An Empirical Study of Hybrid DEA and Grey System Theory on Analyzing Performance: A Case from Indian Mining Industry

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">Number of DMUs in data: 23</td><td align="center"> </td></tr><tr><td align="left">Number of DMUs with inappropriate data: 0</td><td align="center"> </td></tr><tr><td align="left">Number of evaluated DMUs: 23</td><td align="center"> </td></tr><tr><td align="left">Average of scores: 0.6230249</td><td align="center"> </td></tr><tr><td align="left">Number of efficient DMUs: 13</td><td align="center"> </td></tr><tr><td align="left">Number of inefficient DMUs: 10</td><td align="center"> </td></tr><tr><td align="left">Number of over iteration DMUs: 0</td><td align="center"> </td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Journal of Applied Mathematics

tab7

Table 7

Table 7: An Empirical Study of Hybrid DEA and Grey System Theory on Analyzing Performance: A Case from Indian Mining Industry 