Suppose a competitive market is comprised of firms that face identical cost curves. The firms experience an increase in demand that results in positive profits for the firms. Which of the following events are then most likely to occur?(i)New firms will enter the market.(ii)In the short run, price will rise; in the long run, price will rise further.(iii)In the long run, all firms will be producing at their efficient scale.

(i)New firms will enter the market.

(iii)In the long run, all firms will be producing at their efficient scale

Explanation:

A perfect competition is characterised by many buyers and sellers of homogenous goods and services. Market price is set by the forces of demand and supply.

If firms are earning positive profits, in the long run new firms would enter into the industry and this woold drive positive profits to zero. As a result , firms would be operating at the efficient scale.

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