Answer c (i) Total product with 4 workers is 525
Total product/Number of workers |
dTotal Product/dWorkers |
||
Worker |
Average Product |
Marginal Product |
Total Product |
3 |
150 |
450 |
|
4 |
131.25 |
75 |
525 |
Average Product = Total product/Number of workers
With 3 workers, average product is 150.
Therefore, total product with 3 workers is 150*3 i.e. 450
Marginal Product is addition to the total product when one more unit of worker is employed. We know that marginal product of 4th worker is 75. Therefore, total product with 4 workers is 450+75 i.e. 525
(ii) The minimum efficient scale (MES) of production is the lowest point on a total cost curve at which a company can produce its product at a competitive price. At this point, the firm achieves the economies of scale which is necessary to compete efficiently in the market.
(iii)
Case I
F(L,K) = Q = 300K + 25L
Suppose we increase inputs by λ times
F(λL, λK) = 300λK +25λL
F(λL, λK) = λ(300K +25L)
F(λL, λK) = λ(Q)
From above we can observe that when inputs are increased by λ times output increases by λ times. Thus, production function exhibits constant returns to scale.
Case II
F(L,K) = Q = 50K0.3L0.5
Suppose we increase inputs by λ time
F(λ L, λ K) = 50 (λ K)0.3 (λ L)0.5
F(λ L, λ K) = (λ0.3) (λ0.5) [50 K0.3L0.5]
F(λ L, λ K) = (λ0.3+0.5) [50 K0.3L0.5]
F(λ L, λ K) = (λ0.8) [50 K0.3L0.5]
F(λ L, λ K) = (λ0.8) Q
From above we can observe that when inputs are increased by λ times, output increases by λ0.8 times. Since increase in output is less than increase in inputs, this production function exhibits decreasing returns to scale.
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