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Public Capital and Private Investment, a Real Option Approach

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  • Bruno de Oliveira Cruz
  • Aude Pommeret

Abstract

In this paper, we extend the usual models of irreversible investment underuncertainty by introducing the stock of public capital as an input for the privatesector. Public investment takes place in a stochastic environment. Public capital thenincreases the productivity of private capital which is assumed to be fully irreversible.In our model, the government has an intertemporal budget constraint, i.e. taxes arecollected each period to fund the public debt. We provide a partial equilibriumanalysis, as it is standard in models of irreversible investment under uncertainty. Evenunder uncertainty, the optimal tax rate is then constant and does not depend on thesize of uncertainty, it is exactly the same as the one that would prevail in adeterministic world. We show that the government has an insurance role since itremoves part of the uncertainty faced by the firm.

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Bibliographic Info

Paper provided by Instituto de Pesquisa Econômica Aplicada - IPEA in its series Discussion Papers with number 1177.

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Length: 27 pages
Date of creation: Apr 2006
Date of revision:
Handle: RePEc:ipe:ipetds:1177

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  1. Zhu, Xiaodong, 1992. "Optimal fiscal policy in a stochastic growth model," Journal of Economic Theory, Elsevier, vol. 58(2), pages 250-289, December.
  2. Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
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  5. BARRIOS, Salvador & BERTINELLI, Luisito & STROBL, Eric, 2003. "Dry times in Africa: Rainfall and Africa's growth performance," CORE Discussion Papers 2003061, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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  7. Pindyck, Robert S, 1988. "Irreversible Investment, Capacity Choice, and the Value of the Firm," American Economic Review, American Economic Association, vol. 78(5), pages 969-85, December.
  8. David Aschauer, 1988. "Is public expenditure productive?," Staff Memoranda 88-7, Federal Reserve Bank of Chicago.
  9. Albert Marcet & Thomas J. Sargent & Juha Seppala, 1996. "Optimal taxation without state-contingent debt," Economics Working Papers 170, Department of Economics and Business, Universitat Pompeu Fabra, revised Oct 2001.
  10. Glomm, Gerhard & Ravikumar, B., 1994. "Public investment in infrastructure in a simple growth model," Journal of Economic Dynamics and Control, Elsevier, vol. 18(6), pages 1173-1187, November.
  11. Bajo-Rubio, Oscar, 2000. "A further generalization of the Solow growth model: the role of the public sector," Economics Letters, Elsevier, vol. 68(1), pages 79-84, July.
  12. Stephen Turnovsky, 1998. "Productive Government Expenditure in a Stochastically Growing Economy," Discussion Papers in Economics at the University of Washington 0056, Department of Economics at the University of Washington.
  13. Barro, Robert J., 1990. "Government Spending in a Simple Model of Endogeneous Growth," Scholarly Articles 3451296, Harvard University Department of Economics.
  14. Kevin J. Lansing, 1998. "Optimal Fiscal Policy in a Business Cycle Model with Public Capital," Canadian Journal of Economics, Canadian Economics Association, vol. 31(2), pages 337-364, May.
  15. Arrow, Kenneth J & Lind, Robert C, 1970. "Uncertainty and the Evaluation of Public Investment Decisions," American Economic Review, American Economic Association, vol. 60(3), pages 364-78, June.
  16. Simon Grant & John Quiggin, 2003. "Public Investment and the Risk Premium for Equity," Economica, London School of Economics and Political Science, vol. 70(277), pages 1-18, February.
  17. Eberly, Janice C. & Van Mieghem, Jan A., 1997. "Multi-factor Dynamic Investment under Uncertainty," Journal of Economic Theory, Elsevier, vol. 75(2), pages 345-387, August.
  18. Bertola, Giuseppe, 1998. "Irreversible investment," Research in Economics, Elsevier, vol. 52(1), pages 3-37, March.
  19. Bentolila, Samuel & Bertola, Giuseppe, 1990. "Firing Costs and Labour Demand: How Bad Is Eurosclerosis?," Review of Economic Studies, Wiley Blackwell, vol. 57(3), pages 381-402, July.
  20. Gramlich, Edward M, 1994. "Infrastructure Investment: A Review Essay," Journal of Economic Literature, American Economic Association, vol. 32(3), pages 1176-96, September.
  21. Burguet, Roberto & Fernandez-Ruiz, Jorge, 1998. "Growth through taxes or borrowing? A model of development traps with public capital," European Journal of Political Economy, Elsevier, vol. 14(2), pages 327-344, May.
  22. Pennings, Enrico, 2000. "Taxes and stimuli of investment under uncertainty," European Economic Review, Elsevier, vol. 44(2), pages 383-391, February.
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