Innovation Networks and Business-Stealing

Philippe Aghion, Matthew Jackson, Antoine Mayerowitz and Abhijit Tagade

No 17911, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: We use the universe of US Patent and Trademark Office (USPTO) data on patents and inventors from 1976 to 2017 to look at how inventors’ potential concern for business-stealing affects coauthorship on patents. First, we find an inverted-U shape in the fraction of coauthors that an inventor has per year who are new as a function number of other inventors also working in an inventor's field. Second, we find that after a breakthrough invention, an inventor brings in persistently fewer than usual new coauthors. Third, a higher potential concern for business stealing—as measured either by the number of others working or the average price markups by firms in the area—leads to a higher drop in the fraction of new co-authors per patent after a breakthrough. We show how these patterns can be explained via a simple model in which inventors trade off gains from collaboration against threats of business stealing.

Keywords: Innovation; Business stealing; Collaboration (search for similar items in EconPapers)
JEL-codes: D85 L14 (search for similar items in EconPapers)
Date: 2023-02
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