Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/23232 
Erscheinungsjahr: 
2002
Schriftenreihe/Nr.: 
Wellesley College Working Paper No. 2002-01
Verlag: 
Wellesley College, Department of Economics, Wellesley, MA
Zusammenfassung: 
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.
JEL: 
N9
O3
R1
L6
Dokumentart: 
Working Paper

Datei(en):
Datei
Größe
104.25 kB





Publikationen in EconStor sind urheberrechtlich geschützt.