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The animal spirits hypothesis and the Benhabib–Farmer condition for indeterminacy

  • Guerrazzi, Marco

This paper provides a self-contained review of the introduction of the animal spirits hypothesis into the infinite horizon optimal‐growth model. The analysis begins with an economic discussion of Pontryagin's maximum principles. Thereafter, I develop a version of the increasing-returns Benhabib–Farmer model by showing the possible sub-optimality of the central planner solution and deriving the bifurcation condition for indeterminacy. Moreover, I give some insights on how to model intrinsic and extrinsic uncertainty. Finally, analyzing the equilibrium condition of the labor market, I provide an intuitive rationale for the mechanism that in this model might lead prophecies to be self-fulfilling.

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Article provided by Elsevier in its journal Economic Modelling.

Volume (Year): 29 (2012)
Issue (Month): 4 ()
Pages: 1489-1497

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Handle: RePEc:eee:ecmode:v:29:y:2012:i:4:p:1489-1497
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  11. S. Rao Aiyagari, 1995. "Comments on Farmer and Guo's "the econometrics of indeterminacy: an applied study."," Staff Report 196, Federal Reserve Bank of Minneapolis.
  12. Benhabib, Jess & Farmer, Roger E.A., 1991. "Indeterminacy and Increasing Returns," Working Papers 91-59, C.V. Starr Center for Applied Economics, New York University.
  13. 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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  19. Christopher A. Pissarides, 2000. "Equilibrium Unemployment Theory, 2nd Edition," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262161877, December.
  20. Roger E.A. Farmer & Jang Ting Guo, 1992. "Real Business Cycles and the Animal Spirits Hypothesis," UCLA Economics Working Papers 680, UCLA Department of Economics.
  21. Azariadis, Costas, 1981. "Self-fulfilling prophecies," Journal of Economic Theory, Elsevier, vol. 25(3), pages 380-396, December.
  22. K. Shell, 1968. "Applications of Pontryagin's Maximum Principle of Economics," Working papers 16, Massachusetts Institute of Technology (MIT), Department of Economics.
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  24. Tjalling C. Koopmans, 1963. "Appendix to 'On the Concept of Optimal Economic Growth'," Cowles Foundation Discussion Papers 163A, Cowles Foundation for Research in Economics, Yale University.
  25. Roger E.A. Farmer, 1994. "The Econometrics of Indeterminacy: An Applied Study," UCLA Economics Working Papers 720, UCLA Department of Economics.
  26. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680, December.
  27. Marianne Baxter & Robert G. King, 1991. "Productive externalities and business cycles," Discussion Paper / Institute for Empirical Macroeconomics 53, Federal Reserve Bank of Minneapolis.
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  30. Kamihigashi, Takashi, 1996. "Real business cycles and sunspot fluctuations are observationally equivalent," Journal of Monetary Economics, Elsevier, vol. 37(1), pages 105-117, February.
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