2005, English, Article, Working paper edition: Real wage rigidities and the new Keynesian model Olivier Blanchard [and] Jordi Gali [electronic resource] Olivier Blanchard

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Physical Description
  • 36 p. ;
Published
  • Cambridge, MA Massachusetts Institute of Technology, Dept. of Economics 2005
Language
  • English

Edition details

Title
  • Real wage rigidities and the new Keynesian model Olivier Blanchard [and] Jordi Gali
Author
  • Olivier Blanchard
Other Authors
  • Gal,? Jordi, 1961-
  • Massachusetts Institute of Technology. Dept. of Economics
Published
  • Cambridge, MA Massachusetts Institute of Technology, Dept. of Economics 2005
Medium
  • [electronic resource]
Physical Description
  • 36 p. ;
Series
Summary
  • Most central banks perceive a trade-off between stabilizing inflation and stabilizing the gap between output and desired output. However, the standard new Keynesian framework implies no such trade-off. In that framework, stabilizing inflation is equivalent to stabilizing the welfare-relevant output gap. In this paper, we argue that this property of the new Keynesian framework, which we call the divine coincidence, is due to a special feature of the model: the absence of non trivial real imperfections. We focus on one such real imperfection, namely, real wage rigidities. When the baseline new Keynesian model is extended to allow for real wage rigidities, the divine coincidence disappears, and central banks indeed face a trade-off between stabilizing inflation and stabilizing the welfare-relevant output gap. We show that not only does the extended model have more realistic normative implications, but it also has appealing positive properties. In particular, it provides a natural interpretation for the dynamic inflation - unemployment relation found in the data. Keywords: oil price shocks, inflation targeting, monetary policy, inflation inertia. JEL Classifications: E32, E50.
Notes
  • "October 31, 2005"--T.p. -- "October 2005 (First draft: April 2005)--Abstract, p. 1. "Prepared for the FRB/​JMCB conference on "Quantitative Evidence on Price Determination," Washington, D.C., September 29-30, 2005"--P. 1 Includes bibliographical references (p. 27-29). Abstract in HTML and working paper for download in PDF available via World Wide Web at the Social Science Research Network.
Language
  • English
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