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Une application expérimentale de la méthode de minimisation de l'entropie croisée: l'estimation des flux d'échanges interrégionaux au Québec

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  • Jean Dubé
  • André Lemelin

Abstract

Cet article présente une application expérimentale de la méthode d'estimation des flux d'échanges entre des régions par la minimisation de l'entropie croisée (mesure de Kullback-Leibler). Les flux interrégionaux ont été estimés pour 31 catégories de biens et services, entre trois régions du Québec en 1992: les régions métropolitaines de Montréal et de Québec et le Reste-du-Québec. La méthode, d'inspiration bayesienne, a permis de dégager des flux interrégionaux respectant les totaux marginaux provenant de matrices de comptabilité sociale régionales préexistantes, à partir de données sur les flux de transport jouant le rôle de distribution a priori./In this paper, we report on an experimental application of Kullback-Leibler cross-entropy minimization to estimate trade flows between regions. Interregional trade flows were estimated for 31 categories of goods and services, between three regions of the Province of Québec in 1992: the Montréal and Québec metropolitan areas, and the Rest-of-Québec. With this bayesian-style method, we were able to obtain interregional flows that respect the marginal totals taken from pre-existing regional social accounting matrices, using transportation flow data as a priori distributions.

Suggested Citation

  • Jean Dubé & André Lemelin, 2005. "Une application expérimentale de la méthode de minimisation de l'entropie croisée: l'estimation des flux d'échanges interrégionaux au Québec," Cahiers de recherche 0525, CIRPEE.
  • Handle: RePEc:lvl:lacicr:0525
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    More about this item

    Keywords

    Estimation; commerce interrégional; flux de transport; minimisation de l'entropie croisée/interregional trade; transport flows; cross-entropy minimization;
    All these keywords.

    JEL classification:

    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • R13 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - General Equilibrium and Welfare Economic Analysis of Regional Economies
    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access

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