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Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research

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Verspagen,Bart (MERIT)

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Abstract

Technological change is argued to be taking place along ordered and selective pat-terns, shaped jointly by technological and scientific principles, and economic and other societal factors. Historical, descriptive analysis is often used to analyze these ''trajectories''. Recently, quantitative methods have been proposed to map these tra-jectories. It is argued that such methods have, so far, not been able to illuminate the engineering side of technological trajectories. In order to fill this gap, a methodology proposed by Hummon and Doreian (1989) is used and extended to undertake a cita-tion analysis of patents in the field of fuel cells.

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Paper provided by Maastricht : MERIT, Maastricht Economic Research Institute on Innovation and Technology in its series Research Memoranda with number 019.

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Date of creation: 2005
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Handle: RePEc:dgr:umamer:2005019

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Keywords: research and development ;

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  1. Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December. [Downloadable!] (restricted)
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  2. Jaffe, Adam B & Trajtenberg, Manuel & Henderson, Rebecca, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 577-98, August. [Downloadable!] (restricted)
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  3. Adam B. Jaffe & Manuel Trajtenberg, 2005. "Patents, Citations, and Innovations: A Window on the Knowledge Economy," MIT Press Books, The MIT Press, edition 1, volume 1, number 026260065x, April.
  4. repec:fth:harver:1473 is not listed on IDEAS
  5. Nelson, Richard R. & Winter, Sidney G., 1977. "In search of useful theory of innovation," Research Policy, Elsevier, vol. 6(1), pages 36-76, January. [Downloadable!] (restricted)
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  6. Frenken, Koen & Saviotti, Paolo P. & Trommetter, Michel, 1999. "Variety and niche creation in aircraft, helicopters, motorcycles and microcomputers," Research Policy, Elsevier, vol. 28(5), pages 469-488, June. [Downloadable!] (restricted)
  7. Frenken, K. & Nuvolari, A., 2003. "The Early Development of the Steam Engine: An Evolutionary Interpretation using Complexity Theory," ECIS Working Papers 03.15, Eindhoven Centre for Innovation Studies, Eindhoven University of Technology. [Downloadable!]
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  8. Saviotti, P. P. & Metcalfe, J. S., 1984. "A theoretical approach to the construction of technological output indicators," Research Policy, Elsevier, vol. 13(3), pages 141-151, June. [Downloadable!] (restricted)
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(explanations, 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.)

  1. Christopher Palmberg & Tuomo Nikulainen, 2006. "Industrial Renewal and Growth through Nanotechnology ? - An Overview with Focus on Finland," Discussion Papers 1020, The Research Institute of the Finnish Economy. [Downloadable!]
  2. Carolina Castaldi & Roberto Fontana & Alessandro Nuvolari, 2006. "'Chariots of Fire': The Evolution of Tank Technology, 1915-1945," LEM Papers Series 2006/03, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy. [Downloadable!]
    Other versions:
  3. Sadowski, B.M. & Straathof, B., 2005. "VoIP under the EU Regulatory Framework: Preventing Foreclosure?," ECIS Working Papers 05.16, Eindhoven Centre for Innovation Studies, Eindhoven University of Technology. [Downloadable!]
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