Environmental regulation, green technological innovation, and eco-efficiency: The case of Yangtze river economic belt in China

The contradiction between economic development and environmental protection has become a major concern in many developing countries. To resolve environmental issues, political and technical measures must be considered. However, because of geographical, climatic, and economic differences, ecological issues need to be resolved at the regional level. This study proposes a complex eco-efficiency (EE) system composed of multidimensional components...