In: Economics
Excluding the case when the government decides to create a
legally-enforced monopoly, which answer below describes the
condition under which a monopoly is likely to emerge through the
growth of a single firm outcompeting its smaller rivals?
a. When the market demand curve intersects with a downward sloping
region of a single firm’s average total cost curve.
b. When the market demand curve intersects with an upward sloping
region of a single firm’s average total cost curve.
c. When a single firm’s marginal revenue curve intersects with that
firm’s marginal cost curve.
d. When a single firm’s marginal revenue curve intersects with that
firm’s average cost curve.
Ans.- (A)
Its the case of natural monopoly. For a natural monopoly the long-run average cost curve (LRAC) falls continuously over a large range of output. As a result, there is room in the market for only one firm to fully exploit the economies of scale that are available and therefore achieve productive efficiency.
Since ATC falls over a large range of output so Market demand curve intersects ATC when it's declining