This research investigates the bidirectional cointegration relationship between environmental, social, and governance (ESG) performance and corporate green innovation with a panel of 770 Chinese listed firms during the 2011-2020. We find that there exists a long-run bidirectional comovement between ESG performance and corporate green innovation output. ESG performance exerts a short-run and long-run causal link with green innovation output. The panel cointegration test and VECM estimation also support that ESG performance moves together with green innovation output for clean industries, while ESG performance only presents a long-run relationship to green invention patents output for pollution industries. Our findings offer important value for policymakers and enterprises to propose an effective strategy to stimulate green innovation and improve ESG score.

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Using data from 1986-2005, the present paper estimates the impact of direct knowledge spilled over from G-7 countries on China's economy. We use telephone line penetration rates and personnel flows to estimate the direct spillover effect. Our results show that direct knowledge spillovers through telecommunication networks and personnel flows are important components of international R&D spillovers in China. These direct channels of spillover effectively accelerate China's economic growth. Therefore, China should invest more in human capital and in its telecommunication network to enhance the absorptive capacity of direct R&D spillovers, and to increase communication with other nations, in particular the USA and Japan. More subsidies to domestic R&D research and purchase of intermediate goods will help to raise China's R&D intensity. Copyright (c) 2010 The Authors China & World Economy (c) 2010 Institute of World Economics and Politics, Chinese Academy of Social Sciences.

This paper uses patent data from the U.S. Patent and Trademark Office to investigate the implications of inventor collaboration and joint assignee ownership, both domestic and international, on patent quality as measured by the number of claims and citations associated with a patent. Specifically, we compare the quality implications of research collaboration and joint ownership for the quality of U.S. and Chinese patents. Overall, we find that domestic inventor collaboration yields higher quality results for U.S. patents than Chinese patents. However, for China, international collaboration, both for inventors and assignee ownership is associated with higher quality outcomes for Chinese patents than for U.S. patents. We also find that the incidence of inventors sharing assignee ownership is significantly higher in China. We hypothesize that this difference reflects a need in China to extend patent ownership to inventors for the purpose of recruiting and incentivizing a relatively limited supply of high-quality researchers, whereas in the U.S. the abundance of such researchers is retained largely through wage and bonus compensation.