Research Article
Analyzing the Investment Behavior in the Iranian Stock Exchange during the COVID-19 Pandemic Using Hybrid DEA and Data Mining Techniques
Table 6
Efficiency score for 2019.
| DMU | Company | Efficiency |
| DMU01 | Sugar and candy | 1 | DMU02 | Other nonmetallic products | 1 | DMU03 | Tile | 1 | DMU07 | Medicinal investment | 1 | DMU10 | Multi-industrial investment | 1 | DMU19 | Chemical investment | 1 | DMU20 | Car company | 1 | DMU21 | Basic metals | 1 | DMU23 | Bank | 1 | DMU09 | Computer | 0.7 | DMU11 | Extraction of minerals | 0.62 | DMU14 | Drilling company | 0.6 | DMU08 | Manufacturing company | 0.56 | DMU06 | Food products except sugar | 0.51 | DMU05 | Investment | 0.47 | DMU04 | Cement and lime company | 0.4 | DMU15 | Mediators | 0.3 | DMU12 | Machinery | 0.29 | DMU17 | Telecommunication | 0.29 | DMU22 | Technical and engineering | 0.25 | DMU13 | Mass, real estate | 0.22 | DMU16 | Insurance company | 0.15 | DMU18 | Transportation | 0.03 |
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