Do green technology innovations contribute to carbon dioxide emission reduction? Empirical evidence from patent data
Do green technology innovations contribute to carbon dioxide emission reduction? Empirical evidence from patent data
复制标题
绿色技术创新有助于二氧化碳减排吗？
DOI：
10.1016/j.techfore.2019.06.010
复制
发表时间：
2019-09-01
影响因子：
12
通讯作者：
Yan, Zheming
中科院分区：
文献类型：
--
作者：
Du, Kerui;Li, Pengzhen;Yan, Zheming
本文基于1996 - 2012年71个经济体的数据面板，研究了绿色技术创新对二氧化碳排放的影响。具体而言，我们研究了收入水平是否对绿色技术创新的效果有影响。研究发现，绿色技术创新对经济增长的影响存在单一的收入门槛效应。具体而言，绿色技术创新对收入水平低于阈值的经济体减少二氧化碳排放量的贡献不大，而对收入水平超过阈值的经济体，减缓效应则很大。但政权的过渡发生在极高的收入水平上。此外，人均CO2排放量与人均GDP呈倒U型关系，城市化水平、产业结构、贸易开放度和能源消费结构对CO2排放量也有显著影响。最后，本文建议通过机制创新来降低绿色技术在欠发达经济体的扩散成本。
This paper investigates the impact of green technology innovations on carbon dioxide (CO2) emissions based on a data panel covering 71 economies from 1996 to 2012. Specifically, we examine whether the level of income matters for the effect of green technology innovations. It is found that the impact of green technology innovations exists a single threshold effect regarding the income level. Specifically, green technology innovations do not significantly contribute to reducing CO2 emissions for the economies whose income levels are below the threshold while the mitigation effect becomes significant for those whose income levels surpass the threshold. But the transition of regime occurs at an extremely high-income level. In addition, we find that the relationship between per capita CO2 emissions and per capita GDP is inverted U-shaped, and urbanization level, industrial structure, trade openness, and energy consumption structure also significantly affect CO2 emissions. Finally, this paper suggests that mechanism innovations should be implemented to reduce the diffusion cost of green technology in undeveloped economies.