Unified efficiency of coal mining enterprises in China: An analysis based on meta-frontier non-radial directional distance functions
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DOI: 10.1016/j.resourpol.2020.101581
Abstract: Abstract Evaluating the energy efficiency of coal mining enterprises (CME) is a key factor in formulating science-based energy saving and emission reduction policies. Based on a unique micro-level dataset from 2008 to 2011, this study… read more here.
Keywords: coal mining; meta frontier; unified efficiency; cme ... See more keywords