Publication Type
Journal Article
Version
acceptedVersion
Publication Date
3-2025
Abstract
Using rapid expansion of the Beijing subway from 2000 to 2018, we analyze its impact on collaborative matches in innovations. We find that an hour reduction in travel time between a pair of locations in Beijing brought 14.85% to 37.69% increase in collaborated patents. Far-apart location pairs were more affected, and the local average causal response is approximately 34.92% to 82.29%. The effect is mainly driven by increased matches among highly productive innovators. The entry of new innovators, relocation of existing innovators, and collaborations among low-productive innovators also contribute to the increase in collaborative matches, especially in the long run.
Keywords
innovation, matching, patent collaboration, Beijing subway, transportation, infrastructure
Discipline
Economics | Infrastructure | Technology and Innovation
Research Areas
Applied Microeconomics
Publication
Review of Economics and Statistics
Volume
107
Issue
2
First Page
476
Last Page
493
ISSN
0034-6535
Identifier
10.1162/rest_a_01279
Publisher
Massachusetts Institute of Technology Press
Citation
KOH, Yumi; JING, Li; and XU, Jianhuan.
Subway, collaborative matching, and innovation. (2025). Review of Economics and Statistics. 107, (2), 476-493.
Available at: https://ink.library.smu.edu.sg/soe_research/2541
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1162/rest_a_01279