Question

Other things equal, if the prices of a firm's variable inputs were to fall: one could not predict how unit costs of production would be affected. marginal cost, average variable cost, and average fixed cost would all fall. marginal cost, average variable cost, and average total cost would all fall. average variable cost would fall, but marginal cost would be unchanged.

Answer 1

The correct option is C) marginal cost, average variable cost, and the average total cost would all fall.

It is correct because if the variable cost falls, it will show its effect on marginal, average variable, and average total costs and eventually these costs will fall. The variable cost is included in the calculation of marginal and total costs. And the average variable cost is derived from total variable cost.

Variable Inputs:

The variable inputs are used in performing the production function. Variable means that can change easily, so, in production, variable inputs fluctuate according to the requirement. Variable inputs include labor, raw material, and other inputs.

Reason for incorrect answers:

Option a) is incorrect because the firm can estimate the per-unit cost after reducing input prices.

Option b) is incorrect because the average fixed does not include variable cost, so it will not fall if the variable cost gets reduced.

Option d) is incorrect because the marginal cost will change according to the change in total cost. And the total cost will fall if the variable cost falls.

Learn more about Marginal cost  :

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