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Reflection on Microeconomic Adjustment Hazard Approach

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  • Edlira Narazani

    (University of Turin)

Abstract

This paper studies the way the adjustment process takes place in labor demand when it is expressed as a Cox proportional hazard model. I use a simulated firm-level panel data based on a threshold model with periods of high and low frequency of employment fluctuations, which is consistent with the infrequent way the adjustment process takes place according to the new theories of adjustment. I model the probability that a firm adjusts its employment level during a time-period as a Cox proportional hazard function dependent on the deviation of its actual employment value variable from its target. I show that the aggregate employment change, based on a high proportion of firms experiencing large employment fluctuations, could be very well represented by the Cox proportional hazard and also could be very well approximated by the empirical mean of the product of the hazard function and the deviations. On the other hand, I show that the aggregate employment change based on a very low proportion of firms facing large employment adjustment can be well represented by a quadratic (nonlinear) adjustment hazard. Finally, I try to conclude that in order to construct a measure of deviation from the target level (which is the state variable of the model) the regression of the employment fluctuation on the wage fluctuation could be more helpful than the regression of the employment fluctuation on the hours fluctuation.

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File URL: http://128.118.178.162/eps/lab/papers/0410/0410011.pdf
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Bibliographic Info

Paper provided by EconWPA in its series Labor and Demography with number 0410011.

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Length: 36 pages
Date of creation: 28 Oct 2004
Date of revision:
Handle: RePEc:wpa:wuwpla:0410011

Note: Type of Document - pdf; pages: 36
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Web page: http://128.118.178.162

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  1. Steven J. Davis & John Haltiwanger, 1996. "On the Driving Forces Behind Cyclical Movement, in Employment and Job Reallocation," NBER Working Papers 5775, National Bureau of Economic Research, Inc.
  2. Caplin, A. & Leahy, J., 1989. "State-Dependent Pricing And The Dynamics Of Money And Output," Discussion Papers 1989_32, Columbia University, Department of Economics.
  3. Caplin, Andrew S & Spulber, Daniel F, 1987. "Menu Costs and the Neutrality of Money," The Quarterly Journal of Economics, MIT Press, vol. 102(4), pages 703-25, November.
  4. Hamermesh, Daniel S, 1989. "Labor Demand and the Structure of Adjustment Costs," American Economic Review, American Economic Association, vol. 79(4), pages 674-89, September.
  5. Hamermesh, Daniel S & Pfann, Gerard Antonie, 1996. "Adjustment Costs in Factor Demand," CEPR Discussion Papers 1371, C.E.P.R. Discussion Papers.
  6. Steven J. Davis & John Haltiwanger, 1990. "Gross Job Creation and Destruction: Microeconomic Evidence and Macroeconomic Implications," NBER Chapters, in: NBER Macroeconomics Annual 1990, Volume 5, pages 123-186 National Bureau of Economic Research, Inc.
  7. Caplin, Andrew S, 1985. "The Variability of Aggregate Demand with (S, s) Inventory Policies," Econometrica, Econometric Society, vol. 53(6), pages 1395-1409, November.
  8. Ricardo J. Caballero & Eduardo Engel & John Haltiwanger, 1996. "Aggregate Employment Dynamics: Building from Microeconomic Evidence," Documentos de Trabajo 6, Centro de Economía Aplicada, Universidad de Chile.
  9. Steven J. Davis & John C. Haltiwanger & Scott Schuh, 1998. "Job Creation and Destruction," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262540932, December.
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