新冠疫情下的国际科研合作研究

通过网络协同构建理论，将新冠期间的科研合作构建成国家层面的合作网络，旨在描述疫情期间科研合作的演化模式及疫情对科研合作所产生的影响。在合作网络视角下，通过计算网络特征以发现科研合作的演化模式，利用国家合作新鲜度以了解合作中心的动态演化，并运用断点回归方法检验了疫情对国际科研合作的影响。研究结果显示，新冠疫情的爆发促使各个国家加强科研合作以对抗疫情。其中，中国在疫情前期扮演了重要角色，虽然合作中心逐渐随着疫情的变化而转移，中国仍是一个重要的合作对象。最后，通过因果分析研究了国家在疫情期间的合作行为，发现疫情促进了人们合作对抗灾难的行动力。

International Cooperation in Scientific Research during the COVID-19

The research uses the network collaborative construction theory to construct a national scientific cooperation network during the COVID-19 epidemic period, aiming to describe the evolution patterns of scientific research cooperation and the impact on the cooperation during the epidemic period. From the perspective of the cooperation network, the research calculates the network features to investigate the evolution patterns of the scientific research cooperation network. The present work also calculates the national cooperation freshness to investigate the dynamic evolution of the cooperation center. Finally, the regression discontinuity design is used to estimate the impact of the epidemic on national scientific research cooperation. The results show that the outbreak of the epidemic strengthens the scientific research cooperation. Furthermore, China played an important role in the epidemic, especially in the early stage. Although the cooperation center has gradually shifted with the change of the affected areas, China is still an important collaborator. Finally, our work studies the cooperative behavior of countries during the epidemic through regression discontinuity design and finds that the epidemic has been promoting people's ability to cooperate in fighting against disasters.