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The role of inventors’ networks and variety for breakthrough inventions

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  • Niccolò Innocenti
  • Francesco Capone
  • Luciana Lazzeretti
  • Sergio Petralia

Abstract

This paper studies the role of the inventors’ networks and the diversity of the local industrial structure for regional innovation, differentiating between regions' production of normal and breakthrough innovations. Our results suggest that, on the one hand, local related variety enhances the overall innovation rate, while unrelated variety supports the rate of breakthrough innovations. On the other hand, we find evidence that inventors’ networks are determinant for regions' patenting of normal and breakthrough innovations. To do so we constructed a unique database of Italian patenting activity at the United States Patent and Trademark Office (USPTO) dating back to 1972. Este artículo estudia el papel de las redes de inventores y la diversidad de la estructura industrial local para la innovación regional, diferenciando entre la producción de las regiones de innovaciones normales y de vanguardia. Los resultados sugieren que, por un lado, la variedad relacionada local aumenta la tasa de innovación global, mientras que la variedad no relacionada favorece la tasa de innovaciones de vanguardia. Por otra parte, se encontraron pruebas de que las redes de inventores son determinantes para las patentes de las regiones tanto de innovaciones normales como de vanguardia. Para el estudio se construyó una base de datos única sobre la actividad de patentes italianas en la Oficina de Patentes y Marcas de los Estados Unidos (USPTO) desde 1972. 本稿では、地域イノベーションにおける発明者ネットワークの役割と地域の産業構造の多様性を検討し、地域における通常のイノベーションと画期的なイノベーションとを差別化する。結果は、一方では地域関連のイノベーションは全体的なイノベーションの実現割合を引き上げ、一方では地域に関連しないイノベーションは画期的なイノベーションの割合を支えていることが示唆される。またさらに一方で、発明者のネットワークは、通常及び画期的なイノベーションの特許を地域が得るための決定要因であるというエビデンスが認められる。そこで、1972年までさかのぼる、米国特許商標庁 (United States Patent and Trademark Office:USPTO)でのイタリアによる特許申請活動のユニークなデータベースを構築した。

Suggested Citation

  • Niccolò Innocenti & Francesco Capone & Luciana Lazzeretti & Sergio Petralia, 2022. "The role of inventors’ networks and variety for breakthrough inventions," Papers in Regional Science, Wiley Blackwell, vol. 101(1), pages 37-57, February.
  • Handle: RePEc:bla:presci:v:101:y:2022:i:1:p:37-57
    DOI: 10.1111/pirs.12640
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