Arbeitspapier
It's a Small(er) World: The Role of Geography and Networks in Biotechnology Innovation
Using patent citation data for the U.S., we test whether knowledge spillovers in biotechnology are sensitive to distance. Controlling for self-citation by inventor, assignee and examiner, cohort-based regression analysis shows that spillovers are local but that distance is becoming less important with time. Network analysis paints a picture of a stable network between states, but a changing environment between individual actors, with a growing importance of connectedness. The popular maxim that everyone is connected by six degrees of separation is tested with surprising results.
- Language
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Englisch
- Bibliographic citation
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Series: Wellesley College Working Paper ; No. 2002-01
- Classification
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Wirtschaft
- Subject
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Biotechnische Industrie
Innovation
Patent
Spillover-Effekt
Wissenstransfer
Regionale Konzentration
Schätzung
USA
- Event
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Geistige Schöpfung
- (who)
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Johnson, Daniel K.N.
Mareva, Milena
- Event
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Veröffentlichung
- (who)
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Wellesley College, Department of Economics
- (where)
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Wellesley, MA
- (when)
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2002
- Handle
- Last update
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10.03.2025, 11:44 AM CET
Data provider
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.
Object type
- Arbeitspapier
Associated
- Johnson, Daniel K.N.
- Mareva, Milena
- Wellesley College, Department of Economics
Time of origin
- 2002