This paper empirically tests the relationship between city size and innovation output using panel data of Chinese cities from 2008 to 2018. The empirical results show that city size has a significant positive impact on innovation output. Without considering control variables, there is a...

The aging population problem caused by low intention to give birth has already appeared in China and will become more severe in the future. Even with the gradual implementation of the two-child policy, there is still no significant change in the intention to have more children. Using data from...

This paper proposes a framework to analyze the interdisciplinary collaboration in a coauthorship network from a meso perspective using topic modeling: (1) a customized topic model is developed to capture and formalize the interdisciplinary feature; and (2) the two algorithms Diversity Subgraph...

The detection of communities in large social networks is receiving increasing attention in a variety of research areas. Most existing community detection approaches focus on the topology of social connections (e.g., coauthor, citation, and social conversation) without considering their topic and...

An integrated optimization simulation model has been developed based on an input-output approach to mitigate water pollution and water scarcity through embedding environmental economic policies and applicable technologies into a complex environ-economic system to obtain an optimal set of...