A Perfectly Competitive Market Is in Long-Run Equilibrium

question 90

Multiple Choice

A perfectly competitive market is in long-run equilibrium.At present there are 100 identical firms each producing 5,000 units of output.The prevailing market price is $20.Assume that each firm faces increasing marginal cost.Now suppose there is a sudden increase in demand for the industry's product which causes the price of the good to rise to $24.Which of the following describes the effect of this increase in demand on a typical firm in the industry?

• A)In the short run, the typical firm increases its output and makes an above normal profit.
• B)In the short run, the typical firm's output remains the same but because of the higher price, its profit increases.
• C)In the short run, the typical firm increases its output but its total cost also rises, resulting in no change in profit.
• D)In the short run, the typical firm increases its output, but its total cost also rises. Hence, the effect on the firm's profit cannot be determined without more information.

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Definitions:

Differential Carrier Assembly

The housing that holds the differential gears, pinion bearings, and other components, acting as the main support structure within the differential of a vehicle.

Crown Gear

A circular gear with cogs or teeth set at right angles to its plane, often used in differential drives.

Lube Level

The specific quantity of lubrication fluid required for efficient operation and protection of machinery or vehicle components against friction and overheating.

Filler Hole

An opening or aperture through which a substance, such as oil or fuel, is added to a container, tank, or system.