labor Supply," Journal of Labor Economics, University of Chicago Press, vol. 21(3), pages 729-754, July.
    50. Arthur J. Hosios, 1990. "On The Efficiency of Matching and Related Models of Search and Unemployment," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 57(2), pages 279-298.
    51. Tullio Jappelli, 1990. "Who is Credit Constrained in the U. S. Economy?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 105(1), pages 219-234.
    52. Altonji, Joseph G, 1986. "Intertemporal Substitution in Labor Supply: Evidence from Micro Data," Journal of Political Economy, University of Chicago Press, vol. 94(3), pages 176-215, June.
    53. Orazio P. Attanasio & James Banks & Sarah Tanner, 2002. "Asset Holding and Consumption Volatility," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 771-792, August.
    54. Shavell, Steven & Weiss, Laurence, 1979. "The Optimal Payment of Unemployment Insurance Benefits over Time," Journal of Political Economy, University of Chicago Press, vol. 87(6), pages 1347-1362, December.
    55. Hansen, Lars Peter & Singleton, Kenneth J, 1983. "Stochastic Consumption, Risk Aversion, and the Temporal Behavior of Asset Returns," Journal of Political Economy, University of Chicago Press, vol. 91(2), pages 249-265, April.
    56. McLaughlin, Kenneth J., 1995. "Intertemporal substitution and [lambda]-constant comparative statics," Journal of Monetary Economics, Elsevier, vol. 35(1), pages 193-213, February.
    57. Josep Pijoan-Mas, 2006. "Precautionary Savings or Working Longer Hours?," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 326-352, April.
    58. MaCurdy, Thomas E, 1981. "An Empirical Model of Labor Supply in a Life-Cycle Setting," Journal of Political Economy, University of Chicago Press, vol. 89(6), pages 1059-1085, December.
    59. Narayana Kocherlakota, 2004. "Figuring out the Impact of Hidden Savings on Optimal Unemployment Insurance," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 7(3), pages 541-554, July.
    60. Robert Shimer, 2005. "The Cyclical Behavior of Equilibrium Unemployment and Vacancies," American Economic Review, American Economic Association, vol. 95(1), pages 25-49, March.
    61. Baily, Martin Neil, 1978. "Some aspects of optimal unemployment insurance," Journal of Public Economics, Elsevier, vol. 10(3), pages 379-402, December.
    62. Pencavel, John, 1987. "Labor supply of men: A survey," Handbook of Labor Economics, in: O. Ashenfelter & R. Layard (ed.), Handbook of Labor Economics, edition 1, volume 1, chapter 1, pages 3-102, Elsevier.
    63. Ehrenberg, Ronald G & Oaxaca, Ronald L, 1976. "Unemployment Insurance, Duration of Unemployment, and Subsequent Wage Gain," American Economic Review, American Economic Association, vol. 66(5), pages 754-766, December.
    64. Jonathan Gruber, 1994. "The Consumption Smoothing Benefits of Unemployment Insurance," NBER Working Papers 4750, National Bureau of Economic Research, Inc.
    65. Eric M. Engen & Jonathan Gruber, 1995. "Unemployment Insurance and Precautionary Saving," NBER Working Papers 5252, National Bureau of Economic Research, Inc.
    66. John C. Ham & Kevin T. Reilly, 2002. "Testing Intertemporal Substitution, Implicit Contracts, and Hours Restriction Models of the Labor Market Using Micro Data," American Economic Review, American Economic Association, vol. 92(4), pages 905-927, September.
    67. Auray, Stéphane & Danthine, Samuel, 2005. "Bargaining Frictions and Hours Worked," IZA Discussion Papers 1722, Institute of Labor Economics (IZA).
    68. Flemming, J. S., 1978. "Aspects of optimal unemployment insurance : Search, leisure, savings and capital market imperfections," Journal of Public Economics, Elsevier, vol. 10(3), pages 403-425, December.
    69. Abowd, John M & Zellner, Arnold, 1985. "Estimating Gross Labor-Force Flows," Journal of Business & Economic Statistics, American Statistical Association, vol. 3(3), pages 254-283, June.
    70. Browning, Martin & Deaton, Angus & Irish, Margaret, 1985. "A Profitable Approach to Labor Supply and Commodity Demands over the Life-Cycle," Econometrica, Econometric Society, vol. 53(3), pages 503-543, May.
    71. Gruber, Jonathan, 1997. "The Consumption Smoothing Benefits of Unemployment Insurance," American Economic Review, American Economic Association, vol. 87(1), pages 192-205, March.
    72. Schechtman, Jack & Escudero, Vera L. S., 1977. "Some results on "an income fluctuation problem"," Journal of Economic Theory, Elsevier, vol. 16(2), pages 151-166, December.
    73. Judd, Kenneth L., 1992. "Projection methods for solving aggregate growth models," Journal of Economic Theory, Elsevier, vol. 58(2), pages 410-452, December.
    74. Atkinson, A.B., 1987. "Income maintenance and social insurance," Handbook of Public Economics, in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 2, chapter 13, pages 779-908, Elsevier.
    75. Makoto Nirei, 2006. "Quantifying Borrowing Constraints and Precautionary Savings," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 9(2), pages 353-363, April.
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    Cited by:

    1. Nakajima, Makoto, 2012. "A quantitative analysis of unemployment benefit extensions," Journal of Monetary Economics, Elsevier, vol. 59(7), pages 686-702.
    2. Wang, Cheng & Williamson, Stephen, 1996. "Unemployment insurance with moral hazard in a dynamic economy," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 44(1), pages 1-41, June.
    3. Mark Strøm Kristoffersen, 2012. "Business Cycle Dependent Unemployment Benefits with Wealth Heterogeneity and Precautionary Savings," Economics Working Papers 2012-19, Department of Economics and Business Economics, Aarhus University.
    4. Holt Richard, 2008. "Job Reallocation, Unemployment and Hours in a New Keynesian Model," The B.E. Journal of Macroeconomics, De Gruyter, vol. 8(1), pages 1-47, August.
    5. Ofer Setty & Yaniv Yedid-Levi, 2021. "On the Provision of Unemployment Insurance when Workers are Ex-Ante Heterogeneous," Journal of the European Economic Association, European Economic Association, vol. 19(1), pages 664-706.
    6. Mukoyama, Toshihiko, 2013. "Understanding the welfare effects of unemployment insurance policy in general equilibrium," Journal of Macroeconomics, Elsevier, vol. 38(PB), pages 347-368.

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    More about this item

    Keywords

    Unemployment insurance; Labor supply; Matching equilibrium; Self-insurance;
    All these keywords.

    JEL classification:

    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply
    • H00 - Public Economics - - General - - - General
    • J65 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment Insurance; Severance Pay; Plant Closings
    • E24 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity

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