The impact of air transport availability on research collaboration: A case study of four universities
The impact of air transport availability on research collaboration: A case study of four universities
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DOI：
10.1371/journal.pone.0238360
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发表时间：
2018-11
期刊：
影响因子：
3.7
通讯作者：
Adam Ploszaj;Xiaoran Yan;K. Börner
中科院分区：
文献类型：
--
作者：
Adam Ploszaj;Xiaoran Yan;K. Börner
本文分析了航空运输连通性和可达性对科学合作的影响。大量研究表明，合作的可能性随着潜在合作者之间距离的增加而下降。这些作品通常使用简单的物理距离测量，而不是实际的飞行能力和频率。我们的研究通过关注航班可用性与科学共同出版物数量之间的关系来解决这一限制。此外，我们区分了航班可用性的两个组成部分：(1)机场之间的直接和间接航空连接；(2)从科学文章作者所在的城市和城镇到最近的机场的距离。基于零膨胀负二项回归，我们提供的证据表明，更大的航班可用性与更频繁的科学合作有关。更多的航班连接（连通性）和靠近机场（可达性）增加了共同撰写科学论文的预期数量。此外，在加强科学合作方面，直航和一次转机的航班比转机较多的旅行更有价值。此外，对亚利桑那州立大学、印第安纳大学布卢明顿分校、印第安纳大学-普渡大学印第安纳波利斯分校和密歇根大学四个组织子数据集的分析表明，航空运输可用性与科学合作之间的关系并不统一，而是与一个机构的研究情况和为该机构服务的机场的特征有关。
This paper analyzes the impact of air transport connectivity and accessibility on scientific collaboration. Numerous studies demonstrated that the likelihood of collaboration declines with increase in distance between potential collaborators. These works commonly use simple measures of physical distance rather than actual flight capacity and frequency. Our study addresses this limitation by focusing on the relationship between flight availability and the number of scientific co-publications. Furthermore, we distinguish two components of flight availability: (1) direct and indirect air connections between airports; and (2) distance to the nearest airport from cities and towns where authors of scientific articles have their professional affiliations. Based on Zero-inflated Negative Binomial Regression, we provide evidence that greater flight availability is associated with more frequent scientific collaboration. More flight connections (connectivity) and proximity of airport (accessibility) increase the expected number of coauthored scientific papers. Moreover, direct flights and flights with one transfer are more valuable for intensifying scientific cooperation than travels involving more connecting flights. Further, analysis of four organizational sub-datasets—Arizona State University, Indiana University Bloomington, Indiana University-Purdue University Indianapolis, and University of Michigan—shows that the relationship between airline transport availability and scientific collaboration is not uniform, but is associated with the research profile of an institution and the characteristics of the airport that serves this institution.