Effects of Patent Policy on Outputs and Commercialization of Academic Patents in China: A Spatial Difference-in-Differences Analysis

Research on the spatial spillover effect of China's carbon emission trading on total-factor carbon emission efficiency of the power industry

Improving the carbon emission efficiency in the power industry is a crucial step to achieve China's "double carbon" goal. Carbon emission trading (CET) is an important tool for carbon emission reduction in the power industry. This paper collects data on the power industry of 30 provinces in China from 2005 to 2020 and applies an undesirable super-efficiency epsilon-based measure (EBM) model to measure the total-factor carbon emission efficiency of the power industry (CEEP). A spatial difference-in-differences (SDID) model is constructed to analyze the spatial spillover effects of China's CET on CEEP. Then, a spatial mediating effect model is employed to explore the influence mechanism of CET. The results show that (1) during the sample period, CEEP shows a trend of fluctuating growth, and the overall level of CEEP is still relatively low; (2) CET has a significant promotion effect on CEEP, resulting in an average increase of 6.02% in the efficiency value of the pilot areas; (3) the spatial spillover effect test proves that CET not only improves the CEEP in the pilot areas, but also promotes the improvement of CEEP in the adjacent areas; and (4) the influence mechanism test shows that CET can improve CEEP by reducing energy intensity, promoting technological progress, and upgrading industrial structure. This study provides a new perspective for the measurement of CEEP and expands the research on the emission reduction effect of CET in the power industry. Finally, based on the research results, this study proposes targeted suggestions to provide reference for the government to formulate emission reduction policies.

Commercialization of academic patents in Chinese universities: Antecedents and spatial spillovers

The commercialization of academic patents is a basic means for universities to promote economic growth and upgrade the industrial innovation of enterprises. However, among developing countries, the commercialization rate of university patents is generally low. This study utilizes data from 65 universities which are directly under the Ministry of Education of China to analyze the influencing factors and mechanisms of academic patent commercialization. The findings show that the proportion of associate professors, the size of service staff transforming research and development achievement, and the proportion of basic research funding in universities are positively correlated with the commercialization rate of university patents. In addition, these factors indirectly affect the commercialization of university patents by affecting neighboring universities; that is, there are spatial spillover effects in the commercialization of university patents between neighboring universities. These empirical results indicate that universities can promote the commercialization of university patents by optimizing the structure of faculty, developing the R&D achievement transformation service staff team, and strengthening investment in basic research.

Spatial Interactions and the Commercialisation of Academic Patents: The Chinese Experience

Studies on academic patent commercialisation are well documented. However, spatial effects are seldom considered, which could lead to potentially misleading analytical results. This study addresses this concern by applying the spatial analysis method to investigate how university-level factors and commercialising academic patents are related. Using a comprehensive dataset of university patents from 1815 Chinese universities in 2016, we find that public research funding of universities, industrial research funding, the number of scientific research personnel, the number of monographs published, and the number of awarded achievements are positively related to the commercialisation of academic patents. However, the number of teaching and research personnel and the number of academic papers published are negatively related. There are positive spatial spillover effects in commercialising academic patents among neighbouring universities, but there will be negative spatial spillover effects in funding competition.