Title of article :
Study of efficiency and productivity growth in opencast and underground coal mining in India: a DEA analysis
Author/Authors :
Mudit Kulshreshtha، نويسنده , , Jyoti K. Parikh، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2002
Keywords :
DEA , Coal mining , Total factor productivity , Efficiency
Journal title :
Energy Economics
Journal title :
Energy Economics