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Geographic Localization of International Technology Diffusion

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  • Wolfgang Keller

Abstract

Income convergence across countries turns on whether technological knowledge spillovers are global or local. I estimate the amount of spillovers from R&D expenditures on a geographic basis, using a new data set which encompasses most of the world's innovative activity between 1970 and 1995. I find that technology is to a substantial degree local, not global, as the benefits from spillovers are declining with distance. The distance at which the amount of spillovers is halved is about 1,200 kilometers. I also find that over time, technological knowledge has become considerably more global. Moreover, language skills are important for spillover diffusion. (JEL F0, O1, O3)

Suggested Citation

  • Wolfgang Keller, 2002. "Geographic Localization of International Technology Diffusion," American Economic Review, American Economic Association, vol. 92(1), pages 120-142, March.
    • Handle: RePEc:aea:aecrev:v:92:y:2002:i:1:p:120-142
    Note: DOI: 10.1257/000282802760015630
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    JEL classification:

    • E0 - Macroeconomics and Monetary Economics - - General
    • F10 - International Economics - - Trade - - - General
    • F20 - International Economics - - International Factor Movements and International Business - - - General
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General

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