| List-I (Theory) | List-II (Year) |
| (A) Theory X and Theory Y | 1. 1960 |
| (B) Hawthorne studies | 2. 1939 |
| (C) Neo-classical Behavioural Science Approach | 3. 1930 |
| (D) Organizational efficiency | 4. 1947 |
| 5. 1950 |
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