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International Knowledge Diffusion and Home-bias Effect: Do USPTO and EPO Patent Citations Tell the Same Story?

  • Emanuele Bacchiocchi
  • Fabio Montobbio

This paper estimates the international diffusion of technical knowledge using patent citations. We control for self-citations and for procedural differences between patent offices using equivalent patents. We find that (1) there are clear biases in patent examination processes that generate citations in the two offices; (2) at the EPO there is a strong localization effect at the country level, and the size is comparable to that found at the USPTO; (3) technological fields have different properties of diffusion in the two patent offices that do not depend on a patent office bias; (4) using EPO data, the US is not the leading country in terms of citations made and received, as occurs at the USPTO. Copyright © The editors of the "Scandinavian Journal of Economics" 2010 .

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Article provided by Wiley Blackwell in its journal Scandinavian Journal of Economics.

Volume (Year): 112 (2010)
Issue (Month): 3 (09)
Pages: 441-470

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Handle: RePEc:bla:scandj:v:112:y:2010:i:3:p:441-470
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  1. Luis A. Rivera-Batiz & Paul M. Romer, 1990. "Economic Integration and Endogenous Growth," NBER Working Papers 3528, National Bureau of Economic Research, Inc.
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