Impacts of Manufacturing Specialized and Diversified Agglomeration on the Eco-Innovation Efficiency—A Nonlinear Test from Dynamic Perspective

Eco-innovation is the main driver of realizing coordinated development resource, environmental and economic systems. This paper measures regional eco-innovation efficiency (EIE) by using Super-Slack Based Measure (SBM) model with undesirable outputs distinguishes different agglomeration patterns based on Chinese data 21 manufacturing sub-industries 30 provinces. In particular, from perspective dynamic evolution agglomeration, nonlinear effects specialized diversified EIE are investigated panel threshold regression models. The results indicate that China’s shows a U-shaped changing trend. impacts have significant three-threshold effects. There exist relationship between EIE, an S-shaped EIE. terms eco-innovation, superior to agglomeration. Overall, there still much room for more than 70% provinces in China increase their optimizing layout To improve achieve sustainable growth, differentiated policies should be formulated various stages regions. addition, driving mechanism strengthened.