Practicing Success

Target Exam

CUET

Subject

Economics

Chapter

Micro Economics: Theory of Firms under Perfect Competition

Question:
An increase in the input prices of the firm leads to
Options:
upward shift of MC curve
leftward shift of supply curve
increase in average cost
all of above
Correct Answer:
all of above
Explanation:
If the price of an input (say, the wage rate of labour) increases, the cost of production rises. The consequent increase in the firm’s average cost at any level of output is usually accompanied by an increase in the firm’s marginal cost at any level of output; that is, there is a leftward (or upward) shift of the MC curve. This means that the firm’s supply curve shifts to the left.