Marshall's ceteris paribus in a dynamic framework

Fabio Cerina

Working Paper CRENoS from Centre for North South Economic Research, University of Cagliari and Sassari, Sardinia

Abstract: The paper aims to propose a formalization of the concept of ceteris paribus (CP) by means of a dynamic model. The basic result of the analysis is that the CP clause may assume essentially different meanings according to (1) the kind of variables assumed to be "frozen" and (2) the length of the time horizon. It is then possible to distinguish, respectively, between an historical and an endogenous CP and, within the latter, between a short-run and a long-run CP. This double analytical distinction helps in understanding the role the CP clause plays in economic dynamics. Finally, the notion of long-run CP seems to suggest an extension of the standard view of the CP concept - interpreted as dynamics on manifolds, it still reduces the degree of complexity of a system even if variables "frozen" in it need not to be constant.

Keywords: ceteris paribus; marshall; dynamics; partial equilibrium (search for similar items in EconPapers)
JEL-codes: B31 B40 C60 (search for similar items in EconPapers)
Date: 2005
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Related works:
Journal Article: MARSHALL'S CETERIS PARIBUS IN A DYNAMIC FRAMEWORK (2009)
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Persistent link: https://EconPapers.repec.org/RePEc:cns:cnscwp:200501

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