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Comment se fixent les taux de change ? Un bilan

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  • Agnès Bénassy

Abstract

[eng] How are Exchange Rates Set? . by Agnès Bénassy.. . The article reviews current knowledge concerning the determination of exchange rates in a floating exchange rate system. The different theories are explained in order of increasing complexity from the uniform price law to the bubble theories. Empirical tests are then examined to show the traditional models' lack of empirical pertinence. The future should see the development of models combining a medium-term macroeconomic and structural approach (fundamental determinants) with an extremely short-term financial approach (bubbles and volatility). [spa] ¿Cómo se fijan los tipos de cambio? . por Agnès Bénassy.. . En el presente artículo se analizan los conocimientos actuales relativos a la determinación de los tipos de cambio en un régimen de cambios flotantes. Las diversas teorías se ponen en coherencia por orden creciente de complejidad, desde la ley del precio único hasta las teorías de las burbujas. Acto seguido se analizan las diversas pruebas empíricas, para poner de relieve la f alta de pertinencia empírica de los modelos tradicionales. En un futuro deberán desarrollarse modelos que combinen una metodología macroeconómica y estructural de plazo medio (déterminantes fundamentales) con una metodología fînanciera de muy corto plazo (burbujas, volatilidad). [ger] Wie werden die Wechselkurse bestimmt? . von Agnès Bénassy.. . Dieser Artikel enthält eine Bestandsaufnahme der derzeitigen Kenntnisse über die Bestimmung der Wechselkurse in einem floatenden System. Die verschiedenen Theorien werden dem Grad ihrer Komplexität entsprechend miteinander in Beziehung gesetzt, und zwar ab dem Gesetz des Einheitspreises bis hin zu den "Seifenblasen-Theorien", die zur Erklärung von Spekulationsschüben entwickelt wurden. Danach werden die verschiedenen empirischen Tests erörtert, wobei der geringe empirische Gehalt der traditionellen Modelle aufgezeigt wird. In Zukunft werden sicherlich Modelle entwickelt, die eine ^Combination aus einem mittelfristigen makroökonomischen und strukturellen Ansatz (grundlegende Determinanten) und einem überaus kurzfristigen finanzspezifischen Ansatz ("Seifenblasen", Volatilität) darstellen. [fre] Comment se fixent les taux de change ? Un bilan, . par Agnès Bénassy.. . Cet article fait le point sur les connaissances actuelles relatives à la détermination des taux de change dans un régime de changes flottants. Les différentes théories sont mises en cohérence par ordre croissant de complexité, depuis la loi du prix unique jusqu'aux théories des bulles. Les tests empiriques sont ensuite passés en revue, mettant en évidence le peu de pertinence empirique des modèles traditionnels. L'avenir devrait voir se développer des modèles combinant une approche macro-économique et structurelle de moyen terme (déterminants fondamentaux) avec une approche financière de très court terme (bulles, volatilité).

Suggested Citation

  • Agnès Bénassy, 1993. "Comment se fixent les taux de change ? Un bilan," Économie et Prévision, Programme National Persée, vol. 107(1), pages 37-62.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_1993_num_107_1_5596
    DOI: 10.3406/ecop.1993.5596
    Note: DOI:10.3406/ecop.1993.5596
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    Cited by:

    1. Mohammed Amine Lezar, 2023. "Real Exchange Rate of Moroccan Currency: Appreciated or Depreciated?," International Journal of Economics and Financial Issues, Econjournals, vol. 13(1), pages 89-101, January.

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