Fixed Costs: The Demise of Marginal q
The 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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- Andrew B. Abel & Olivier J. Blanchard, 1983.
"The Present Value of Profits and Cyclical Movements in Investment,"
NBER Working Papers
1122, National Bureau of Economic Research, Inc.
- Abel, Andrew B & Blanchard, Olivier J, 1986. "The Present Value of Profits and Cyclical Movements in Investment," Econometrica, Econometric Society, vol. 54(2), pages 249-73, March.
- Gilchrist, S. & Himmelberg, C.P., 1995.
"Evidence on the Role of Cash Flow for Investment,"
95-29, Columbia - Graduate School of Business.
- Simon Gilchrist & Charles P. Himmelberg, 1993. "Evidence on the role of cash flow for investment," Finance and Economics Discussion Series 93-7, Board of Governors of the Federal Reserve System (U.S.).
- Simon Gilchrist & Charles P. Himmelberg, 1995. "Evidence on the Role of Cash Flow for Investment," Working Papers 95-01, New York University, Leonard N. Stern School of Business, Department of Economics.
- Russell Cooper & John Haltiwanger & Laura Power, 1995.
"Machine Replacement and the Business Cycle: Lumps and Bumps,"
0062, Boston University - Industry Studies Programme.
- John Haltiwanger & Russell Cooper & Laura Power, 1999. "Machine Replacement and the Business Cycle: Lumps and Bumps," American Economic Review, American Economic Association, vol. 89(4), pages 921-946, September.
- Russell Cooper & John Haltiwanger & Laura Power, 1995. "Machine Replacement and the Business Cycle: Lumps and Bumps," NBER Working Papers 5260, National Bureau of Economic Research, Inc.
- Fumio Hayashi, 1981.
"Tobin's Marginal q and Average a : A Neoclassical Interpretation,"
457, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Hayashi, Fumio, 1982. "Tobin's Marginal q and Average q: A Neoclassical Interpretation," Econometrica, Econometric Society, vol. 50(1), pages 213-24, January.
- Robert P. Flood & Peter M. Garber, 1991. "The Linkage Between Speculative Attack and Target Zone Models of Exchange Rates," The Quarterly Journal of Economics, Oxford University Press, vol. 106(4), pages 1367-1372.
- Mark E. Doms & Timothy Dunne, 1998.
"Capital Adjustment Patterns in Manufacturing Plants,"
Review of Economic Dynamics,
Elsevier for the Society for Economic Dynamics, vol. 1(2), pages 409-429, April.
- Mark Doms & Timothy Dunne, 1994. "Capital Adjustment Patterns in Manufacturing Plants," Working Papers 94-11, Center for Economic Studies, U.S. Census Bureau.
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