BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:The Geography of Social Connectedness and Knowledge Flows in the U
 nited States: New Evidence from Patent Citations
DTSTART:20200706T170000
DTSTAMP:20260916T201417Z
UID:1a5b28b8cf7446cdea9203c9504267890385c2d7b49d729a502c3640
CATEGORIES:Conferences - Seminars
DESCRIPTION:Andreas Diemer (LSE)\nAndreas Diemer (LSE)\n"The Geography of 
 Social Connectedness and Knowledge Flows in the United States: New Evidenc
 e from Patent Citations" (video)\nDiscussant: Adam Jaffe (MIT/Brandeis)\n\
 nAbstract\nDo informal social ties connecting inventors across distant pla
 ces promote knowledge flows between them? Our focus is on transfers of kno
 wledge captured by patent citations. To measure informal ties\, we use a d
 irect and broad index of social connectedness of regions. We thus improve 
 on previous studies that rely on indirect measures to infer this relations
 hip. Moreover\, we isolate the specific effect of informal connections\, a
 bove and beyond formal ties (co-inventor networks) and plain geographic pr
 oximity. Our identification strategy relies on matching inventor citations
  with citations from examiners\, whose own social geography is orthogonal 
 to the inventor’s on the same patent. We identify a small but significan
 t and robust effect of informal ties on patent citation. Two counties at t
 he 75th percentile of social connectedness are on average 1.2 percentage p
 oints more likely to cite one another than a pair of counties at the 25th 
 percentile. We also show that the relevance of informal social ties has in
 creased in time. Further\, effects appear to be stronger for entrepreneurs
  and garage inventors\, for patents that are common domain in a geographic
 al sense\, and for distant technologies.\n\nKeywords: Knowledge flows\; Di
 ffusion\; Social connectedness\; Networks.\n\nEPFL Virtual Innovation Semi
 nar\nEVIS is a bi-weekly virtual seminar series focusing on Science\, Tech
 nology and Innovation topics studied through the lens of Economics\, Entre
 preneurship\, Strategy and Finance.\n 
LOCATION:Zoom
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR