Question 1

At what production level does a monopolist maximize profit?

Accepted Answer

A monopolist maximizes profit where marginal cost equals marginal revenue. At this equilibrium point, the MC curve intersects the MR curve from below. Producing at this level balances additional costs against additional revenues, ensuring the firm captures maximum profitability given its unique market position as the sole producer.

Question 2

Why does a monopolist's marginal revenue curve slope downward?

Accepted Answer

A monopolist faces a downward-sloping marginal revenue curve because it must lower prices to sell additional units. Unlike firms in perfect competition, the monopolist cannot sell more output without reducing the price for all units sold. This steep downward slope reflects the trade-off between quantity and price inherent in the monopolist's market power.

Question 3

What happens if a monopolist produces below the MC equals MR point?

Accepted Answer

If a monopolist produces below the equilibrium where MC equals MR, the firm misses potential profits. At lower production levels, the revenue from selling additional units exceeds their production cost, meaning the monopolist leaves money on the table by not expanding output to the profit-maximizing quantity.

Question 4

What is the difference between marginal cost and marginal revenue?

Accepted Answer

Marginal cost is the additional cost of producing one more unit, while marginal revenue is the additional revenue gained from selling one more unit. As production increases, marginal cost typically rises due to diminishing productivity and higher variable costs like labor and raw materials. Marginal revenue, conversely, declines as the monopolist must lower prices to sell more.

Question 5

Why does producing beyond the MC equals MR point reduce monopoly profits?

Accepted Answer

Producing beyond the point where MC equals MR results in lower profits because the cost of making each additional unit exceeds the revenue it generates. At this stage, marginal cost surpasses marginal revenue, meaning each extra unit sold actually reduces total profit rather than increasing it.

Question 6

How does diminishing productivity affect a monopolist's marginal cost curve?

Accepted Answer

Diminishing productivity causes a monopolist's marginal cost curve to slope upward. As production increases, each additional unit becomes more expensive to produce due to rising variable costs for labor and raw materials. This upward-sloping MC curve reflects the increasing expense of expanding output beyond efficient capacity levels.

Question 7

How can a monopolist use the MC equals MR rule to find optimal output?

Accepted Answer

A monopolist identifies the profit-maximizing output by locating where its marginal cost curve intersects its marginal revenue curve from below. At this intersection point, the firm produces the precise quantity that balances additional costs against additional revenues. This approach allows the monopolist to determine the optimal production level given unique market conditions as the sole producer.

垄断中的利润最大化