Li, Lan-Bing; Hu, Jin-Li - In: Energy Policy 46 (2012) C, pp. 216-224
Most existing energy efficiency indices are computed without taking into account undesirable outputs such as CO2 and SO2 emissions. This paper computes the ecological total-factor energy efficiency (ETFEE) of 30 regions in China for the period 2005–2009 through the slack-based model (SBM) with...