Performance Assessment Based on the Relative Efficiency of Indian Opencast Coal Mines Using Data Envelopment Analysis and Malmquist Productivity Index

Biswaranjita Mahapatra, Chandan Bhar and Sandeep Mondal
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Biswaranjita Mahapatra: Department of Management Studies, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
Chandan Bhar: Department of Management Studies, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India
Sandeep Mondal: Department of Management Studies, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India

Energies, 2020, vol. 13, issue 18, 1-21

Abstract: Coal is the primary source of energy in India. Despite being the second-largest coal-producing country, there exists a significant difference in demand and production in India. In this study, the relative efficiency of twenty-eight selected opencast mines from a large public sector undertaking coal company in India for 2018–2019 was assessed and ranked by using data envelopment analysis (DEA). This study used input-oriented DEA with efficiency decomposition to pure technical efficiency, technical efficiency, and scale efficiency. The result showed that 25% and 36% of mines were efficient in technical efficiency and pure technical efficiency, respectively, whereas the eight mines scale efficiency was inefficient with a decreasing return to scale. Further, in this study, theMalmquist Productivity Index (MPI)was employed to measure the efficiency of the selected mines for three consecutive years (2016–2017 to 2018–2019). The result shows that in only three mines the efficiency is continuously improving from 2016–2017 to 2018–2019, whereas in more than 20% of mines the efficiency score is decreasing. Comparing theMPI efficiency and productivity assessment throughout the years, changes in innovation and technology are increasing from 2017–2018 to 2018–2019. Finally, the study concluded with a comprehensive evaluation of each variable with mines performance. The author formulated the strategies, which in turn help coal professionals to improve the efficiency of the mine.

Keywords: coal mines efficiency; data envelopment analysis; Indian opencast mines; Malmquist productive index (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (2)

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