Inflation Determination with Taylor Rules: Is New Keynesian Analysis Critically Flawed?

Bennett McCallum

No 14534, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: Cochrane (2007) has strongly questioned the basic economic logic of current mainstream monetary policy analysis, arguing that the standard notion --that "determinacy" of a rational expectations (RE) equilibrium suffices to imply that stable inflation behavior will be generated -- is incorrect. This is because New Keynesian (NK) models are typically consistent with the existence of RE paths with explosive inflation rates (in addition to one or more stable paths) that normally do not imply explosions in real variables relevant for transversality conditions. Consequently, the usual logic does not imply the absence of explosive inflation. That result does not, however, justify negative conclusions about NK analysis. For there is a different criterion that is logically satisfactory for the purpose at hand. This is the requirement that, to be plausible, a RE solution must satisfy the property of least-squares learnability. Adoption of this criterion, which should be attractive to analysts concerned with actual monetary policy, serves to justify in principle the bulk of current mainstream analysis.

JEL-codes: E4 E5 E52 (search for similar items in EconPapers)
Date: 2008-12
New Economics Papers: this item is included in nep-cba, nep-mac and nep-mon
Note: EFG ME
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Citations: View citations in EconPapers (8)

Published as 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.

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