Economics Questions & Answers: Market Structures & Efficiency
Monopolistic Competition
Question 1
True or False: In monopolistic competition, firms earn a normal profit and have excess capacity in the long run.
Question 2
True or False: Advertising costs are fixed costs, and cost per unit decreases as production increases.
Question 3
In the model of the kinked demand curve, why is demand less elastic well below the market price?
Question 4
In a dominant duopoly, how does the dominant firm act, and how do smaller companies in the market behave?
Question 5
Who are the creators of game theory?
Question 6
What is the term for an agreement where farmers agree to produce less to raise prices and reap greater benefits?
Question 7
What is a cartel?
Question 8
In a repeated game, what role do penalties play in encouraging cooperation?
Question 9
What type of profit does a firm in a contestable market earn?
Question 10
How does the limitation of price affect potential entrants to a market?
Question 11
Define monopolistic competition.
Question 12
Provide examples of product differentiation.
Question 13
How can a monopolistically competitive firm increase its economic benefit?
Question 14
Compare the selling costs of a monopolistically competitive firm to those of a competitive or monopoly firm.
Question 15
What is the term for a market structure in which a small number of companies compete?
Oligopoly and Game Theory
Question 16
In game theory, what do strategies encompass?
Question 17
What is a payoff matrix?
Question 18
Describe the concept of a dominant strategy in game theory.
Question 19
What is the typical outcome of the prisoner’s dilemma game?
Question 20
Define a duopoly.
Monopoly
Question 21
How does a copyright create a monopoly?
Question 22
How does a patent create a monopoly?
Question 23
Which of the following is more likely to be a monopoly: a local power distributor or a local grocery store?
Question 24
What is a natural monopoly?
Question 25
Why might firms practice price discrimination?
Question 26
At what output level will a single-price monopolist produce?
Question 27
What is the maximum amount of rent that can be earned by a monopoly?
Question 28
Why does a single-price monopoly cause a deadweight loss?
Question 29
What happens to consumer surplus when a monopoly perfectly price discriminates?
Question 30
Does a perfectly discriminating monopoly produce a higher or lower output than a perfectly competitive industry?
Question 31
When does a monopoly occur?
Question 32
What are barriers to entry?
Question 33
What type of monopoly is created by the granting of a patent or copyright?
Question 34
What creates a natural monopoly?
Question 35
What is price discrimination?
Question 36
What is a single-price monopoly?
Question 37
Define producer surplus.
Question 38
What does deadweight loss measure?
Question 39
What is rent-seeking?
Question 40
Define consumer surplus.
Perfect Competition
Question 41
What is the minimum efficient scale?
Question 42
How does a firm maximize profit or economic benefit under perfect competition?
Question 43
If a firm produces 100 units at a marginal cost of $11 and the market price is $10, how can it maximize its profit?
Question 44
Describe the short-run supply curve of a perfectly competitive industry.
Question 45
What happens when firms in a competitive industry earn positive economic profits?
Question 46
What happens in the long run when firms in a perfectly competitive industry initially earn a profit?
Question 47
In a competitive market with no externalities, what do the market demand and supply curves measure?
Question 48
When are trading profits maximized in a competitive market?
Question 49
What is the efficiency outcome in a competitive market where firms pollute the environment?
Question 50
What is the sum of consumer surplus and producer surplus equal to?
Question 51
Are there restrictions to entry in perfect competition?
Question 52
Are firms price takers or price makers under perfect competition?
Question 53
Is normal profit included in a firm’s total cost?
Question 54
What is the difference between a firm’s total revenue and total cost equal to?
Question 55
Can firms incur economic losses in the short run under perfect competition? What about in the long run?
Question 56
What does marginal revenue equal in perfect competition?
Question 57
When a competitive firm maximizes profit, what is the relationship between total revenue and total variable cost?
Question 58
What does the short-run supply curve of a competitive industry show?
Question 59
How do external economies and diseconomies affect average costs in a competitive industry?
Question 60
What does the short-run industry supply curve illustrate when firms have made all possible adjustments?
Efficiency and Welfare
Question 61
In a market graph, what do curves A and B typically represent if A is upward sloping and B is downward sloping?
Question 62
If the marginal benefit of a good is $1.50 at 2,000 units and $1.00 at 7,500 units, while the marginal cost is $1.00 at 2,000 units and $1.50 at 7,500 units, what can you conclude about the efficient quantity?
Question 63
If the marginal benefit of a loaf of bread exceeds its marginal cost, what does this imply about resource allocation?
Question 64
If 500 CDs are produced monthly, but the value people place on them exceeds the opportunity cost of production, is resource use efficient?
Question 65
According to the utilitarian viewpoint, if Adam earns $25,000 and Robert earns $45,000, and they have the same marginal benefit curve, what happens to total utility if a dollar is transferred from Robert to Adam?
Question 66
How do you calculate consumer surplus from a market graph?
Question 67
How does a change in demand affect consumer surplus, assuming the supply curve remains the same?
Question 68
How do you calculate producer surplus from a market graph?
Question 69
If the marginal cost of producing a service increases, what happens to the efficient quantity?
Question 70
If a competitive market for ballooning has a marginal cost equal to marginal benefit at 3,000 balloon rides per day and a price of $130 per ride, what can you conclude about the deadweight loss?
Question 71
If the marginal benefit of your last can of soda is $1.00, what is the value of that can to you?
Question 72
True or False: If the marginal benefit exceeds marginal cost, production is inefficient.
Question 73
What happens to consumer surplus if the market price of a chair decreases, but demand remains the same?
Question 74
What happens to producer surplus in the CD market if the supply of CDs decreases?
Question 75
True or False: In a competitive market, the marginal benefit is the same as the opportunity cost.
Question 76
What is maximized when resources are used efficiently?
Question 77
Which of the following is more likely to be a monopoly: a water provider or a restaurant?
Question 78
Provide an example of an external cost.
Question 79
What is the core moral principle of utilitarianism?
Question 80
Compare the deadweight loss from underproduction of a good to the deadweight loss from overproduction.
Introduction to Efficiency and the Gains from Trade
Question 81
When is resource use considered efficient in terms of production possibilities?
Question 82
Define marginal benefit.
Question 83
Define marginal cost.
Question 84
What is the value of a good equal to?
Question 85
Define consumer surplus.
Question 86
Define producer surplus.
Question 87
What is the goal of utilitarianism?
Question 88
Define external cost.
Question 89
Define external benefit.
Question 90
What occurs at inefficient levels of production?
Elasticity
Question 91
How do you calculate the price elasticity of demand?
Question 92
When is demand for a good considered elastic?
Question 93
True or False: When demand for a good is perfectly inelastic, the price elasticity of demand is greater than 1.
Question 94
What is the range of the price elasticity of demand when demand is inelastic?
Question 95
What is the price elasticity of demand and the shape of the demand curve when demand is perfectly elastic?
Question 96
What happens to price and total revenue when the supply of a good falls?
Question 97
What happens to total revenue when the price of an elastic good increases?
Question 98
What is the sign of the cross elasticity of demand for complementary goods?
Question 99
What is the sign of the income elasticity of demand for normal goods?
Question 100
What is the difference between a luxury and a necessity in terms of income elasticity of demand?
Question 101
If the price of a bus trip decreases, but the total revenue of the bus company remains unchanged, what is the elasticity of demand for bus travel?
Question 102
If Martin continues to buy the same quantity of chocolate truffles regardless of price increases, what is the elasticity of his demand?
Question 103
If a 10% increase in the price of a newspaper causes an 8% decrease in the quantity demanded, is the demand for newspapers elastic or inelastic?
Question 104
What happens to total revenue when the price of an elastic good decreases?
Question 105
If Webster and Oxford dictionaries are close substitutes, what can you say about the price elasticity of demand for Webster dictionaries?
Question 106
If blue feathers and black feathers are close substitutes, what is the sign of the cross elasticity of demand for black feathers with respect to the price of blue feathers?
Question 107
If the cross elasticity of demand for goods X and Y is positive, and the cross elasticity of demand for goods X and Z is negative, what is the relationship between these goods?
Question 108
Which type of good is likely to have the highest income elasticity of demand: necessities, luxuries, or inferior goods?
Question 109
If Mary’s income increases by 20%, and her demand for hockey tickets increases by 10%, are hockey tickets a normal good for Mary? Is her demand elastic or inelastic?
Question 110
Compare the elasticity of supply for lettuce in the short run versus the long run.
Question 111
How do you calculate the price elasticity of demand using percentage changes?
Question 112
When is demand for a good considered elastic in terms of percentage changes?
Question 113
True or False: When demand for a good is perfectly inelastic, the price elasticity of demand is greater than 1.
Question 114
What is the range of the price elasticity of demand when demand is inelastic?
Question 115
What is the price elasticity of demand and the shape of the demand curve when demand is perfectly elastic?
Question 116
What happens to price and total revenue when the supply of a good falls?
Question 117
What happens to total revenue when the price of an elastic good increases?
Question 118
Because toothpaste and toothbrushes are complements, what is the sign of their cross elasticity of demand?
Question 119
Taxi fares and haircuts are normal goods. What is the sign of their income elasticity of demand?
Question 120
What is the difference between a luxury and a necessity in terms of income elasticity of demand?