Wang,Z., Yang,Z., Zhang,Y. and Yin,J.(2012): Energy technology patents - CO2 emissions nexus: An empirical analysis from China. Energy Policy, 42, 248-260.

『エネルギー技術特許−二酸化炭素排出のつながり：中国からの経験的分析』

『Abstract
　Energy technology innovation plays a crucial role in reducing carbon emissions. This paper investigates whether there is relationship between energy technology patents and CO2 emissions of 30 provinces in mainland China during 1997-2008. Gross domestic product (GDP) is included in the study due to its impact on CO2 emissions and energy technology innovation, thus avoiding the problem of omitted variable bias. Furthermore, we investigate three cross-regional groups, namely eastern, central and western China. The results show that domestic patents for fossil-fueled technologies have no significant effect on CO2 emissions reduction; however, domestic patents for carbon-free energy technologies appear to play an important role in reducing CO2 emissions, which is significant in eastern China, but is not significant in central, western and national level of China. The results of this study enrich energy technology innovation theories and provide some implications for energy technology policy making.

Keywords: Energy technology patents; CO2 emissions; Dynamic panel data approach』

1. Introduction
2. Theoretical background
　2.1. The role of energy technology patents in carbon emission reduction
　2.2. The barriers to international energy technology deployment and transfer
3. Energy consumption and energy technologies in China's different regions
　3.1. The division of eastern, central and western China
　3.2. Energy consumption in China's different regions
　3.3. Energy technology in China's different regions
4. Data and methodology
　4.1. Energy technology patents in China's provinces
　4.2. CO2 emissions in China's provinces
　4.3. GDP of China's provinces
　4.4. Model specification and methodology
　　4.4.1. Panel unit root tests
　　4.4.2. Panel cointegration tests
　　4.4.3. Panel causality tests
5. Results and discussion
　5.1. Results of panel unit root tests
　5.2. Results of panel cointegration tests
　5.3. Results and discussion of panel causality tests on fossil-fueled technologies
　5.4. Results and discussion of panel causality tests on carbon-free energy technologies
6. Conclusions and policy recommendations
　6.1. Conclusions
　6.2. Policy recommendations
Acknowledgment
Appendix A. Panel unit root tests and results
　Panel unit root tests
　Results of panel unit root tests
Appendix B. Panel cointegration tests and results
　Panel cointegration tests
　Results of panel cointegration tests
Appendix C. Results of DIF-GMM estimation on fossil-fueled technologies
Appendix D. Results of DIF-GMM estimation on carbon-free energy technologies
References

戻る