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Ordering policy rules with an unconditional welfare measure

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  • Damjanovic, Tatiana
  • Damjanovic, Vladislav
  • Nolan, Charles

Abstract

The unconditional expectation of social welfare is often used to assess alternative macroeconomic policy rules in applied quantitative research. It is shown that it is generally possible to derive a linear-quadratic problem that approximates the exact non-linear problem where the unconditional expectation of the objective is maximised and the steady-state is distorted. Thus, the measure of policy performance is a linear combination of second moments of economic variables which is relatively easy to compute numerically, and can be used to rank alternative policy rules. The approach is applied to a simple Calvo-type model under various monetary policy rules.

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Bibliographic Info

Paper provided by Scottish Institute for Research in Economics (SIRE) in its series SIRE Discussion Papers with number 2011-32.

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Date of creation: 2011
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Handle: RePEc:edn:sirdps:273

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Keywords: Linear-quadratic approximation; unconditional expectations; optimal monetary policy; ranking simple policy rules;

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