Cheng Y. A Study on the Input-Output Efficiency and Influencing Factors of ESG Investment in Cross-border E-commerce Listed Companies: An Empirical Analysis based on the DEA-Tobit Two-stage Model. FEM [Internet]. 2026 Oct. 10 [cited 2026 Oct. 15];7(10):161-7. Available from: https://fieam.org/index.php/ojs/article/view/342