The assignment of intellectual property rights and innovation

Christopher Armstrong, Stephen Glaeser, Stella Park and Oscar Timmermans

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: We study how the assignment of intellectual property rights between inventors and their employers affects innovation. Incomplete contracting theories predict that stronger employer property rights reduce the threat that employee inventors hold up their employers, thereby affecting inventor and invention outcomes. We test these predictions using a U.S. appellate court ruling that shifted the assignment of property rights from inventors to their employers. Within-employer-year analyses demonstrate that affected inventors are less likely to retain patent rights, assign patents to new employers, or leave their current employer, all consistent with reduced inventor ability to hold up their employers. Due to the reduced possibility of hold-up, affected inventors’ innovations are revealed more promptly when disclosed, draw from a broader set of prior patents, and spread more to subsequent patents. If affected inventors do leave their employer, they are more likely to relocate to unaffected states. Furthermore, employers affected by the ruling are more likely to locate their inventors in agglomeration economies and alter their innovation strategy by reallocating activity across states and expanding their innovation portfolios. Our collective evidence suggests that shifting intellectual property rights to employers affects inventor and invention outcomes by reducing the threat of employee hold-up from the employer's perspective.

Keywords: corporate-innovation; disclosure; employee mobility; hold-up; incomplete contracts; employer-specific investment; corporate innovation (search for similar items in EconPapers)
JEL-codes: J41 J61 O30 (search for similar items in EconPapers)
Pages: 38 pages
Date: 2026-01-08
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Published in Journal of Accounting Research, 8, January, 2026. ISSN: 0021-8456

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