Many kinds of economic behavior involve discrete and occasional individual choices. Despite this, econometric partial adjustment models perform relatively well at the aggregate level. Analyzing the classic employment adjustment problem, we show how such microeconomic adjustment is well described by a new form of partial adjustment model that aggregates the actions of heterogeneous producers. ; We develop a model where individual establishments infrequently alter the sizes of their workforces because such adjustments involve fixed costs. In the market equilibrium, employment responses to aggregate disturbances include changes both in target employments selected by individual establishments and in the measure of establishments actively undertaking adjustment. Yet the model retains a partial adjustment flavor in its aggregate responses. Moreover, in contrast to existing discrete adjustment models, our generalized partial adjustment model is sufficiently tractable to allow general equilibrium analysis, and it naturally extends to accommodate persistent differences in productivity across establishments in general equilibrium.
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Paper provided by Federal Reserve Bank of Minneapolis in its series Staff Report with number
327.
Robert G. King & Julia K. Thomas, 2006.
"Partial Adjustment Without Apology,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 47(3), pages 779-809, 08.
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Lucas, Robert E, Jr & Prescott, Edward C, 1971.
"Investment Under Uncertainty,"
Econometrica,
Econometric Society, vol. 39(5), pages 659-81, September.
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King, Robert G. & Rebelo, Sergio T., 1999.
"Resuscitating real business cycles,"
Handbook of Macroeconomics,
in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 14, pages 927-1007
Elsevier.
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