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The Shimer puzzle and the identification of productivity shocks

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Author Info
Regis Barnichon
Abstract

Shimer (2005) argues that the Mortensen-Pissarides (MP) model of unemployment lacks an amplification mechanism because it generates less than 10 percent of the observed business cycle fluctuations in unemployment given labor productivity shocks of plausible magnitude. This paper argues that part of the problem lies with the identification of productivity shocks. Because of the endogeneity of measured labor productivity, filtering out the trend component as in Shimer (2005) may not correctly identify the shocks driving unemployment. Using a New-Keynesian framework to control for the endogeneity of productivity, this paper estimates that the MP model can account for a third, and possibly as much as 60 percent, of fluctuations in labor market variables.

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Paper provided by Board of Governors of the Federal Reserve System (U.S.) in its series Finance and Economics Discussion Series with number 2009-4.

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Date of creation: 2009
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Handle: RePEc:fip:fedgfe:2009-4

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Keywords: Labor market ; Unemployment ; Labor productivity;

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  1. Dale T. Mortensen & Éva Nagypál, 2005. "More on Unemployment and Vacancy Fluctuations," IZA Discussion Papers 1765, Institute for the Study of Labor (IZA). [Downloadable!]
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  2. Robert Shimer, 2005. "The Cyclical Behavior of Equilibrium Unemployment and Vacancies," American Economic Review, American Economic Association, vol. 95(1), pages 25-49, March. [Downloadable!]
  3. Burnside, Craig & Eichenbaum, Martin & Rebelo, Sergio, 1993. "Labor Hoarding and the Business Cycle," Journal of Political Economy, University of Chicago Press, vol. 101(2), pages 245-73, April. [Downloadable!] (restricted)
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  4. Jordi Gali, 1999. "Technology, Employment, and the Business Cycle: Do Technology Shocks Explain Aggregate Fluctuations?," American Economic Review, American Economic Association, vol. 89(1), pages 249-271, March. [Downloadable!] (restricted)
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  5. Mortensen, Dale T & Pissarides, Christopher A, 1994. "Job Creation and Job Destruction in the Theory of Unemployment," Review of Economic Studies, Blackwell Publishing, vol. 61(3), pages 397-415, July. [Downloadable!] (restricted)
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  6. Robert E. Hall & Paul R. Milgrom, 2008. "The Limited Influence of Unemployment on the Wage Bargain," American Economic Review, American Economic Association, vol. 98(4), pages 1653-74, September. [Downloadable!]
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  7. Bils, Mark & Cho, Jang-Ok, 1994. "Cyclical factor utilization," Journal of Monetary Economics, Elsevier, vol. 33(2), pages 319-354, April. [Downloadable!] (restricted)
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  8. Susanto Basu & Miles S. Kimball, 1997. "Cyclical Productivity with Unobserved Input Variation," NBER Working Papers 5915, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  9. Robert Shimer, 2004. "The Consequences of Rigid Wages in Search Models," Journal of the European Economic Association, MIT Press, vol. 2(2-3), pages 469-479, 04/05. [Downloadable!] (restricted)
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  10. Robert E. Hall, 2005. "Employment Fluctuations with Equilibrium Wage Stickiness," American Economic Review, American Economic Association, vol. 95(1), pages 50-65, March. [Downloadable!]
  11. Krause, Michael U. & Lubik, Thomas A., 2007. "The (ir)relevance of real wage rigidity in the New Keynesian model with search frictions," Journal of Monetary Economics, Elsevier, vol. 54(3), pages 706-727, April. [Downloadable!] (restricted)
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