Liu, F. 2025. Frontier Assessment of Green Economic Efficiency in China’s High-quality Development Stage: An Empirical Comparative Study based on Non-parametric, Parametric and Semi-parametric Methods. Frontiers in Economics and Management. 6, 12 (Dec. 2025), 15–27. DOI:https://doi.org/10.6981/FEM.202512_6(12).0002.