From Dornbusch to Murphy: Stylized Monetary Dynamics of a Contemporary Macroeconometric Model
AbstractDornbusch's 1976 overshooting exchange rate model (hereafter, DBM) has long been known to underpin several large macro models, including the Murphy Model (MM). But the dynamic adjustment paths of variables in MM differ markedly from those in DBM, even qualitatively. A leading case in point is the exchange rate which in MM undershoots its new long run-equilibrium value after the injection of a monetary shock, and then actually moves away from this equi-librium for a time before approaching it via a damped cyclical adjustment path (whereas the corresponding path in DBM is monotonic). This paper gives a simplified account of how this comes about. The emphasis is not so much on theoretical rigour but on providing a convincing practical demonstration. Using the simplest form of DBM as a starting point, it is shown how one can develop a miniature model exhibiting an MM-like response to a monetary shock. The key idea is that aggregate demand does not respond instantaneously (as in DBM) to shocks in the macroeconomic environment, but shows some degree of inertia. Nothing more is required to reconcile the qualitative dynamics of MM with DBM.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Bibliographic InfoArticle provided by Elsevier in its journal Journal of Policy Modeling.
Volume (Year): 22 (2000)
Issue (Month): 1 (January)
Contact details of provider:
Web page: http://www.elsevier.com/locate/inca/505735
Other versions of this item:
- Powell, A.A., 1995. "From Dornbush to Murphy: Stylized Monetary Dynamics of a Contemporary Macroeconometric Model," Monash Econometrics and Business Statistics Working Papers 13/95, Monash University, Department of Econometrics and Business Statistics.
- Alan A. Powell, 1998. "From Dornbusch to Murphy: Stylized Monetary Dynamics of a contemporary Macroeconometric Model," Centre of Policy Studies/IMPACT Centre Working Papers ip-69, Victoria University, Centre of Policy Studies/IMPACT Centre.
- E17 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Forecasting and Simulation: Models and Applications
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
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.:
- Murphy, C W, 1988. "Rational Expectations in Financial Markets and the Murphy Model," Australian Economic Papers, Wiley Blackwell, vol. 27(0), pages 61-88, Supplemen.
- John B. Taylor, 1995.
"The Monetary Transmission Mechanism: An Empirical Framework,"
Journal of Economic Perspectives,
American Economic Association, vol. 9(4), pages 11-26, Fall.
- John B. Taylor, 1995. "The monetary transmission mechanism: an empirical framework," Working Papers in Applied Economic Theory 95-07, Federal Reserve Bank of San Francisco.
- David W.R. Gruen & Marianne C. Gizycki, 1993.
"Explaining Forward Discount Bias: Is it Anchoring?,"
RBA Research Discussion Papers
rdp9307, Reserve Bank of Australia.
- Gruen, D.W.R. & Gizycki, M.C., 1993. "Explaining Forward Discount Bias: Is It Anchoring?," Papers 164, Princeton, Woodrow Wilson School - Public and International Affairs.
- Murphy, C W, 1988. "An Overview of the Murphy Model," Australian Economic Papers, Wiley Blackwell, vol. 27(0), pages 175-99, Supplemen.
- Dornbusch, Rudiger, 1976. "Expectations and Exchange Rate Dynamics," Journal of Political Economy, University of Chicago Press, vol. 84(6), pages 1161-76, December.
- Taylor, John B., 1993. "Discretion versus policy rules in practice," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 39(1), pages 195-214, December.
- Ric D. Herbert and Rod D. Bell, 2001. "Constrained Optimal Control Under Limited Knowledge," Computing in Economics and Finance 2001 14, Society for Computational Economics.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei).
If references are entirely missing, you can add them using this form.