Price determination: perfect competition, monopolistic competition, oligopoly, monopoly, price discrimination - One Line Questions

1. Which of the following is an example of product differentiation in monopolistic competition? — A software company offering slightly different versions of its operating system.
2. A natural monopoly arises when: — A single firm can supply the entire market at a lower cost than two or more firms.
3. A firm that can successfully price discriminate must have: — Significant market power and the ability to prevent resale.
4. What is a characteristic feature of oligopolistic markets? — Significant barriers to entry
5. Price leadership in an oligopoly occurs when: — One dominant firm sets the price and others follow.
6. In the long run, a perfectly competitive firm operates at the minimum point of its Average Total Cost (ATC) curve, reflecting: — Productive efficiency
7. In the long-run equilibrium of monopolistic competition, firms operate: — To the left of the minimum point of their ATC curve.
8. A firm is practicing third-degree price discrimination if it: — Charges different prices to different groups of consumers (e.g., students, seniors).
9. In an oligopoly, firms may engage in price wars, which are characterized by: — Frequent and substantial price cuts
10. Under perfect competition, the demand curve faced by an individual firm is: — Perfectly elastic
11. Which of the following is a characteristic of a monopoly? — Control over supply and price
12. In monopolistic competition, firms earn supernormal profits in the short run but tend towards normal profits in the long run due to: — Free entry and exit of firms
13. In monopolistic competition, the product is: — Differentiated
14. Price discrimination is illegal under certain conditions, particularly when it: — Creates a monopoly
15. The condition P > MR for a monopolist implies that the monopolist: — Has market power to set prices
16. Which of the following is a characteristic of monopolistic competition but not perfect competition? — Product differentiation
17. A monopolist faces a downward-sloping demand curve, which means that to sell more units, the monopolist must: — Lower the price
18. What is the defining characteristic of a monopoly market structure? — A single seller with no close substitutes
19. In perfect competition, the firm's supply curve is the: — Marginal cost curve above AVC.
20. A monopolist maximizes profit by producing at the output level where: — Marginal Revenue (MR) equals Marginal Cost (MC)
21. The shutdown point for a perfectly competitive firm in the short run occurs when the price is equal to: — Minimum Average Variable Cost (AVC)
22. In which market structure are there a large number of buyers and sellers trading a homogeneous product? — Perfect Competition
23. The 'kinked demand curve' model is often associated with which market structure, attempting to explain price rigidity? — Oligopoly
24. Which market structure has the lowest degree of market power for individual firms? — Perfect Competition
25. Which market structure is characterized by strategic decision-making where each firm's actions depend on the anticipated actions of its rivals? — Oligopoly
26. Which market structure is characterized by 'few dominant firms'? — Oligopoly
27. In monopolistic competition, the long-run equilibrium is characterized by: — P > MC
28. Which market structure features a large number of firms selling differentiated products? — Monopolistic Competition
29. Price discrimination is the practice of selling the same product at different prices to different buyers. This is typically possible for firms operating under which market structure? — Monopoly
30. A cartel is a form of: — Collusion in Oligopoly
31. Which market structure results in the highest price and lowest output compared to others, assuming similar cost conditions? — Monopoly
32. Which market structure offers the greatest potential for non-price competition (e.g., advertising, branding)? — Monopolistic Competition
33. Barriers to entry are typically highest in which market structure? — Monopoly
34. The Lerner Index, a measure of market power, is calculated as (P - MC) / P. It is typically highest for firms operating under: — Monopoly
35. Which market structure is most likely to lead to both productive and allocative inefficiency? — Monopoly
36. The demand curve for a firm in monopolistic competition is: — Downward sloping and more elastic than a monopoly's
37. In perfect competition, the industry demand curve is: — Downward sloping
38. In the short run, a monopolist will continue to produce as long as: — Price is greater than or equal to Average Variable Cost.
39. A situation where firms in an oligopoly compete aggressively on price is known as: — Price war
40. In an oligopoly market, the actions of one firm significantly impact the others. This is known as: — Interdependence
41. If a firm can charge different prices to different customers for the same product, it is likely engaging in: — Price discrimination
42. Which of the following is a key characteristic of oligopoly that distinguishes it from monopolistic competition? — Significant barriers to entry
43. If a firm in monopolistic competition lowers its price, its competitors are likely to: — Match the price reduction
44. In perfect competition, the long-run equilibrium occurs when firms earn: — Normal profits (Zero economic profit)
45. Which condition must be met for a firm to successfully practice price discrimination? — The markets for the product must be separable and have different price elasticities of demand.
46. In the context of perfect competition, the industry supply curve is derived from: — The sum of the marginal cost curves of individual firms above their shutdown points.
47. If a monopolist can perfectly price discriminate (first-degree price discrimination), it will produce: — The same output as a perfectly competitive industry.
48. If marginal cost is constant, a monopolist practicing third-degree price discrimination will charge: — A higher price in the market with less elastic demand.
49. Which of the following is NOT a condition required for price discrimination? — The price elasticity of demand must be the same across all groups.
50. What is the primary goal of a cartel? — To act like a single monopolist and maximize joint profits
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