Learning and Model Validation
This paper studies adaptive learning with multiple models. An agent operating in a self-referential environment is aware of potential model misspecification, and tries to detect it, in real-time, using an econometric specification test. If the current model passes the test, it is used to construct an optimal policy. If it fails the test, a new model is selected from a fixed set of models. As the rate of coefficient updating decreases, one model becomes dominant, and is used âalmost alwaysâ. Dominant models can be characterized using the tools of large deviations theory. The analysis is applied to Sargent's (1999) Phillips Curve model.
|Date of creation:||2011|
|Date of revision:|
|Contact details of provider:|| Postal: Society for Economic Dynamics Marina Azzimonti Department of Economics Stonybrook University 10 Nicolls Road Stonybrook NY 11790 USA|
Web page: http://www.EconomicDynamics.org/
More information through EDIRC
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.:
- Sargent, Thomas J., 1993. "Bounded Rationality in Macroeconomics: The Arne Ryde Memorial Lectures," OUP Catalogue, Oxford University Press, number 9780198288695, June.
- Brock,W.A. & Durlauf,S.N. & West,K.D., 2004.
"Model uncertainty and policy evaluation : some theory and empirics,"
19, Wisconsin Madison - Social Systems.
- William A. Brock & Steven N. Durlauf & Kenneth D. West, 2005. "Model uncertainty and policy evaluation: some theory and empirics," Proceedings, Federal Reserve Bank of San Francisco.
- Brock, William A. & Durlauf, Steven N. & West, Kenneth D., 2007. "Model uncertainty and policy evaluation: Some theory and empirics," Journal of Econometrics, Elsevier, vol. 136(2), pages 629-664, February.
- William A. Brock & Steven N. Durlauf & Kenneth D. West, 2004. "Model Uncertainty and Policy Evaluation: Some Theory and Empirics," NBER Working Papers 10916, National Bureau of Economic Research, Inc.
- Timothy Cogley & Riccardo Colacito & Thomas J. Sargent, 2007.
"Benefits from U.S. Monetary Policy Experimentation in the Days of Samuelson and Solow and Lucas,"
Journal of Money, Credit and Banking,
Blackwell Publishing, vol. 39(s1), pages 67-99, 02.
- Timothy Cogley & Riccardo Colacito & Thomas J. Sargent, 2005. "Benefits from U.S. monetary policy experimentation in the days of Samuelson and Solow and Lucas," Proceedings, Board of Governors of the Federal Reserve System (U.S.).
- Timothy Cogley & Thomas Sargent & Riccardo Colacito, 2005. "Benefits from U.S. Monetary Policy Experimentation in the Days of Samuelson," 2005 Meeting Papers 791, Society for Economic Dynamics.
- Vuong, Quang H, 1989. "Likelihood Ratio Tests for Model Selection and Non-nested Hypotheses," Econometrica, Econometric Society, vol. 57(2), pages 307-33, March.
- Brock, W.A., 1995.
"A Rational Route to Randomness,"
9530, Wisconsin Madison - Social Systems.
- Marcet, Albert & Sargent, Thomas J., 1989. "Convergence of least squares learning mechanisms in self-referential linear stochastic models," Journal of Economic Theory, Elsevier, vol. 48(2), pages 337-368, August.
- Aghion, Philippe & Bacchetta, Philippe & Banerjee, Abhijit, 2001.
"Currency crises and monetary policy in an economy with credit constraints,"
European Economic Review,
Elsevier, vol. 45(7), pages 1121-1150.
- Aghion, Philippe & Bacchetta, Philippe & Banerjee, Abhijit, 2000. "Currency Crises and Monetary Policy in an Economy with Credit Constraints," CEPR Discussion Papers 2529, C.E.P.R. Discussion Papers.
- Philippe Aghion & Philippe Bacchetta & Abhijit Banerjee, 2000. "Currency Crises and Monetary Policy in an Economy with Credit Constraints," Working Papers 00.07, Swiss National Bank, Study Center Gerzensee.
- Banerjee, Abhijit & Bacchetta, Philippe & Aghion, Philippe, 2001. "Currency Crises and Monetary Policy in an Economy with Credit Constraints," Scholarly Articles 4554218, Harvard University Department of Economics.
- Sargent, Thomas J, 1976.
"The Observational Equivalence of Natural and Unnatural Rate Theories of Macroeconomics,"
Journal of Political Economy,
University of Chicago Press, vol. 84(3), pages 631-40, June.
- Thomas J. Sargent, 1975. "The observational equivalence of natural and unnatural rate theories of macroeconomics," Working Papers 48, Federal Reserve Bank of Minneapolis.
- Thomas J. Sargent & Noah Williams, 2003.
"Impacts of priors on convergence and escapes from Nash inflation,"
FRB Atlanta Working Paper
2003-14, Federal Reserve Bank of Atlanta.
- Thomas J. Sargent & Noah William, 2005. "Impacts of Priors on Convergence and Escapes from Nash Inflation," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(2), pages 360-391, April.
- Hansen, Lars Peter & Sargent, Thomas J., 1993. "Seasonality and approximation errors in rational expectations models," Journal of Econometrics, Elsevier, vol. 55(1-2), pages 21-55.
- Yuichi Kitamura & Michael Stutzer, 1997. "An Information-Theoretic Alternative to Generalized Method of Moments Estimation," Econometrica, Econometric Society, vol. 65(4), pages 861-874, July.
- Evan W. Anderson & Lars Peter Hansen & Thomas J. Sargent, 2003. "A Quartet of Semigroups for Model Specification, Robustness, Prices of Risk, and Model Detection," Journal of the European Economic Association, MIT Press, vol. 1(1), pages 68-123, 03.
When requesting a correction, please mention this item's handle: RePEc:red:sed011:1086. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Christian Zimmermann)
If references are entirely missing, you can add them using this form.