L'origine statistique du diagramme du cobweb

Emeric Lendjel ()
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Emeric Lendjel: Centre Walras-Pareto - UNIL - Université de Lausanne = University of Lausanne, MATISSE - UMR 8595 - Modélisation Appliquée, Trajectoires Institutionnelles et Stratégies Socio-Économiques - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique

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Abstract: The "cobweb theorem" or "cobweb diagram" is one of the first mathematical formalization that deals with the stability of the market process (Ezekiel [1938]). Moore gave intuitively its first formulation (Stigler [1962]), but its mathematical formalization was independently done by Ricci [1930], Schultz [1930] and Tinbergen [1930]. First, the paper shows how the idea of the cobweb mechanism appears in Moore's work in order to solve astatistical problem, namely the statistical estimation of supply and demand curves."Inadvertently" (Samuelson [1947]) Moore sets out the cobweb idea which mathematical formalization was given by Ricci, Schultz and Tinbergen. Second, this paper is an attempt to trace the links between Moore's work and its followers. It shows that the meaning of the cobweb diagram was different in the authors' thought. It also stresses the role of the mathematics in the investigation process of economic phenomena.

Keywords: Cobweb diagram; Dynamical process; Lag method; Mathematical formalization - Moore; Schultz; Ricci; Diagramme du cobweb; Processus dynamique; Méthode du retard; Formalisation mathématique; Moore; Tinbergen (search for similar items in EconPapers)
Date: 1998
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