Models of Energy Use: Putty-Putty Versus Putty-Clay

38 Pages Posted: 24 Nov 2000 Last revised: 13 Nov 2014

See all articles by Andrew Atkeson

Andrew Atkeson

University of California, Los Angeles (UCLA) - Department of Economics; National Bureau of Economic Research (NBER)

Patrick J. Kehoe

Federal Reserve Bank of Minneapolis - Research Department; University of Minnesota - Twin Cities - Department of Economics; National Bureau of Economic Research (NBER)

Date Written: August 1994

Abstract

In this paper, we build a version of the putty-clay model in which there is a large variety of types of capital goods which are combined with energy in different fixed proportions. Our principal contribution is to establish easily checked conditions under which the problem of solving for the equilibrium of the model economy reduces to a dynamic programming problem with only two endogenous state variables, regardless of the number of different types of capital goods that are allowed. In appropriate applications, this result allows us to avoid the 'curse of dimensionality' that typically plagues attempts to analyze the dynamics of economies with a wide variety of capital goods and binding non-negativity constraints on investment. We apply these results to study the equilibrium dynamics of value-added, investment, wages, and energy use in a simple model of energy use with putty-clay capital.

Suggested Citation

Atkeson, Andrew G. and Kehoe, Patrick J., Models of Energy Use: Putty-Putty Versus Putty-Clay (August 1994). NBER Working Paper No. w4833. Available at SSRN: https://ssrn.com/abstract=250354

Andrew G. Atkeson (Contact Author)

University of California, Los Angeles (UCLA) - Department of Economics ( email )

Box 951477
Los Angeles, CA 90095-1477
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
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Patrick J. Kehoe

Federal Reserve Bank of Minneapolis - Research Department ( email )

90 Hennepin Avenue
Minneapolis, MN 55480
United States
612-204-5525 (Phone)
612-204-5515 (Fax)

University of Minnesota - Twin Cities - Department of Economics ( email )

271 19th Avenue South
Minneapolis, MN 55455
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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