摘要：
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<p>Achieving carbon neutrality requires high efficiency in agricultural carbon emissions. This study employs a super efficiency Slack Based Measure-Data Envelopment Analysis (SBM-DEA) model to measure the Agricultural Carbon Emission Efficiency (ACEE) of 31 provinces, cities, and autonomous regions within the Chinese Mainland from 2001 to 2021. Additionally, it utilizes the modified gravity model and a social network analysis to establish the spatial correlation relationship of ACEE, and extensively investigates the characteristics and transmission mechanism of China's spatial correlation network structure regarding ACEE. The findings reveal the following: 1) The spatial correlation relationship of China's ACEE from 2001 to 2021 exhibits a complex network structure; 2) in terms of the overall network structure characteristics of the spatial correlation, the ACEE network demonstrates a high degree of correlation and displays a stable temporal evolution trend; 3) concerning the centrality network structure characteristics of the spatial correlation, most provinces in China experience a continuous decline in point centrality and near centrality, while the interdependence of the ACEE between provinces increases; and 4) regarding the clustering characteristics of the spatial correlation, variations exist in the correlation among the four plates of the ACEE. However, they mostly assume a mediating role, and in 2021, the ACEE network sectors witnessed a robust interoperability.</p>
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摘要：
<jats:p>Using 522 nonfinancial listed companies on the Chinese A-share Market during 2008–2016 as the sample, this paper studies the discretion of corporations to fulfill their environmental responsibilities in the face of economic policy uncertainty (EPU) through a panel regression model and a panel quantile regression model. Additionally, the sample is classified and the heterogeneity is analyzed based on the equity nature, the financing constraints and the economic region in which the corporations are located. The conclusions are as follows. First, faced with EPU, the corporations are willing to actively undertake environmental responsibilities, but their marginal propensity to these responsibilities shows a downward trend. Second, under the premise of EPU, the decision-making behavior of different types of corporations to fulfill their environmental responsibilities is heterogeneous, which is embodied in the equity nature, financing constraints and economic region. Third, through the stepwise regression method, this paper further studies the impact mechanism, and finds that the enterprise’s leverage ratio plays a partial mediating role in the relationship between EPU and environmental responsibility of nonfinancial corporations. Our paper provides important policy implications for the government. In the process of requiring corporations to fulfill their environmental responsibilities, relevant government organizations should fully consider the impact of EPU on the corporations’ development, and the level of environmental responsibilities should be controlled based on the type of the corporation. We further suggest that the requirement should be imposed on the corporations to disclose high-quality and reliable environmental protection information. Finally, we recommend that the corporations should adhere to the route of sustainable development.</jats:p>
