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SATISFICING SOLUTIONS TO A MONETARY POLICY PROBLEM

A Viability Theory Approach

Published online by Cambridge University Press:  01 February 2009

Jacek Krawczyk*
Affiliation:
Victoria University Wellington
Kunhong Kim
Affiliation:
Hallym University
*
Address correspondence to: Jacek Krawczyk, School of Economics & Finance, Faculty of Commerce & Administration, Victoria University Wellington, Pipitea Campus, Rutherford House, P.O. Box 600 Wellington, New Zealand; e-mail: J.Krawczyk@vuw.ac.nz.

Abstract

Herbert A. Simon, 1978 Economics Nobel Prize laureate, talked about satisficing (his neologism) rather than optimizing as being what economists really need. Indeed, optimization might be an unsuitable solution procedure (in that it suggests a unique “optimal” solution) for problems where many solutions could be satisfactory. We think that looking for an applicable monetary policy is a problem of this kind because there is no unique way in which a central bank can achieve a desired inflation (unemployment, etc.) path. We think that it is viability theory, which is a relatively young area of mathematics, that rigorously captures the essence of satisficing. We aim to use viability analysis to analyze a simple macro policy model and show how some robust adjustment rules can be endogenously obtained.

Type
Articles
Copyright
Copyright © Cambridge University Press 2009

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