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Variety of technological trajectories in low emission vehicles (LEVs): a patent data analysis

Author

Listed:
  • Vanessa Oltra

    (GREThA - Groupe de Recherche en Economie Théorique et Appliquée - UB - Université de Bordeaux - CNRS - Centre National de la Recherche Scientifique)

  • Maïder Saint Jean

    (GREThA - Groupe de Recherche en Economie Théorique et Appliquée - UB - Université de Bordeaux - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper focuses on the diversity of engine technologies for Low Emission Vehicles (LEVs) that are developed by car manufacturers in order to substitute for the conventional internal combustion engine vehicle. Our purpose is to analyse the competition between the various technologies for LEVs as well as the innovative strategy of car manufacturers. We first propose to define and to represent these technological trajectories in order to compare their performances and to identify their strength and weaknesses. The technological bottlenecks, the barriers to the adoption of these alternative engine technologies as well as the features of this technological competition are underlined. We then use a patent data analysis to study the patent portfolios of the main car manufacturers in these technologies on the period from 1990 to 2005. The dynamics of patents applied by car manufacturers gives insight on the competition among technologies and on the strategy of firms. This analysis emphasises the progressive diversification of firms patent portfolios over the whole set of engine technologies and the differentiated strategic positioning of car manufacturers according to countries.
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Vanessa Oltra & Maïder Saint Jean, 2006. "Variety of technological trajectories in low emission vehicles (LEVs): a patent data analysis," Post-Print hal-00155042, HAL.
    • Handle: RePEc:hal:journl:hal-00155042
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    References listed on IDEAS

    as
    1. Vanessa Oltra & Maider Saint Jean, 2005. "The dynamics of environmental innovations: three stylised trajectories of clean technology," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 14(3), pages 189-212.
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    3. Arthur, W Brian, 1989. "Competing Technologies, Increasing Returns, and Lock-In by Historical Events," Economic Journal, Royal Economic Society, vol. 99(394), pages 116-131, March.
    4. repec:fth:harver:1473 is not listed on IDEAS
    5. Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343, National Bureau of Economic Research, Inc.
    6. Lanjouw, Jean Olson & Mody, Ashoka, 1996. "Innovation and the international diffusion of environmentally responsive technology," Research Policy, Elsevier, vol. 25(4), pages 549-571, June.
    7. Thanh-Dong Pham & Byeong-Kyu Lee & Chi Hyeon Lee & Minh Viet Nguyen, 2015. "Emission Control Technology," Chapters, in: Farhad Nejadkoorki (ed.), Current Air Quality Issues, IntechOpen.
    8. Maxton,Graeme P. & Wormald,John, 2004. "Time for a Model Change," Cambridge Books, Cambridge University Press, number 9780521837156, October.
    9. Brunnermeier, Smita B. & Cohen, Mark A., 2003. "Determinants of environmental innovation in US manufacturing industries," Journal of Environmental Economics and Management, Elsevier, vol. 45(2), pages 278-293, March.
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    More about this item

    JEL classification:

    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation
    • L62 - Industrial Organization - - Industry Studies: Manufacturing - - - Automobiles; Other Transportation Equipment; Related Parts and Equipment

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