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Are Returns to Scale with Variable Network Size Adequate for Transport Industry Structure Analysis?

Author

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  • Leonardo J. Basso

    (Departamento de Ingeniería Civil, Universidad de Chile, Casilla 228-3, Santiago, Chile)

  • Sergio R. Jara-Díaz

    (Departamento de Ingeniería Civil, Universidad de Chile, Casilla 228-3, Santiago, Chile)

Abstract

It is customary to analyze transport industry structure using two indices: (1) economies of density and (2) economies of scale with variable network size . The latter has been defined to analyze the behavior of costs when output and network size expand simultaneously. After reviewing in detail what is intended with the calculation of RTS under this definition, we show analytically that, when the spatial aspects underlying transport production are taken into account, the seemingly reasonable conditions imposed on the aggregate output descriptions and the network variable conceal implicit output expansions that are not uniquely defined: they happen to depend on the specification of variables and on the evaluation point. Furthermore, most of the multiple output expansions analyzed correspond to cases that are hardly instructive. We conclude that this index is inherently ambiguous, hardly contributes to an adequate analysis of transport industry structure, and should be replaced by the calculation of economies of spatial scope ( Journal of Economic Literature L91, L11, D40).

Suggested Citation

  • Leonardo J. Basso & Sergio R. Jara-Díaz, 2006. "Are Returns to Scale with Variable Network Size Adequate for Transport Industry Structure Analysis?," Transportation Science, INFORMS, vol. 40(3), pages 259-268, August.
    • Handle: RePEc:inm:ortrsc:v:40:y:2006:i:3:p:259-268
    DOI: 10.1287/trsc.1060.0154
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    1. Severin Borenstein, 1992. "The Evolution of U.S. Airline Competition," Journal of Economic Perspectives, American Economic Association, vol. 6(2), pages 45-73, Spring.
    2. Massimo Filippini & Paola Prioni, 2003. "The influence of ownership on the cost of bus service provision in Switzerland - an empirical illustration," Applied Economics, Taylor & Francis Journals, vol. 35(6), pages 683-690.
    3. Jara-Díaz, Sergio R. & Basso, Leonardo J., 2003. "Transport cost functions, network expansion and economies of scope," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 39(4), pages 271-288, July.
    4. Zinan Liu & E. L. Lynk, 1999. "Evidence on market structure of the deregulated US airline industry," Applied Economics, Taylor & Francis Journals, vol. 31(9), pages 1083-1092.
    5. Panzar, John C., 1989. "Technological determinants of firm and industry structure," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 1, pages 3-59, Elsevier.
    6. Hurdle, Gloria J, et al, 1989. "Concentration, Potential Entry, and Performance in the Airline Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 38(2), pages 119-139, December.
    7. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 1, number 1.
    8. Ken Hendricks & Michele Piccione & Guofu Tan, 1995. "The Economics of Hubs: The Case of Monopoly," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 62(1), pages 83-99.
    9. Leonardo Basso & Sergio Jara-Díaz, 2006. "Distinguishing Multiproduct Economies of Scale from Economies of Density on a Fixed-Size Transport Network," Networks and Spatial Economics, Springer, vol. 6(2), pages 149-162, June.
    10. Leonardo J. Basso & Sergio R. Jara-Díaz, 2005. "Calculation of Economies of Spatial Scope from Transport Cost Functions with Aggregate Output with an Application to the Airline Industry," Journal of Transport Economics and Policy, University of Bath, vol. 39(1), pages 25-52, January.
    11. Richard H. Spady & Ann F. Friedlaender, 1978. "Hedonic Cost Functions for the Regulated Trucking Industry," Bell Journal of Economics, The RAND Corporation, vol. 9(1), pages 159-179, Spring.
    12. Jara-Díaz, Sergio R. & Donoso, Pedro P. & Araneda, J., 1991. "Best partial flow aggregation in transportation cost functions," Transportation Research Part B: Methodological, Elsevier, vol. 25(5), pages 329-339, October.
    13. Winston, Clifford, 1985. "Conceptual Development in the Economics of Transportation: An Interpretive Survey," Journal of Economic Literature, American Economic Association, vol. 23(1), pages 57-94, March.
    14. Fumitoshi Mizutani, 2004. "Privately Owned Railways' Cost Function, Organization Size and Ownership," Journal of Regulatory Economics, Springer, vol. 25(3), pages 297-322, May.
    15. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 2, number 2.
    16. Douglas W. Caves & Laurits R. Christensen & Michael W. Tretheway, 1984. "Economies of Density versus Economies of Scale: Why Trunk and Local Service Airline Costs Differ," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 471-489, Winter.
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    Cited by:

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    3. Fielbaum, Andrés & Tirachini, Alejandro & Alonso-Mora, Javier, 2023. "Economies and diseconomies of scale in on-demand ridepooling systems," Economics of Transportation, Elsevier, vol. 34(C).
    4. Christian von Hirschhausen & Astrid Cullmann, 2008. "Next Stop: Restructuring?: A Nonparametric Efficiency Analysis of German Public Transport Companies," Discussion Papers of DIW Berlin 831, DIW Berlin, German Institute for Economic Research.
    5. Leonardo Basso & Sergio Jara-Díaz, 2006. "Distinguishing Multiproduct Economies of Scale from Economies of Density on a Fixed-Size Transport Network," Networks and Spatial Economics, Springer, vol. 6(2), pages 149-162, June.
    6. Alumur, Sibel A. & Campbell, James F. & Contreras, Ivan & Kara, Bahar Y. & Marianov, Vladimir & O’Kelly, Morton E., 2021. "Perspectives on modeling hub location problems," European Journal of Operational Research, Elsevier, vol. 291(1), pages 1-17.
    7. Mihir Dash, 2020. "Firm-Level Determinants of Cost Structure of the Indian Sugar Industry," Journal of Applied Management and Investments, Department of Business Administration and Corporate Security, International Humanitarian University, vol. 9(2), pages 55-62, June.
    8. Johnston, Ahren & Ozment, John, 2013. "Economies of scale in the US airline industry," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 51(C), pages 95-108.
    9. Jara-Díaz, Sergio R. & Cortés, Cristián E. & Morales, Gabriela A., 2013. "Explaining changes and trends in the airline industry: Economies of density, multiproduct scale, and spatial scope," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 60(C), pages 13-26.

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    More about this item

    Keywords

    transportation economics; returns to scale; transport production; multioutput cost functions;
    All these keywords.

    JEL classification:

    • L91 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Transportation: General
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General

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