Final answer:
Both monopolies and monopolistic competitors can make unique goods without close substitutes, have zero economic profit in the long run, and can have low barriers to entry.
Step-by-step explanation:
Monopolies and Monopolistic Competitors
- Makes unique goods without close substitutes: Both monopolies and monopolistic competitors can make unique goods without close substitutes.
- Does not produce at minimum average total cost in the long run: Monopolies do not produce at minimum ATC in the long run, but monopolistic competitors may or may not produce at minimum ATC.
- Has zero economic profit in the long run: Both monopolies and monopolistic competitors can have zero economic profit in the long run.
- Charges a price above marginal cost of production: Monopolies charge a price above marginal cost, while monopolistic competitors may or may not charge a price above marginal cost.
- Has high barriers to entry/exit: Monopolies have high barriers to entry/exit, while monopolistic competitors have low barriers to entry.
- Low barriers to entry lead to market entry when profits exist: Monopolistic competitors have low barriers to entry, which can lead to market entry when profits exist.