There is an ongoing debate on whether the recent surge in unemployment in the US is due to cyclical or structural factors. The distinction is important because the policies required to reduce each type of unemployment are very dierent. We use a novel approach to empirically quantify the extent of structural unemployment and to shed light on its sources. We propose a simple model of a segmented labor market. Within each segment, search frictions generate unemployment. In addition, there is structural unemployment due to heterogeneity across segments. Four different types of adjustment costs give rise to structural unemployment: worker mobility costs, job mobility costs, wage setting frictions, and heterogeneity in matching efficiency. We construct data on job and worker surplus and job and worker finding rates and use them to estimate these adjustment costs and assess the contribution of each to unemployment. We find that, across US states, worker mobility costs are larger than job mobility costs. Across industries, mobility costs are very high for both workers and jobs. We then construct a time series for structural unemployment and its components. This helps us to understand the extent, to which unemployment is driven by structural factors in the current and past recessions.
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- Dale Mortensen & Eva Nagypal, 2007.
"More on Unemployment and Vacancy Fluctuations,"
Review of Economic Dynamics,
Elsevier for the Society for Economic Dynamics, vol. 10(3), pages 327-347, July.
- Mortensen, Dale T. & Nagypál, Éva, 2005. "More on Unemployment and Vacancy Fluctuations," IZA Discussion Papers 1765, Institute for the Study of Labor (IZA).
- Dale T. Mortensen & Eva Nagypal, 2005. "More on Unemployment and Vacancy Fluctuations," NBER Working Papers 11692, National Bureau of Economic Research, Inc.
- Dale T. Mortensen, 2005. "More on Unemployment and Vacancy Fluctuations," 2005 Meeting Papers 326, Society for Economic Dynamics.
- Regis Barnichon & Andrew Figura, 2010. "What drives movements in the unemployment rate? a decomposition of the Beveridge curve," Finance and Economics Discussion Series 2010-48, Board of Governors of the Federal Reserve System (U.S.).
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