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Asymmetric Duopoly in Space - what policies work?

Author

Listed:
  • Dunkerley Fay

    () (K.U.Leuven-Center for Economic Studies)

  • Andre de Palma

    () (Université de Cergy-Pontoise, ENPC and Member of Institut Universitaire de France, THEMA, 33,)

  • Proost Stef

    () (K.U.Leuven-Center for Economic Studies; UCL - CORE)

Abstract

In this paper we study the problem of a city with access to two subcentres selling a differentiated product. The first subcentre has low free flow transport costs but is easily congested (near city centre, access by road). The second one has higher free flow transport costs but is less prone to congestion (ample public transport capacity, parking etc.). Both subcentres need to attract customers and employees by offering prices and wages that are sufficiently attractive to cover their fixed costs. In the absence of any government regulation, there will be an asymmetric duopoly game that can be solved for a Nash equilibrium in prices and wages offered by the two subcentres. This solution is typically characterised by excessive congestion for the nearby subcentre. We study the welfare effects of a number of stylised policies by setting up a general model and illustrating the model using competition between airports as an example. The first stylised policy is to extend the congested road to subcentre 1. This policy will not necessarily lead to less congestion as more customers will be attracted by the lower transport costs. The second policy option is to add congestion pricing (or parking pricing etc.) for the congested subcentre. This will decrease its profit margin and attract more customers. The third policy is acceptable for politicians: providing a direct subsidy to the remote subcentre, reducing its marginal costs. This policy will again ease the congestion problem for the nearby subcentre but will do this in a very costly way.

Suggested Citation

  • Dunkerley Fay & Andre de Palma & Proost Stef, 2005. "Asymmetric Duopoly in Space - what policies work?," Energy, Transport and Environment Working Papers Series ete0509, KU Leuven, Department of Economics - Research Group Energy, Transport and Environment.
  • Handle: RePEc:ete:etewps:ete0509
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    References listed on IDEAS

    as
    1. Andre de Palma & Fay Dunkerley & Stef Proost, 2010. "Trip Chaining: Who Wins Who Loses?," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 19(1), pages 223-258, March.
    2. Lambertini, Luca, 1997. "Optimal Fiscal Regime in a Spatial Duopoly," Journal of Urban Economics, Elsevier, vol. 41(3), pages 407-420, May.
    3. Hansen, Mark M. & Gillen, David & Djafarian-Tehrani, Reza, 2001. "Aviation infrastructure performance and airline cost: a statistical cost estimation approach," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 37(1), pages 1-23, March.
    4. Arnott, Richard & de Palma, Andre & Lindsey, Robin, 1993. "A Structural Model of Peak-Period Congestion: A Traffic Bottleneck with Elastic Demand," American Economic Review, American Economic Association, vol. 83(1), pages 161-179, March.
    5. Ivaldi, Marc & Vibes, Catherine, 2005. "Intermodal and Intramodal Competition in Passenger Rail Transport," IDEI Working Papers 345, Institut d'Économie Industrielle (IDEI), Toulouse.
    6. Pels, Eric & Verhoef, Erik T., 2004. "The economics of airport congestion pricing," Journal of Urban Economics, Elsevier, vol. 55(2), pages 257-277, March.
    7. Pels, Eric & Nijkamp, Peter & Rietveld, Piet, 2003. "Access to and competition between airports: a case study for the San Francisco Bay area," Transportation Research Part A: Policy and Practice, Elsevier, vol. 37(1), pages 71-83, January.
    8. Thorsten Fischer & David R. Kamerschen, 2003. "Price-Cost Margins in the US Airline Industry using a Conjectural Variation Approach," Journal of Transport Economics and Policy, University of Bath, vol. 37(2), pages 227-259, May.
    9. Barrett, Sean D., 2004. "How do the demands for airport services differ between full-service carriers and low-cost carriers?," Journal of Air Transport Management, Elsevier, vol. 10(1), pages 33-39.
    10. Pels, Eric & Rietveld, Piet, 2004. "Airline pricing behaviour in the London–Paris market," Journal of Air Transport Management, Elsevier, vol. 10(4), pages 277-281.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    duopoly; imperfect competition; congestion; general equilibrium; airport competition;

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise
    • R13 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - General Equilibrium and Welfare Economic Analysis of Regional Economies

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