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Depreciation Erodes the Coase Conjecture

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  • Karp, Larry

Abstract

If a durable good monopolist produces at constant marginal costs and the good depreciates, there exists a family of Strong Markov Perfect Equilibrium (SMPE) with an infinitesimal period of commitment. One member of this family entails instantaneous production of the level of stock produced in a competitive equilibrium; this is consistent with the Coase Conjecture. Other SMPE in the family entail steady state production at a stock level lower than in the competitive equilibrium. In these equilibria, there may be a jump to the steady state, or the steady state may be approached asymptotically. Monopoly profits are postive in these equilibria, and the Coase Conjecture fails. We contrast this result to other papers which use non-Markov strategies to construct multiple equilibria.

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Bibliographic Info

Paper provided by Department of Agricultural & Resource Economics, UC Berkeley in its series Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series with number qt1fs6j5nn.

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Date of creation: 01 Jan 1995
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Handle: RePEc:cdl:agrebk:qt1fs6j5nn

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Keywords: Coase Conjecture; Depreciation; Multiple Markov Equilibria;

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  1. Karp, Larry & Newbery, David M., 1993. "Intertemporal consistency issues in depletable resources," Handbook of Natural Resource and Energy Economics, in: A. V. Kneese† & J. L. Sweeney (ed.), Handbook of Natural Resource and Energy Economics, edition 1, volume 3, chapter 19, pages 881-931 Elsevier.
  2. Eric W. Bond & Larry Samuelson, 1984. "Durable Good Monopolies with Rational Expectations and Replacement Sales," RAND Journal of Economics, The RAND Corporation, vol. 15(3), pages 336-345, Autumn.
  3. Bulow, Jeremy I, 1982. "Durable-Goods Monopolists," Journal of Political Economy, University of Chicago Press, vol. 90(2), pages 314-32, April.
  4. Bond, Eric W. & Samuelson, Larry, 1987. "The Coase conjecture need not hold for durable good monopolies with depreciation," Economics Letters, Elsevier, vol. 24(1), pages 93-97.
  5. Coase, Ronald H, 1972. "Durability and Monopoly," Journal of Law and Economics, University of Chicago Press, vol. 15(1), pages 143-49, April.
  6. Tsutsui, Shunichi & Mino, Kazuo, 1990. "Nonlinear strategies in dynamic duopolistic competition with sticky prices," Journal of Economic Theory, Elsevier, vol. 52(1), pages 136-161, October.
  7. Faruk Gul & Hugo Sonnenschein & Robert Wilson, 2010. "Foundations of Dynamic Monopoly and the Coase Conjecture," Levine's Working Paper Archive 232, David K. Levine.
  8. Driskill, Robert, 1997. "Durable-Goods Monopoly, Increasing Marginal Cost and Depreciation," Economica, London School of Economics and Political Science, vol. 64(253), pages 137-54, February.
  9. Dutta, Prajit K & Sundaram, Rangarajan K, 1993. "The Tragedy of the Commons?," Economic Theory, Springer, vol. 3(3), pages 413-26, July.
  10. Olsen, Trond E., 1992. "Durable goods monopoly, learning by doing and the Coase conjecture," European Economic Review, Elsevier, vol. 36(1), pages 157-177, January.
  11. Bagnoli, Mark & Salant, Stephen W & Swierzbinski, Joseph E, 1989. "Durable-Goods Monopoly with Discrete Demand," Journal of Political Economy, University of Chicago Press, vol. 97(6), pages 1459-78, December.
  12. Nancy L. Stokey, 1981. "Rational Expectations and Durable Goods Pricing," Bell Journal of Economics, The RAND Corporation, vol. 12(1), pages 112-128, Spring.
  13. Bulow, Jeremy, 1986. "An Economic Theory of Planned Obsolescence," The Quarterly Journal of Economics, MIT Press, vol. 101(4), pages 729-49, November.
  14. Malueg, David A & Solow, John L, 1990. "Monopoly Production of Durable Exhaustible Resources," Economica, London School of Economics and Political Science, vol. 57(225), pages 29-47, February.
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