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A New Keynesian Model with Unemployment

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Author Info
Olivier Blanchard () (Massachusetts Institute of Technology)
Jordi Galí () (Universitat Pompeu Fabra)

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Abstract

We develop a utility based model of fluctuations, with nominal rigidities, and unemployment. In doing so, we combine two strands of research: the New Keynesian model with its focus on nominal rigidities, and the Diamond-Mortensen-Pissarides model, with its focus on labor market frictions and unemployment. In developing this model, 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 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 real wage rigidities. We show the nature of the tradeoff between inflation and unemployment stabilization, and we draw the implications for optimal monetary policy.

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Paper provided by Center for Financial Studies in its series CFS Working Paper Series with number 2007/08.

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Length: 46 pages
Date of creation: 15 Feb 2007
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Handle: RePEc:cfs:cfswop:wp200708

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Related research
Keywords: New Keynesian Model Labor Market Frictions Search Model Unemployment Sticky Prices Real Wage Rigidities

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Find related papers by JEL classification:
E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General

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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.:
  1. Antonella Trigari, 2004. "Equilibrium unemployment, job flows and inflation dynamics," Working Paper Series 304, European Central Bank. [Downloadable!]
  2. Kai Christoffel & Tobias Linzert, 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). [Downloadable!]
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  3. Antonella Trigari, . "The Role of Search Frictions and Bargaining for Inflation Dynamics," Working Papers 304, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University. [Downloadable!]
  4. 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!] (restricted)
  5. Robert E. Hall, 2005. "Employment Fluctuations with Equilibrium Wage Stickiness," American Economic Review, American Economic Association, vol. 95(1), pages 50-65, March. [Downloadable!] (restricted)
  6. 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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  7. Summers, Lawrence H, 1991. " The Scientific Illusion in Empirical Macroeconomics," Scandinavian Journal of Economics, Blackwell Publishing, vol. 93(2), pages 129-48.
  8. Cheron, Arnaud & Langot, Francois, 2000. "The Phillips and Beveridge curves revisited," Economics Letters, Elsevier, vol. 69(3), pages 371-376, December. [Downloadable!] (restricted)
    Other versions:
  9. Barro, Robert J, 1988. "The Persistence of Unemployment," American Economic Review, American Economic Association, vol. 78(2), pages 32-37, May. [Downloadable!] (restricted)
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