Economically Sensible Solutions for Linear Rational Expectations Models with Forward and Backward Looking Dynamic Processes
Using variants of a modified version of Dornbusch's model of price level and exchange rate dynamics, it is demonstrated that satisfaction of the formal condition for existence of a unigue non-explosive solution of a linear rational expectations model with forward and backward looking dynamic processes (equality of the number of stable roots with the number of independent backward looking processes) does not guarantee the economic sensibility of this solution, even if one accepts the usual arguments for excluding "speculative babbles" from the solutions of such models. Moreover, satisfaction of the formal condition for existence of an infinity of non-explosive solutions for such rational expectations models (more stable roots than independent backward looking processes) does not assure that any of these solutions is economically sensible.
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- Taylor, John B, 1980.
"Aggregate Dynamics and Staggered Contracts,"
Journal of Political Economy,
University of Chicago Press, vol. 88(1), pages 1-23, February.
- Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-11, July.
- Alan S. Blinder & Stanley Fischer, 1979.
"Inventories, Rational Expectations, and the Business Cycle,"
NBER Working Papers
0381, National Bureau of Economic Research, Inc.
- Blinder, Alan S. & Fischer, Stanley, 1981. "Inventories, rational expectations, and the business cycle," Journal of Monetary Economics, Elsevier, vol. 8(3), pages 277-304.
- A. S. Blinder & S. Fischer, 1978. "Inventories, Rational Expectations, and the Business Cycle," Working papers 220, Massachusetts Institute of Technology (MIT), Department of Economics.
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