Do Job Destruction Shocks Matter in the Theory of Unemployment?
American Economic Journal: Macroeconomics
vol. 10,
no. 3, July 2018
(pp. 118-36)
Abstract
Because the data show that market tightness is not orthogonal to unemployment, this paper identifies the many empirical difficulties caused by adopting the free entry of vacancies assumption in the Diamond-Mortensen-Pissarides (DMP) framework. Relaxing the free entry assumption and using Simulated Method of Moments (SMM) finds the vacancy creation process is less than infinitely elastic. Because a recession-leading job separation shock then causes vacancies to fall as unemployment increases, the ad hoc restriction to zero job separation shocks (to generate Beveridge curve dynamics) becomes redundant. In contrast to standard arguments, the calibrated model finds the job separation process drives unemployment volatility over the cycle.Citation
Coles, Melvyn G., and Ali Moghaddasi Kelishomi. 2018. "Do Job Destruction Shocks Matter in the Theory of Unemployment?" American Economic Journal: Macroeconomics, 10 (3): 118-36. DOI: 10.1257/mac.20150040Additional Materials
JEL Classification
- E24 Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
- E32 Business Fluctuations; Cycles
- J24 Human Capital; Skills; Occupational Choice; Labor Productivity
- J63 Labor Turnover; Vacancies; Layoffs
- J64 Unemployment: Models, Duration, Incidence, and Job Search
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