RESUMO
Industrial convergence is a key means to transform the economic mode. Taking the convergence of manufacturing and producer services in China as the research object, this study explored how industrial convergence affects regional green development efficiency (GDE). First, a coupling evaluation system was established to measure industrial convergence degree, and the directional distance function-based slacks-based measure was combined with the global Malmquist-Luenberger index to measure GDE. Second, we employed spatial econometric models to analyze the relationship between industrial convergence and GDE. Then, using the spatial conditional process analysis, a unified framework of green innovation, investment structure, and energy intensity was constructed to investigate the transmission mechanism involved. The results showed that: (1) Regional GDE and green innovation had a spatial dependence. (2) Considering the spatial correlation, industrial convergence is conductive to regional GDE. (3) Green innovation is an effective path by which industrial convergence improves regional GDE. (4) In this mediating process, the investment structure and energy intensity play a moderating role. The investment bias in high-tech industries increases the role of industrial convergence in promoting regional GDE and green innovation, while the moderating direction of energy intensity is opposite. In addition, there is a crowding-out effect in energy dependence, which hinders the effectiveness of green innovation.
Assuntos
Indústrias , Desenvolvimento Sustentável , China , Desenvolvimento Econômico , Eficiência , Análise EspacialRESUMO
Objective: This paper examines the impact of healthcare industry convergence on the performance of the public health system in the eastern, central, and western regions of China. Methods: Public health performance was measured by a composite index of three standards: average life expectancy at birth, perinatal mortality, and maternal mortality. The healthcare industry convergence was measured using a coupling coordination degree method. The spatial lag, spatial error, and spatial Durbin models were used to estimate the effect of healthcare industry convergence on public health system performance and this effect's spatial dependence and heterogeneity across eastern, central, and western China using panel data from 30 Chinese provinces from 2002 to 2019. Results: The convergence of the healthcare industry significantly promotes regional public health [ß =0.576, 95% CI: (0.331,0.821)]. However, the convergence does not have a spatial spillover effect on the public health system at the national level. Additionally, analysis of regional heterogeneity shows that the direct effects of healthcare industry convergence on public health are positive and statistically significant for Eastern China, statistically insignificant for Central China, and positive and statistically significant for Western China. The indirect effects are negative, statistically significant, positive, statistically significant, and statistically insignificant for these three regions, respectively. Conclusion: Policy efforts should strengthen the convergence between the healthcare industry and relevant industries. It can produce more current healthcare services to improve public health and reduce regional health inequality.
RESUMO
Solar energy has gradually become one of the priorities to sustainable energy supply, driven by the urgent need for energy security and the imminent threats of climate change. Diverse photovoltaic (PV) technologies can be applied and integrated with various industries to significantly increase the usage and output value of different assets, such as land appreciation within limited space. In order to quantitatively evaluate the overall performance of various integrated applications of PV, a comprehensive benefit evaluation index system, involving economy, environment, society, and land use, was proposed and applied to three selected PV projects, PV-JWZ, PV-NHPZ, and PV-DPBD, namely, in Tianjin, China. The results indicated that these projects all have great development potential due to their remarkable benefits of energy saving and emission reduction. Therein, the total income of PV-JWZ within 25 years is equal to 1441.9 million CNY, which is dominated by extra income from industrial convergence; PV-NHPZ can offset 231.8 t/(a·hm2) CO2, attributed to its larger installed capacity; while PV-DPBD would acquire strong policy support for distributed PV to further promote the zero-carbon buildings, owing to lower land consumption of 1.4 hm2/MW. By revealing the effectiveness and feasibility of various PV projects, this study could provide a theoretical reference for the promoting and planning various integrated applications of PV in different areas, according to local conditions.
Assuntos
Energia Solar , ChinaRESUMO
Industrial structure change is an important cause of air pollution in China. Regarding the "Triple Play" reform (TPR) led by the Chinese government as a quasi-natural experiment of industrial convergence, this study constructs an analysis framework for the impact of industrial convergence on air pollution. Based on panel data at the Chinese city level from 2004 to 2016, this paper empirically examines the impact of industrial convergence on air pollution by using a difference-in-difference model, the propensity score matching method, and a mediation model. The results show that (1) the TPR significantly alleviates air pollution of cities; (2) the TPR reduces air pollution by improving green technological innovation and industrial structural upgrading; (3) the TPR significantly reduces air pollutants in the southern, coastal, non-resource-based cities and cities with higher technological absorption capacity, but its impact in the northern, inland, resource-based cities and cities with lower technological absorption capacity is not remarkable. This research provides feasible suggestions for the government to promote industrial convergence through deregulation policies and then reduce air pollution.