The Cyclical Behavior of Equilibrium Unemployment and Vacancies – A Comment
AbstractThe 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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Bibliographic InfoPaper provided by Department of Economics, University of Bristol, UK in its series Bristol Economics Discussion Papers with number 05/573.
Length: 22 pages
Date of creation: Jan 2005
Date of revision:
Unemployment; on-the-job search; worker flows; job flows; matching.;
Find related papers by JEL classification:
- J64 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Unemployment: Models, Duration, Incidence, and Job Search
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