| List-I | List-II |
| (a) Comparative Cost Theory | (i) Adam Smith |
| (b) Opportunity Cost Theory | (ii) Gottfried Haberler |
| (c) Factor Endowment Theory | (iii) David Ricardo |
| (d) Absolute Cost Theory | (iv) Eli Heckscher and Bertil Ohlin |
| (a) | (b) | (c) | (d) | |
| 1 | (i) | (ii) | (iii) | (iv) |
| 2 | (iii) | (ii) | (iv) | (i) |
| 3 | (iv) | (iii) | (ii) | (i) |
| 4 | (i) | (iv) | (iii) | (ii) |