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Thomas Sargent face à Robert Lucas: une autre ambition pour la Nouvelle Economie Classique

Author

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  • Goutsmedt, Aurélien

    (Duke University)

Abstract

L’article montre que la vision de la macroéconomie de Sargent contraste d'avec celle de Lucas. Pour Lucas, les hypothèses d'un modèle sont « a-réalistes », le modèle ne vise pas à représenter la réalité. Il est un outil de simulation qui doit permettre de simuler différentes politiques économiques. L'idéal « lucassien » est celui d'un macroéconomiste qui a donc vocation à devenir un ingénieur chargé de fournir un « logiciel de politiques économiques » aux autorités publiques, logiciel qu'il manipule afin d'aiguiller les choix de politiques sur une base scientifique. Sargent, quant à lui, considère que pour suppléer le paradigme keynésien, la nouvelle économie classique doit être capable de remplir les mêmes tâches, et l'une de ces tâches est de conseiller le pouvoir en lui fournissant une grille de lecture des phénomènes économiques et des outils intuitifs pour débattre des politiques économiques à mettre en place. Sargent cherche à appliquer ce qu'il nomme la théorie des anticipations rationnelles à un ensemble de cas concrets (stabilisation Poincaré, hyperinflation allemande, politique de Thatcher et Reagan) pour montrer la pertinence de ce cadre d'analyse pour penser les problèmes économiques contemporains.

Suggested Citation

  • Goutsmedt, Aurélien, 2019. "Thomas Sargent face à Robert Lucas: une autre ambition pour la Nouvelle Economie Classique," OSF Preprints eprxu, Center for Open Science.
    • Handle: RePEc:osf:osfxxx:eprxu
    DOI: 10.31219/osf.io/eprxu
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    Cited by:

    1. Aurélien Goutsmedt & Goulven Rubin, 2018. "Robert J. Gordon and the introduction of the natural rate hypothesis in the Keynesian framework," Post-Print halshs-01821825, HAL.
    2. Goutsmedt, Aurélien & Sergi, Francesco & Guizzo, Danielle, 2019. "An Agenda without a Plan: Robert E. Lucas's Trajectory throught the Public Debate," OSF Preprints 7jpa9, Center for Open Science.
    3. Aurélien Goutsmedt, 2017. "Stagflation and the crossroad in macroeconomics: the struggle between structural and New Classical macroeconometrics," Documents de travail du Centre d'Economie de la Sorbonne 17043, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
    4. Goutsmedt, Aurélien, 2019. "Macroeconomics at the Crossroads: Stagflation and the Struggle between "Keynesian" and New Classical Macroeconometric Programs," OSF Preprints y364t, Center for Open Science.

    More about this item

    JEL classification:

    • B22 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Macroeconomics
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • N12 - Economic History - - Macroeconomics and Monetary Economics; Industrial Structure; Growth; Fluctuations - - - U.S.; Canada: 1913-

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