This study analyzes environmental technology development and diffusion patterns in 56 countries and for the time period 2005–2014 to provide an up-to-date assessment on underlying determinants. Foreign direct investment, human-knowledge development, institutional efficiency and quality of governance are taken into account to assess the cumulative nature of environmental technology development and diffusion. Static specifications were implemented, rejecting the EKC hypothesis and producing inverted N-shape relationships in the case of technology development and N-shape relationships in the case of diffusion. The turning points are all well within the sample and those of technology development are lower compared to the ones of diffusion.

这项研究分析了2005年至2014年期间56个国家的环境技术的发展和扩散模式，以提供有关潜在决定因素的最新评估。考虑了外国直接投资，人类知识发展，机构效率和治理质量，以评估环境技术发展和传播的累积性质。实施了静态规范，拒绝了EKC假设，在技术开发的情况下产生了倒N形关系，在扩散的情况下产生了N形关系。转折点在样本中都很好，而技术开发的转折点比扩散的转折点要低。