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Technological and geographical proximity effects on knowledge spillovers: evidence from us patent citations

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  • Luigi Aldieri

Abstract

The purpose of this paper is to investigate the pattern of knowledge flows as indicated by patent citations. In order to compute the technological proximity, we have followed the methodology developed by Jaffe (1986), where a technological vector is based on the distribution of patents of each firm across technology classes. As far as the geographic proximity is concerned, we have used the latitude and the longitude coordinates of the city in which each firm is located. The empirical results suggest that the effects of proximity variables on knowledge flows are rather differentiated.

Suggested Citation

  • Luigi Aldieri, 2008. "Technological and geographical proximity effects on knowledge spillovers: evidence from us patent citations," DULBEA Working Papers 08-18.RS, ULB -- Universite Libre de Bruxelles.
  • Handle: RePEc:dul:wpaper:08-18rs
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    File URL: https://dipot.ulb.ac.be/dspace/bitstream/2013/13568/1/dul-0062.pdf
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    Citations

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    Cited by:

    1. Bernal, Oscar & Oosterlinck, Kim & Szafarz, Ariane, 2010. "Observing bailout expectations during a total eclipse of the sun," Journal of International Money and Finance, Elsevier, vol. 29(7), pages 1193-1205, November.
    2. Charles Plaigin, 2009. "Exploratory study on the presence of cultural and institutional growth spillovers," DULBEA Working Papers 09-03.RS, ULB -- Universite Libre de Bruxelles.
    3. repec:spr:scient:v:89:y:2011:i:3:d:10.1007_s11192-011-0473-z is not listed on IDEAS
    4. Pierre-Guillaume Méon & Ariane Szafarz, 2008. "Labor market discrimination as an agency cost," DULBEA Working Papers 08-19.RS, ULB -- Universite Libre de Bruxelles.
    5. Aldieri, Luigi, 2011. "Knowledge spillovers and productivity in Italian manufacturing firms," MPRA Paper 35018, University Library of Munich, Germany.

    More about this item

    Keywords

    Innovation; Knowledge Spillovers; Technology Transfer; Patent Citations.;

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