One advantage of monopoly firms is that

Question

BlackTom AI · Accepted Answer

A monopoly can exploit large-scale production to lower average costs, so they can achieve economies of scale.

1) Relevant concepts:
- Monopoly: a single seller facing the market demand curve, with no close substitutes and barriers to entry.
- Economies of scale: when average cost (AC) falls as output increases, often because fixed costs are spread over more units.
- Profit-maximizing monopoly rule: choose output where marginal revenue (MR) = marginal cost (MC), then set price from the demand curve (so P > MR and typically P > MC).

2) Step-by-step reasoning:
- A monopoly is the sole producer and therefore can expand output without immediate entry by competitors. If the firm’s AC curve is downward-sloping over the market range (common when fixed costs are high), increasing output reduces AC — this is economies of scale.
- Natural monopolies arise when a single large firm can supply the entire market at lower cost than multiple smaller firms (e.g., utilities). In that situation, one large firm is more efficient.
- By contrast, in perfect competition many small firms produce; they cannot individually grow to the market-serving scale that yields the same AC reductions.

3) (No numeric calculation is required. The logical intermediate steps are: define monopoly → note ability to scale → connect scaling to falling average costs → conclude advantage.)

4) Why the correct answer is correct:
Because the monopoly’s market power and lack of immediate competitors allow it to expand to a size where fixed costs are spread over many units, lowering average costs—i.e., achieving economies of scale.

5) Why other options are incorrect:
- a. Producing a homogeneous product is not an advantage unique to monopolies; many market structures (including perfect competition) feature homogeneous products. Monopolies often sell a unique product.
- c. Monopolies typically charge higher prices and produce less output than perfectly competitive firms, not lower prices/more output.
- d. A monopoly does not set price equal to marginal cost; it sets price above MC because P is read off the demand curve at the MR=MC quantity.

6) Conclusion:
Therefore option b (“they can grow to a large size, enabling them to achieve economies of scale”) is correct, matching the provided answer.

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