Quelle méthodologie pour une étude des modèles DSGE ? Suggestions à partir d'un état des lieux des recherches sur la modélisation

Abstract : The purpose of the paper is to provide a methodological framework for a critical analysis of a specific class of macroeconomic models, namely the dynamic stochastic general equilibrium models (DSGE). We suggest some epistemological reflections to explore the underlying methodology and history of the DSGE models. To do this, we decided to rely on a literature review on the contributions about the notion of model and modelling in philosophy, history and sociology of sciences. Our approach tries to define, in an interdisciplinary way, a consistent methodology for dealing with a specific object. The review of this large literature has been organized around two complementary definitions of the object (“model” as concept, for the philosophy and history of sciences and “modelling” as a scientific practice, for the sociology of science) and around three fundamental questions (what is a model? how to build a model? what is the purpose of a model?). Starting from this review, we discuss the main elements which are consistent with an analysis of DSGE models, focusing in particular on intra- and interdisciplinary interactions, on the mechanisms of policy expertise and on the mediation between theories and data.
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Francesco Sergi. Quelle méthodologie pour une étude des modèles DSGE ? Suggestions à partir d'un état des lieux des recherches sur la modélisation. 2014. ⟨halshs-01109676⟩

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