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Road Transport Investment Projects and Additional Economic Benefits

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  • Torben Holvad

    ()

  • John Preston

    ()

Abstract

The paper examines the linkages between transport and the economy with particular focus on the basis for additionality of wider economic benefits from road transport infrastructure improvements. A major weakness of current appraisal practice of road transport infrastructure projects is its basis on partial equilibrium analysis. The partial equilibrium approach implies that the linkage from changes in the transport market is ignored creating the scope for a less than comprehensive consideration of all benefits and costs. The importance of ignoring other markets in transport appraisal has been subject to much analysis in the available literature: A key research question is whether such wider economic impacts are additional to the time and cost savings generated from transport policy interventions. The key condition under which wider economic effects are additional to a standard CBA is the extent to which the economy departs from the economic model of perfect competition. If imperfect competition dominates then it is possible that the wider economic effects can be additional to the CBA result. The context in which perfect competition is not a valid assumption involves imperfectly competitive output and input markets and/ or existence of subsidies and taxes. Furthermore, external costs such as air pollution or congestion from the transport sector as well as from economic activities across the different sectors can influence the CBA result. Computable General Equilibrium (CGE) models represent a possible solution to the problem of partial equilibrium analysis. The paper will review available theoretical and empirical evidence of how road transport improvements are linked to the wider economy including the possibility for addditionality. It will re-assess the role of Computable General Equilibrium models in measuring these additional benefits. Finally, it will consider the feasibility of examining the additional benefits that BritainÂ’s motorway network has brought to the national economy.

Suggested Citation

  • Torben Holvad & John Preston, 2005. "Road Transport Investment Projects and Additional Economic Benefits," ERSA conference papers ersa05p522, European Regional Science Association.
  • Handle: RePEc:wiw:wiwrsa:ersa05p522
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    File URL: http://www-sre.wu.ac.at/ersa/ersaconfs/ersa05/papers/522.pdf
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    References listed on IDEAS

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    1. Manning, Alan, 2003. "The real thin theory: monopsony in modern labour markets," Labour Economics, Elsevier, vol. 10(2), pages 105-131, April.
    2. Aschauer, David Alan, 1989. "Is public expenditure productive?," Journal of Monetary Economics, Elsevier, vol. 23(2), pages 177-200, March.
    3. Gramlich, Edward M, 1994. "Infrastructure Investment: A Review Essay," Journal of Economic Literature, American Economic Association, vol. 32(3), pages 1176-1196, September.
    4. Boarnet, Marlon G. & Haughwout, Andrew F., 2000. "Do Highways Matter? Evidence and Policy Implications of Highways' Influence on Metropolitan Development," University of California Transportation Center, Working Papers qt5rn9w6bz, University of California Transportation Center.
    5. Anthony J. Venables, 2007. "Evaluating Urban Transport Improvements: Cost-Benefit Analysis in the Presence of Agglomeration and Income Taxation," Journal of Transport Economics and Policy, University of Bath, vol. 41(2), pages 173-188, May.
    6. Crafts, Nick, 1996. "'Post-neoclassical Endogenous Growth Theory': What Are Its Policy Implications?," Oxford Review of Economic Policy, Oxford University Press, vol. 12(2), pages 30-47, Summer.
    7. T.R. Lakshmanan & P. Nijkamp & E.T. Verhoef & P. Rietveld, 2001. "articles: Benefits and costs of transport Classification, methodologies and policies," Papers in Regional Science, Springer;Regional Science Association International, vol. 80(2), pages 139-164.
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    Cited by:

    1. Bogdański Marcin, 2016. "Influence of the A2 motorway on the economic development at local level," Bulletin of Geography. Socio-economic Series, De Gruyter Open, vol. 32(32), pages 49-59, June.
    2. Louw, Erik & Leijten, Martijn & Meijers, Evert, 2013. "Changes subsequent to infrastructure investments: Forecasts, expectations and ex-post situation," Transport Policy, Elsevier, vol. 29(C), pages 107-117.
    3. repec:wfo:wstudy:27449 is not listed on IDEAS
    4. Kanemoto, Yoshitsugu, 2013. "Evaluating benefits of transportation in models of new economic geography," Economics of Transportation, Elsevier, vol. 2(2), pages 53-62.
    5. Gwilliam, Ken, 2008. "A review of issues in transit economics," Research in Transportation Economics, Elsevier, vol. 23(1), pages 4-22, January.

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