Research on the impact of green finance and abundance of natural resources on China's regional eco-efficiency

This article uses the Super-efficiency DEA mothod to calculate the regional ecological efficiency, and selects a Tobit model to verify the impact of green finance and natural resource abundance on Chinese regional ecological efficiency. Results as follows: (1) The ecological efficiency of the eastern region is highest, and western region is lowest. Most of the low-efficiency areas are concentrated in the west. Then the ecological efficiency of most areas in Chian has shown an increasing trend. (2) From the perspective of explanatory variables, there is a negative correlation between the overall national green finance and eco-efficiency, which is manifested in a non-linear "W-shaped characteristic; green finance and eco-efficiency in the central and western regions have negative correlation and "U"-shaped characteristic of non-linear relationship, but the east of China does not passed the significance test. (3) There is an inverted U-shaped relationship between the country's overall resource abundance and ecological efficiency. And it is not statistically significant in the eastern region, but it shows a significant inverted U-shaped relationship in the central and west of China. (4) The impact of FDI on China's regional eco-efficiency is generally positive. FDI in the central and western regions has negative correlation with eco-efficiency, but FDI in the eastern region is positively related to eco-efficiency; there are all negatively correlated in whole countey and regions between industrial structure and eco-efficiency; the level of regional economic development is generally positively related to regional eco-efficiency, and in the eastern region's eco-efficiency is positive, and the impact on the other two regions is negative.