Table 4: Group-wise mean efficiency without (with) considering co-skewness and co-kurtosis.

GroupWOSKWSK

Engineering0.90770.9149
Food and allied products0.99790.9982
Fuel and power0.97930.9951
Textiles0.95090.9616
Pharmaceuticals and chemicals0.90690.9116
Services and real estate0.92000.9365
Cement0.88070.9048
Tannery industries0.92980.9340
Ceramic industries0.99980.9999
Miscellaneous0.99840.9989