IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Asymmetric Duopoly in Space - what policies work?

  • 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)

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.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

Paper provided by Katholieke Universiteit Leuven, Centrum voor Economische Studiën, Energy, Transport and Environment in its series Energy, Transport and Environment Working Papers Series with number ete0509.

in new window

Length: 32 pages
Date of creation: Dec 2005
Date of revision:
Handle: RePEc:ete:etewps:ete0509
Contact details of provider: Postal: Naamsestraat 69, 3000 Leuven
Phone: +32-(0)16-32 67 25
Fax: +32-(0)16-32 67 96
Web page:

More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. 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.
  2. 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.
  3. André De Palma & Fay Dunkerley & Stef Proost, 2005. "Trip chaining - who wins, who loses?," ERSA conference papers ersa05p496, European Regional Science Association.
  4. Lambertini, Luca, 1997. "Optimal Fiscal Regime in a Spatial Duopoly," Journal of Urban Economics, Elsevier, vol. 41(3), pages 407-420, May.
  5. 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.
  6. 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 161-79, March.
  7. Eric Pels & Erik Verhoef, 2003. "The Economics of Airport Congestion Pricing," Tinbergen Institute Discussion Papers 03-083/3, Tinbergen Institute.
  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, London School of Economics and University of Bath, vol. 37(2), pages 227-259, May.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:ete:etewps:ete0509. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Isabelle)

The email address of this maintainer does not seem to be valid anymore. Please ask Isabelle to update the entry or send us the correct address

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.