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Question
Giving reason, comment on the shape of Production Possibilities Curve based on the following table :
| Good X (units) | Good Y (units) |
| 0 | 4 |
| 1 | 3 |
| 2 | 2 |
| 3 | 1 |
| 4 | 0 |
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Solution
Based on the below schedule, we can say that PPC is a downward sloping straight line. This is because the opportunity cost of producing one good (i.e. Good X) in terms of another (i.e. Good Y) remains the same, that is, 1 (ignoring the minus sign).
| Good X (units) | Good Y (units) | Opportunity Cost |
| 0 | 4 | - |
| 1 | 3 | 1 |
| 2 | 2 | 1 |
| 3 | 1 | 1 |
| 4 | 0 | 1 |
The following figure depicts the shape of PPC.
Thus, the shape of PPC is downward sloping straight line which can be attributed to the constant opportunity cost.
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