海南大学学报(社会科学版)

利用非期望产出SBM模型测算了海南省各市县2010—2019年的绿色经济效率，并基于倍差法实证评价了国家生态文明试验区建设对海南绿色经济效率的影响及其机制。研究发现：样本期内海南各市县绿色经济效率明显提高；国家生态文明试验区显著提升了海南绿色经济效率，推动了处理组与对照组之间的差距缩小40.78%；国家生态文明试验区建设通过优化产业结构和强化环境规制提升海南绿色经济效率。上述结论对于海南以及其他省区绿色发展具有重要启示。

Using the unexpected output SBM model, this paper calculates the green economic efficiency in the regions in Hainan Province from 2010 to 2019. The difference in difference method is adopted to empirically evaluate the impact of the construction of the national pilot zone for ecological conservation on the green economic efficiency in Hainan and its mechanism. The results show that the green economic efficiency of these regions in Hainan has improved significantly within the sample period. The national pilot zone for ecological conservation has significantly improved the green economic efficiency in Hainan, and reduced the gap between the treatment group and the control group by 40.78%. The construction of the national pilot zone for ecological conservation improves the green economic efficiency in Hainan by optimizing the industrial structure and strengthening the environmental regulation. The conclusions have important implications for the green development of Hainan and other provinces and regions.