Localisation des activités: un modèle bisectoriel avec coûts de transport

Marie-Françoise Calmette and Jacques Le Pottier

Revue Économique, 1995, vol. 46, issue 3, 901-909

Abstract: [eng] Location of activities : a two-sectors model with transportation costs. P. Krugman is arguing that a reduction of manufactured goods transportation costs favors concentration of industrial activity. In an economy with two sectors - the « agricultural » one being characterized by perfect competition and positive transportation costs (they equal zero in P. Krugman's model) -, we show that tendancy to concentration vanishes when transportation costs reduce sufficiently. An important remaining problem is connected with variations of agents' relative utilities. [fre] Selon P. Krugman , dans une économie où coexistent deux secteurs, l'un en concurrence monopolistique, l'autre en concurrence parfaite, la réduction des coûts de transport des biens du premier secteur favorise la concentration géogra­phique des activités. Nous montrons que, s'il y a un coût de transport positif pour les biens du deuxième secteur, cette tendance à la concentration disparaît pour de fortes réductions des coûts de transport dans le premier secteur. Mais les enjeux portent aussi, alors, sur l'évolution du bien-être relatif des agents.

Date: 1995
Note: DOI:10.3406/reco.1995.409704
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