NonLinear Effects of Environmental Regulation on Eco-Efficiency under the Constraint of Land Use Carbon Emissions: Evidence Based on a Bootstrapping Approach and Panel Threshold Model.

Int J Environ Res Public Health · 2019 · PMC6572304 · PMID 31091713

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showed a trendno p-value reported

Table 2 shows that the overall eco-efficiency in China was not so efficient compared with the optimal frontier level and showed a trend of declining first and then rising.

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