Green development is an inevitable trend of sustainable development: how does it affect green economic growth as the main channel of green project financing and the core force of building a green financial system? The present article measures the relationship between green credit and sustainable economic growth using a benchmark regression analysis model and explores the main influencing factors and regional characteristics that affect the coupling development of green credit and sustainable economic growth by combining mechanism and heterogeneity tests. The results of the study show that: (i) Green credit has a significant positive contribution to sustainable economic growth. (ii) In terms of the transmission mechanism, industrial upgrading and environmental regulation have a significant impact on sustainable economic growth. (iii) In terms of heterogeneity, the effect of green credit on sustainable economic growth is the most pronounced in the west, followed by the central and eastern regions of China. The policy implications of this study are that green credit in China is an inevitable trend, and that a sound policy supporting the legal system and information communication mechanisms should be promulgated to ensure the effective allocation of resources, thereby promoting the coordinated, sustainable and stable development of environmental protection and the economy.

This paper investigates the economic relationship between logistics performance and export competitiveness based on the iceberg transport cost model and conducts further empirical analysis according to China’s LPI. It finds that the higher the efficiency of logistics and transport, the lower the transportation costs coefficient per unit distance; when logistics and transportation costs decrease, foreign demand for domestic goods increases, as does the export value expressed in domestic prices. Additionally, Spearman’s rank correlation method is used to analyze the relationship between logistics performance index and export level, indicating that logistics performance index has a positive rank correlation with the export level at a significant level of 1%. Moreover, a case study on China’ LPI supports the conclusion derived from the theoretical analysis, and conducive countermeasures are put forward. This research confirms the positive correlation between logistics performance and export competitiveness and proposes specific solutions to enhancing the logistics capabilities of other developing countries.

This paper investigates the economic relationship between logistics performance (LP) and export competitiveness (EC) based on the iceberg transport costs theory and conducts further empirical analysis according to China's logistics performance index (LPI). It finds that the higher the efficiency of logistics and transport, the lower the transportation costs coefficient per unit distance; when logistics and transportation costs decrease, domestic goods demand of foreigners increases, and so does the export value expressed in domestic prices. Additionally, Spearman's rank correlation method is used to analyze the relationship between LPI and export level (EXP), indicating that LPI has a positive rank correlation with the EXP at a significant level of 1%. This research confirms the positive correlation between LP and EC and proposes specific solutions to enhancing the logistics capability in other developing countries.