| 来源类型 | Discussion paper
|
| 规范类型 | 论文
|
| 来源ID | DP12942
|
| DP12942 Geography, Ties, and Knowledge Flows: Evidence from Citations in Mathematics |
| Keith Head; Yao Amber Li
|
| 发表日期 | 2018-05-18
|
| 出版年 | 2018
|
| 语种 | 英语
|
| 摘要 | 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 coauthorship, 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. |
| 主题 | International Trade and Regional Economics
|
| URL | https://cepr.org/publications/dp12942
|
| 来源智库 | Centre for Economic Policy Research (United Kingdom)
|
| 资源类型 | 智库出版物
|
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/541753
|
推荐引用方式
GB/T 7714 |
Keith Head,Yao Amber Li. DP12942 Geography, Ties, and Knowledge Flows: Evidence from Citations in Mathematics. 2018.
|
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
