Marginal Product of labour is inverse'U'-shaped because of :
Marginal Product of labour is inverse'U'-shaped because of :
Solution
✅ Correct Option: 4
As more units of labour are combined with a fixed factor, marginal product first rises, reaches a maximum and then falls. This behaviour of MP is explained by the Law of Variable Proportions, which describes the phases of increasing and diminishing returns to a factor. Hence MP of labour is inverse U-shaped.
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