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Cited by 448

The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.

Patents and Cumulative Innovation: Causal Evidence from the Courts *

Open access
Galasso, Alberto, Schankerman, Mark·2015·The Quarterly Journal of Economics

Abstract

Cumulative innovation is central to economic growth. Do patent rights facilitate or impede follow-on innovation? We study the causal effect of removing patent rights by court invalidation on subsequent research related to the focal patent, as measured by later citations. We exploit random allocation of judges at the U.S. Court of Appeals for the Federal Circuit to control for endogeneity of patent invalidation. Patent invalidation leads to a 50% increase in citations to the focal patent, on average, but the impact is heterogeneous and depends on characteristics of the bargaining environment. Patent rights block downstream innovation in computers, electronics, and medical instruments, but not in drugs, chemicals, or mechanical technologies. Moreover, the effect is entirely driven by invalidation of patents owned by large patentees that triggers more follow-on innovation by small firms.

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Metadata

Authors
Galasso, A., & Schankerman, M.
Venue
The Quarterly Journal of Economics
Published
2014-11-21
Volume
130
Issue
1
Pages
317-369
ISSN
  • 0033-5533 (ISSN-L)
  • 1531-4650
OpenAlex
W2116398574
Cited by
448
References
66
FWCI
72.87
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Patents and Cumulative Innovation: Causal Evidence from the Courts *. https://app.cochat.ai/papers/10.1093/qje/qju029
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Galasso, A., & Schankerman, M. (2015). Patents and Cumulative Innovation: Causal Evidence from the Courts *. The Quarterly Journal of Economics. https://doi.org/10.1093/qje/qju029

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.