Geography, Ties and Knowledge Flows: Evidence from Citations in Mathematics
Yao Li () and
Asier Minondo ()
CEP Discussion Papers from Centre for Economic Performance, LSE
Using data on academic citations, career and educational histories of mathematicians, and disaggregated distance data for the world's top 1000 math departments, we study how geography and ties affect knowledge flows among scholars. The ties we consider are co-authorship, past colocation, advisor-mediated relationships, and alma mater relationships (holding a Ph.D. from the institution where another scholar is affiliated). Logit regressions using fixed effects that control for subject similarity, article quality, and temporal lags, show linkages are strongly associated with citation. Controlling for ties generally halves the negative impact of geographic barriers on citations. Ties matter more for less prominent and more recent papers and show no decline in importance in recent years. The impact of distance - controlling for ties - has fallen and is statistically insignificant after 2004.
Keywords: knowledge diffusion; distance; borders; networks; academic genealogy (search for similar items in EconPapers)
JEL-codes: F1 O3 R1 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-dcm and nep-geo
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1) Track citations by RSS feed
Downloads: (external link)
Journal Article: Geography, Ties, and Knowledge Flows: Evidence from Citations in Mathematics (2019)
Working Paper: Geography, Ties, and Knowledge Flows: Evidence from Citations in Mathematics (2018)
Working Paper: Geography, ties and knowledge flows: evidence from citations in mathematics (2018)
Working Paper: Geography, Ties, and Knowledge Flows: Evidence from Citations in Mathematics (2015)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:cep:cepdps:dp1554
Access Statistics for this paper
More papers in CEP Discussion Papers from Centre for Economic Performance, LSE
Bibliographic data for series maintained by ().