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Analyse coût-bénéfice dans un contexte de concurrence intermodale et intramodale

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  • Catherine Vibes
  • Marc Ivaldi

Abstract

[eng] This study presents a methodology to evaluate the impact of a new transportation infrastructure on social welfare, taking into account both inter-and intramodal competition. The new infrastructure alters the characteristics of the transportation mode involved, entailing changes in the competition framework. We apply our methodology to a specific example : the introduction of a rail link between two German cities. We simulate the resulting changes in market equilibrium, when consumers choose a transportation mode and an operator to travel on a given city-pair. At the same time, operators strategically set prices for the types of service they provide. This approach can be used to classify investment projects in an imperfect-competition setting. [fre] Cette étude propose une approche pour évaluer l’impact d’une infrastructure de transport sur le bien-être social en tenant compte explicitement de ses effets sur la concurrence intermodale et intramodale. La réalisation d’une infrastructure particulière change les caractéristiques du mode de transport associé et donc les conditions de la concurrence. À l’aide d'un exemple, nous simulons comment une nouvelle infrastructure ferroviaire sur une liaison spécifique modifie l’équilibre du marché dans lequel les consommateurs choisissent un mode de transport ainsi qu’un opérateur pour voyager entre deux villes particulières. Simultanément les opérateurs décident de manière stratégique des prix associés aux différents services qu’ils fournissent. De là, cette approche appliquée à différents projets d’investissements permet de les classer dans un environnement de concurrence imparfaite.

Suggested Citation

  • Catherine Vibes & Marc Ivaldi, 2007. "Analyse coût-bénéfice dans un contexte de concurrence intermodale et intramodale," Économie et Prévision, Programme National Persée, vol. 178(2), pages 41-49.
    • Handle: RePEc:prs:ecoprv:ecop_0249-4744_2007_num_178_2_7640
    DOI: 10.3406/ecop.2007.7640
    Note: DOI:10.3406/ecop.2007.7640
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    1. Ivaldi, Marc & Verboven, Frank, 2005. "Quantifying the effects from horizontal mergers: Comments on the underlying assumptions," International Journal of Industrial Organization, Elsevier, vol. 23(9-10), pages 699-702, December.
    2. Tae H. Oum & Waters, W.G. & Jong Say Yong, 1990. "A survey of recent estimates of price elasticities of demand for transport," Policy Research Working Paper Series 359, The World Bank.
    3. Ivaldi, Marc & Verboven, Frank, 2005. "Quantifying the effects from horizontal mergers in European competition policy," International Journal of Industrial Organization, Elsevier, vol. 23(9-10), pages 669-691, December.
    4. Steven T. Berry, 1994. "Estimating Discrete-Choice Models of Product Differentiation," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 242-262, Summer.
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