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What Is Wrong with Taylor Rules? Using Judgment in Monetary Policy through Targeting Rules

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  • Lars E.O. Svensson

    (Princeton University, CEPR and NBER)

Abstract

Most recent research on monetary-policy rules is restricted to considering a commitment to simple instrument rules, where the central-bank instrument is a simple function of available information about the economy, like the Taylor rule. However, a commitment to a simple instrument rule appears inadequate as a description of current goal-directed and forward-looking monetary policy, especially inflation targeting. The latter can to a large extent instead be seen as inflation-forecast targeting, setting the instrument so that the corresponding conditional inflation forecast is consistent with the inflation target. It is argued, both from a descriptive and a prescriptive perspective, that inflation targeting is better understood as a commitment to a targeting rule, either a general targeting rule in the form of clear objectives for monetary policy or a specific targeting rule in the form of a condition for (the forecasts of) the target variables, essentially the equality of the marginal rates of transformation and the marginal rates of substitution between the target variables. Targeting rules allow the use of judgment and extra-model information, are more robust and easier to verify than optimal instrument rules, and they can nevertheless bring the economy close to the socially optimal equilibrium. These ideas are illustrated with the help of simple examples. Some recent defense of commitment to simple instrument rules and criticism of forwardlooking monetary policy and targeting rules by McCallum, Nelson and Woodford are also addressed. In the concluding section, robust and optimal rules for monetary policy are suggested.

Suggested Citation

  • Lars E.O. Svensson, 2002. "What Is Wrong with Taylor Rules? Using Judgment in Monetary Policy through Targeting Rules," Working Papers 118, Princeton University, Department of Economics, Center for Economic Policy Studies..
  • Handle: RePEc:pri:cepsud:84svensson.pdf
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    More about this item

    Keywords

    Inflation targeting; forecast targeting;

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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