Research Article
Analyzing the Investment Behavior in the Iranian Stock Exchange during the COVID-19 Pandemic Using Hybrid DEA and Data Mining Techniques
| DMU | Company | Efficiency |
| DMU 1 | Sugar and candy | 1 | DMU 2 | Other nonmetallic products | 1 | DMU 3 | Tile | 1 | DMU 7 | Medicinal investment | 1 | DMU10 | Multi-industrial investment | 1 | DMU19 | Chemical investment | 1 | DMU20 | Car company | 0.92 | DMU21 | Basic metals | 0.86 | DMU23 | Bank | 0.72 | DMU09 | Computer | 0.66 | DMU11 | Extraction of minerals | 0.59 | DMU14 | Drilling company | 0.54 | DMU 8 | Manufacturing company | 0.53 | DMU 6 | Food products except sugar | 0.52 | DMU 5 | Investment | 0.48 | DMU 4 | Cement and lime company | 0.44 | DMU15 | Mediators | 0.42 | DMU12 | Machinery | 0.25 | DMU17 | Telecommunication | 0.23 | DMU22 | Technical and engineering | 0.17 | DMU13 | Mass, real estate | 0.15 | DMU16 | Insurance company | 0.08 | DMU18 | Transportation | 0.03 |
|
|