Which of the following statements is (are) true? i. a firm with market power maximizes profit by producing so that p = mc or mr = mc. ii. if marginal revenue exceeds marginal cost, the firm should expand output to increase profits. iii. if a firm has no costs of production, it should continue producing until marginal revenue falls to zero.

Statement II and III

Explanation:

For Statement I

We know that in a perfect competitive market the profit is maximum where either Marginal Revenue = Marginal Cost, or the Price + Marginal Cost is the point defining the profit.

Therefore, firm having to exercise maximum power in market will produce more up till Marginal Revenue > Marginal Cost.

Therefore, statement I is false.

Statement II

For the time till when the marginal revenue is more than the marginal cost, more and more goods shall be produced to increase the quantum of profit.

as this will assure no losses up to the time where MR>MC.

Thus, statement II is true.

Statement III

If there is no cost of production then entire amount received for a good will be profit, accordingly till the time the marginal revenue does not fall to 0 the goods shall be supplied to consumers, as the entire amount received will be profit with no cost associated.

Thus, statement III is also True.

answer; rapid growth in buyer demand and high buyer switching cost;