Fig. 2: Regional differences and income differences of the impact of China’s financial development on SDGs of BRI participating countries.

a The impact of China’s financial development scale, structure and efficiency on SDGs of different BRI participating countries. b The impact of China’s financial development on Asian and European SDGs. c The impact of China’s financial development on SDGs of high-income, middle-income and low-income BRI participating countries. d The impact of financial development on the SDG of the Maritime Silk Road participating countries and the Land Silk Road.