The Cyclical Behavior of Equilibrium Unemployment and Vacancies – A Comment

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The Cyclical Behavior of Equilibrium Unemployment and Vacancies – A Comment

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Simon Burgess
Helene Turon ()

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Abstract

The Mortensen-Pissarides model is an attractive model because it is tractable, delivers some intuitive comparative statics and permits policy analysis. However, Shimer (2005) shows that the model generates far too little volatility in its key variables - unemployment and vacancies - relative to the variation in the shock variables. Shimer identifes the flexibility of wages as the key issue. In this Comment, we show that it is possible to generate suffcient volatility in unemployment and vacancies whilst retaining the standard wage determination process. We set out a model with two important changes from the Mortensen-Pissarides approach: job search by the employed is allowed, and the vacancy creation condition is changed to allow churning of workers. Calibrating the model to UK data, we show that our model can produce volatility in the unemployment and vacancy series to match the data; we confirm for the UK that the Mortensen-Pissarides model cannot, as shown by Shimer for the US.

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Paper provided by Department of Economics, University of Bristol, UK in its series Bristol Economics Discussion Papers with number 05/573.

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Length: 22 pages
Date of creation: Jan 2005
Date of revision:
Handle: RePEc:bri:uobdis:05/573

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Find related papers by JEL classification:
J64 - Labor and Demographic Economics - - Mobility, Unemployment, and Vacancies - - - Unemployment: Models, Duration, Incidence, and Job Search

This paper has been announced in the following NEP Reports:

NEP-ALL-2005-06-27 (All new papers)
NEP-DGE-2005-06-27 (Dynamic General Equilibrium)

References listed on IDEAS
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Stephen Nickell & Patricia Jones & Glenda Quintini, 2002. "A Picture of Job Insecurity Facing British Men," Economic Journal, Royal Economic Society, vol. 112(476), pages 1-27, January. [Downloadable!] (restricted)
Fabien Postel-Vinay & Jean-Marc Robin, 2002. "Equilibrium Wage Dispersion with Worker and Employer Heterogeneity," Econometrica, Econometric Society, vol. 70(6), pages 2295-2350, November. [Downloadable!] (restricted)
Other versions:
- Postel-Vinay, Fabien & Robin, Jean-Marc, 2002. "Equilibrium Wage Dispersion with Worker and Employer Heterogeneity," CEPR Discussion Papers 3548, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
Den Haan, Wouter & Haefke, Christian & Ramey, Gary, 2001. "Shocks and Institutions in a Job Matching Model," CEPR Discussion Papers 2970, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
Other versions:
- Wouter den Haan & Christian Haefke & Garey Ramey, 2001. "Shocks and Institutions in a Job Matching Model," University of California at San Diego, Economics Working Paper Series 2001-14, Department of Economics, UC San Diego. [Downloadable!]
- Christian Haefke, 2001. "Shocks and Institutions in a Job Matching Model," Economics Working Papers 568, Department of Economics and Business, Universitat Pompeu Fabra, revised Aug 2001. [Downloadable!]
- Wouter Den Haan & Christian Haefke & Garey Ramey, 2001. "Shocks and Institutions in a Job Matching Model," NBER Working Papers 8463, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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!]
Eriksson, Stefan & Gottfries, Nils, 2005. "Ranking of job applicants, on-the-job search, and persistent unemployment," Labour Economics, Elsevier, vol. 12(3), pages 407-428, June. [Downloadable!] (restricted)
Other versions:
- Eriksson, Stefan & Gottfries, Nils, 2000. "Ranking of Job Applicants, On-the-job Search and Persistent Unemployment," Working Paper Series 2000:3, Uppsala University, Department of Economics. [Downloadable!]
- Eriksson, S. & Gottfries, N., 2000. "Ranking of Job Applicants, On-the-Job Search and Persistent Unemployment," Papers 2000:3, Uppsala - Working Paper Series.
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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)
Other versions:
- Dale T. Mortensen & Christopher A. Pissarides, 1993. "Job Creation and Job Destruction in the Theory of Unemployment," CEP Discussion Papers dp0110, Centre for Economic Performance, LSE.
Mortensen, Dale T. & Pissarides, Christopher A., 1999. "New developments in models of search in the labor market," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 39, pages 2567-2627 Elsevier. [Downloadable!] (restricted)
Other versions:
- Mortensen, Dale T & Pissarides, Christopher, 1999. "New Developments in Models of Search in the Labour Market," CEPR Discussion Papers 2053, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
Simon Burgess & Helene Turon, 2005. "Worker Flows, Job Flows and Unemployment in a Matching Model," Bristol Economics Discussion Papers 05/572, Department of Economics, University of Bristol, UK. [Downloadable!]
Jovanovic, Boyan, 1979. "Job Matching and the Theory of Turnover," Journal of Political Economy, University of Chicago Press, vol. 87(5), pages 972-90, October. [Downloadable!] (restricted)
Other versions:
- Thomas Sargent, . "Matlab code for Jovanovic's matching model," QM&RBC Codes 24, Quantitative Macroeconomics & Real Business Cycles. [Downloadable!]
Burgess, Simon M, 1993. "A Model of Competition between Unemployed and Employed Job Searchers: An Application to the Unemployment Outflow Rate in Britain," Economic Journal, Royal Economic Society, vol. 103(420), pages 1190-204, September. [Downloadable!] (restricted)
Pissarides, Christopher A, 1994. "Search Unemployment with On-the-Job Search," Review of Economic Studies, Blackwell Publishing, vol. 61(3), pages 457-75, July. [Downloadable!] (restricted)
Other versions:
- Christopher A. Pissarides, 1992. "Search Unemployment with on-the-job Search," CEP Discussion Papers dp0074, Centre for Economic Performance, LSE.

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