Fixed Costs: The Demise of Marginal q
AbstractThe standard version of q theory, in which investment is positively related to marginal q, breaks down in the presence of fixed costs of adjustment. With fixed costs, investment is a non-monotonic function of q. Therefore its inverse, which is the traditional investment function, does not exist. Depending upon auxiliary assumptions, the correlation between investment and marginal q can be either positive or negative. Given certain homogeneity assumptions, a version of the theory based on average q still holds, although under the same assumptions profits and sales perform as well as average q. More generally, q is no longer a sufficient statistic.
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Bibliographic InfoPaper provided by Harvard - Institute of Economic Research in its series Harvard Institute of Economic Research Working Papers with number 1765.
Date of creation: 1996
Date of revision:
Other versions of this item:
- Caballero, R.J., 1996. "Fixed Costs: The Demise of Marginal q," Working papers 96-14, Massachusetts Institute of Technology (MIT), Department of Economics.
- Ricardo J. Caballero & John V. Leahy, 1996. "Fixed Costs: The Demise of Marginal q," NBER Working Papers 5508, National Bureau of Economic Research, Inc.
- E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Capital; Investment; Capacity
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