Can Learnability Save New-Keynesian Models?
AbstractBennett McCallum (2009), applying Evans and Honkapohja's (2001) results, argues that "learnability" can save New-Keynesian models from their indeterminacies. He claims the unique bounded equilibrium is learnable, and the explosive equilibria are not. However, he assumes that agents can directly observe the monetary policy shock. Reversing this assumption, I find the opposite result: the bounded equilibrium is not learnable and the unbounded equilibria are learnable. More generally, I argue that a threat by the Fed to move to an "unlearnable" equilibrium for all but one value of inflation is a poor foundation for choosing the bounded equilibrium of a New-Keynesian model.
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Date of creation: Oct 2009
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- E0 - Macroeconomics and Monetary Economics - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-10-31 (All new papers)
- NEP-CBA-2009-10-31 (Central Banking)
- NEP-MAC-2009-10-31 (Macroeconomics)
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- John H. Cochrane, 2007.
"Determinacy and Identification with Taylor Rules,"
NBER Working Papers
13410, National Bureau of Economic Research, Inc.
- McCallum, Bennett T., 2009.
"Inflation determination with Taylor rules: Is new-Keynesian analysis critically flawed?,"
Journal of Monetary Economics,
Elsevier, vol. 56(8), pages 1101-1108, November.
- Bennett T. McCallum, 2008. "Inflation Determination with Taylor Rules: Is New Keynesian Analysis Critically Flawed?," NBER Working Papers 14534, National Bureau of Economic Research, Inc.
- Hiona Balfoussia & Sophocles N. Brissimis & Manthos D. Delis, 2011.
"The theoretical framework of monetary policy revisited,"
138, Bank of Greece.
- Balfoussia, Hiona & Brissimis, Sophocles & Delis, Manthos D, 2011. "The theoretical framework of monetary policy revisited," MPRA Paper 32236, University Library of Munich, Germany.
- Tom Holden, 2012. "Learning from learners," School of Economics Discussion Papers 1512, School of Economics, University of Surrey.
- Airaudo, Marco & Nisticò, Salvatore & Zanna, Luis-Felipe, 2012. "Learning, Monetary Policy and Asset Prices," Department of Economics Working Paper Series 2012-12, LeBow College of Business, Drexel University.
- Minford, Patrick & Srinivasan, Naveen, 2011. "Ruling out unstable equilibria in New Keynesian models," Economics Letters, Elsevier, vol. 112(3), pages 247-249, September.
- Emanuel Gasteiger, 2013. "Heterogeneous Expectations, Optimal Monetary Policy, and the Merit of Policy Inertia," CDMA Working Paper Series 201308, Centre for Dynamic Macroeconomic Analysis.
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