Research Article
Integrated DEA Models and Grey System Theory to Evaluate Past-to-Future Performance: A Case of Indian Electricity Industry
Table 7
Correlation coefficient: March 2014 data.
| | Staff cost | Energy purchase | Other expenses | Equity capital | Net income | Net profit | Basic EPS |
| Staff cost | 1 | 0.8094686 | 0.8975678 | 0.4946254 | 0.8205856 | 0.779173 | 0.049587 | Energy purchase | 0.8094686 | 1 | 0.9465775 | 0.408433 | 0.9657305 | 0.8404919 | 0.0218223 | Other expenses | 0.8975678 | 0.9465775 | 1 | 0.5341933 | 0.9271514 | 0.8063402 | 0.0046019 | Equity capital | 0.4946254 | 0.408433 | 0.5341933 | 1 | 0.434463 | 0.4620127 | −0.3408736 | Net income | 0.8205856 | 0.9657305 | 0.9271514 | 0.434463 | 1 | 0.9435955 | 0.1093055 | Net profit | 0.779173 | 0.8404919 | 0.8063402 | 0.4620127 | 0.9435955 | 1 | 0.1777289 | Basic EPS | 0.049587 | 0.0218223 | 0.0046019 | −0.3408736 | 0.1093055 | 0.1777289 | 1 |
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