Speculative Hyperinflations in Maximizing Models: Can We Rule Them Out?
AbstractKnife-edge stability is a common property of dynamic monetary models assuming perfect foresight or rational expectations. These models can be closed with the assumption that the economy's equilibrium lies on the unique convergent path (the saddlepath). While this empirically plausible assumption yields sensible results, aggregative models are not specified in sufficient detail to allow one to prove that the saddlepath is the unique equilibrium path. Brock (1974, 1975) and Brock and Scheinkman (1980) have advanced models in which individual preferences are more fully specified and in which, under certain conditions, the uniqueness and stability of equilibrium can be rigorously demonstrated. This paper shows that these uniqueness conditions are economically unreasonable. Therefore, the question these maximizing models address remains unresolved.
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Bibliographic InfoArticle provided by University of Chicago Press in its journal Journal of Political Economy.
Volume (Year): 91 (1983)
Issue (Month): 4 (August)
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Web page: http://www.journals.uchicago.edu/JPE/
Other versions of this item:
- Maurice Obstfeld & Kenneth Rogoff, 1982. "Speculative Hyperinflations in Maximizing Models: Can We Rule Them Out?," NBER Working Papers 0855, National Bureau of Economic Research, Inc.
- Maurice Obstfeld & Kenneth Rogoff, 1981. "Speculative hyperinflations in a maximizing models: can we rule them out?," International Finance Discussion Papers 195, Board of Governors of the Federal Reserve System (U.S.).
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Jo Anna Gray, 1982.
"Dynamic instability in rational expectations models: an attempt to clarify,"
International Finance Discussion Papers
197, Board of Governors of the Federal Reserve System (U.S.).
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- Brock, William A., 1975. "A simple perfect foresight monetary model," Journal of Monetary Economics, Elsevier, vol. 1(2), pages 133-150, April.
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- Flood, Robert P & Garber, Peter M, 1980. "Market Fundamentals versus Price-Level Bubbles: The First Tests," Journal of Political Economy, University of Chicago Press, vol. 88(4), pages 745-70, August.
- Fischer, Stanley, 1974. "Money and the Production Function," Economic Inquiry, Western Economic Association International, vol. 12(4), pages 517-33, December.
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