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Uncoordinated Prices and Monetary Policy

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  • Torben M. Andersen

Abstract

[eng] Uncoordinated prices and monetary policy . Torben M. Andersen. The paper considers coordination problems and the role for monetary policiy within a setting where the traditional assumption of instantaneous market clearing (costless coordination) is given up in favour of a more realistic setting where price decisions arc made by numerous agents (firms) acting independently on their private (decentralized) information. Disequilibrium phenomene or coordination probleme arise in this context frorn the fact that price decisions are not coordinated and therefore not nt'ccesarily mutually consistent. An environment with real shocks to Costa and dernund is analysed, and monetary policy is considered as a means to overcome the coordination problems. It iv shown that (a) a systematic monetary policy if non-neutral. (b) monetary policy can reduce the implications of differential information and uncoordinated prices, but (c) even under an optimal policy there is a systematic output loss as compared to the full current information case. [fre] Cet article s'intéresse aux problèmes de coordination et au rôle de la politique monétaire lorsque l'hypothèse d'ajustement instantané des marchés est abandonnée et remplacée par une formulation plus réaliste dans laquelle les décisions de prix sont laissées à l'initiative de l'ensemble des agents (des entreprises) agissant de façon indépendante et sur la base de leur propre information (décentralisée). Dans ce contexte les phénomènes de déséquilibre ou les problèmes de coordination proviennent de l'absence de cohérence entre les décisions de prix qui, par le fait même, ne sont pas nécessairement compatibles entre elles. On analyse alors un système où interviennent des chocs réels sur les coûts et sur la demande et dans lequel la politique monétaire est utilisée comme instrument de résolution de ces problèmes de coordination. On montre successivement a) qu'une politique monétaire systématique n'est pas neutre ; b) que la politique monétaire est susceptible de réduire les problèmes posés par l'inégale distribution des informations et l'absence de coordination des prix ; c) mais que même dans le cas d'une politique optimale on enregistre une perte de production par rapport au cas d'information parfaite.

Suggested Citation

  • Torben M. Andersen, 1985. "Uncoordinated Prices and Monetary Policy," Revue Économique, Programme National Persée, vol. 36(6), pages 1247-1270.
  • Handle: RePEc:prs:reveco:reco_0035-2764_1985_num_36_6_408890
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