Estimation of Shadow Price of Major Pollutants in China’s Chemical Firms: An Empirical Analysis Based on Directional Distance Function
CHEN Xing, XU Jintao
Acta Scientiarum Naturalium Universitatis Pekinensis . 2021, (2): 341 -350 .  DOI: 10.13209/j.0479-8023.2021.008

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