Evaluation and heterogeneity of the green total factor productivity of Shandong Province, China: a super-SBM and GML analysis.

Sci Rep · 2025 · PMC12214723 · PMID 40595171

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a decreasing trendno p-value reported

2 , before 2011, the GML index was basically less than 1 and showed a decreasing trend year on year.

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