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Labour Markets and Monetary Policy: A New Keynesian Model with Unemployment

  • Blanchard, Olivier J
  • Galí, Jordi

We construct a utility-based model of fluctuations, with nominal rigidities and unemployment, and draw its implications for the unemployment-inflation trade-off and for the conduct of monetary policy. We proceed in two steps. We first leave nominal rigidities aside. We show that, under a standard utility specification, productivity shocks have no effect on unemployment in the constrained efficient allocation. We then focus on the implications of alternative real wage setting mechanisms for fluctuations in unemployment. We show the role of labour market frictions and real wage rigidities in determining the effects of productivity shocks on unemployment. We then introduce nominal rigidities in the form of staggered price setting by firms. We derive the relation between inflation and unemployment and discuss how it is influenced by the presence of labour market frictions and real wage rigidities. We show the nature of the trade-off between inflation and unemployment stabilization, and its dependence on labour market characteristics. We draw the implications for optimal monetary policy.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 6765.

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Date of creation: Mar 2008
Date of revision:
Handle: RePEc:cpr:ceprdp:6765
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  1. Trigari, Antonella, 2004. "Equilibrium unemployment, job flows and inflation dynamics," Working Paper Series 0304, European Central Bank.
  2. Faia, Ester, 2006. "Optimal monetary policy rules with labor market frictions," Working Paper Series 0698, European Central Bank.
  3. Christoffel, Kai & Linzert, Tobias, 2005. "The Role of Real Wage Rigidity and Labor Market Frictions for Unemployment and Inflation Dynamics," IZA Discussion Papers 1896, Institute for the Study of Labor (IZA).
  4. Luca Sala & Antonella Trigari & Mark Gertler, 2007. "An Estimated Monetary DSGE Model with Unemployment and Staggered Nominal Wage Bargaining," 2007 Meeting Papers 353, Society for Economic Dynamics.
  5. Carlos Thomas, 2006. "Search and Matching Frictions and Optimal Monetary Policy," CEP Discussion Papers dp0743, Centre for Economic Performance, LSE.
  6. Marcus Hagedorn & Iourii Manovskii, 2005. "The Cyclical Behavior of Equilibrium Unemployment and Vacancies Revisited," 2005 Meeting Papers 460, Society for Economic Dynamics.
  7. Gali, Jordi & Gertler, Mark, 1999. "Inflation dynamics: A structural econometric analysis," Journal of Monetary Economics, Elsevier, vol. 44(2), pages 195-222, October.
  8. Andrew Levin & Christopher J. Erceg & Dale W. Henderson, 1999. "Optimal Monetary Policy with Staggered Wage and Price Contracts," Computing in Economics and Finance 1999 1151, Society for Computational Economics.
  9. Mark Bils & Peter J. Klenow, 2002. "Some Evidence on the Importance of Sticky Prices," NBER Working Papers 9069, National Bureau of Economic Research, Inc.
  10. Andolfatto, David, 1996. "Business Cycles and Labor-Market Search," American Economic Review, American Economic Association, vol. 86(1), pages 112-32, March.
  11. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  12. Olivier Blanchard & Jordi Galí, 2015. "Real Wage Rigidities and the New Keynesian Model," Working Papers 243, Barcelona Graduate School of Economics.
  13. 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.
  14. Merz, Monika, 1995. "Search in the labor market and the real business cycle," Journal of Monetary Economics, Elsevier, vol. 36(2), pages 269-300, November.
  15. Emi Nakamura & Jón Steinsson, 2008. "Five Facts about Prices: A Reevaluation of Menu Cost Models," The Quarterly Journal of Economics, MIT Press, vol. 123(4), pages 1415-1464, November.
  16. Moyen, Stephane & Sahuc, Jean-Guillaume, 2005. "Incorporating labour market frictions into an optimising-based monetary policy model," Economic Modelling, Elsevier, vol. 22(1), pages 159-186, January.
  17. Barro, Robert J, 1988. "The Persistence of Unemployment," American Economic Review, American Economic Association, vol. 78(2), pages 32-37, May.
  18. Antonella Trigari, 2006. "The Role of Search Frictions and Bargaining for Inflation Dynamics," Working Papers 304, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  19. Robert Shimer, 2005. "The Cyclical Behavior of Equilibrium Unemployment and Vacancies," American Economic Review, American Economic Association, vol. 95(1), pages 25-49, March.
  20. Rafael Domenech & Javier Andres & Javier Ferri, 2006. "Price Rigidity and the Volatility of Vacancies and Unemployment," Working Papers 0601, International Economics Institute, University of Valencia.
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