Which of these factors does not cause a shift in the demand curve for a product?
Change in consumer tastes and preferences.
Change in the price of a substitute good.
Change in consumer income.
Change in the price of the product itself.
✓
Correct Answer
Change in the price of the product itself.
A change in consumer income, the price of a substitute good, or consumer tastes and preferences all cause the entire demand curve to shift. A change in the price of the product itself causes a movement along the existing demand curve, not a shift of the curve.
Question 2
Which of these factors does not typically make the demand for a good more price elastic?
Many close substitutes are available.
The good is a necessity.
✓
A long time horizon is considered.
A large proportion of the consumer's budget is spent on the good.
Correct Answer
The good is a necessity.
The availability of many close substitutes, a large proportion of the consumer's budget spent on the good, and a long time horizon all tend to make demand more price elastic. If a good is a necessity, demand tends to be more price inelastic.
Question 3
Which of these is not a direct measure of consumer satisfaction or preference in utility theory?
Budget constraint.
✓
Utility maximization.
Marginal utility.
Total utility.
Correct Answer
Budget constraint.
Total utility, marginal utility, and utility maximization are concepts directly related to measuring or achieving consumer satisfaction based on preferences. A budget constraint represents the limits on consumption imposed by income and prices, not a measure of satisfaction itself.
Question 4
Which of these is not a characteristic of a perfectly competitive market?
Many buyers and sellers.
Free entry and exit.
Firms are price takers.
Differentiated products.
✓
Correct Answer
Differentiated products.
Perfectly competitive markets are characterized by many buyers and sellers, free entry and exit, and firms being price takers. Products in a perfectly competitive market are homogeneous (identical), not differentiated.
Question 5
Which of these costs is not considered a variable cost in the short run for a typical firm?
Rent for the factory building.
✓
Wages for production workers.
Raw material costs.
Electricity used in production.
Correct Answer
Rent for the factory building.
Raw material costs, wages for production workers, and electricity used in production are all variable costs in the short run because they change with the level of output. Rent for a factory building is typically a fixed cost in the short run as it does not vary with the level of output.
Question 6
Which of these is not a recognized type of market failure?
Public goods.
Perfect information.
✓
Externalities.
Monopoly power.
Correct Answer
Perfect information.
Externalities, public goods, and monopoly power are all recognized sources of market failure, where the free market fails to allocate resources efficiently. Perfect information, on the other hand, is an assumption of perfect competition and its absence (asymmetric information) is a source of market failure.
Question 7
Which of these factors does not cause a shift in the supply curve for a product?
Change in the number of sellers.
Change in technology.
Change in consumer income.
✓
Change in input prices.
Correct Answer
Change in consumer income.
Changes in technology, input prices, and the number of sellers all cause the entire supply curve to shift. A change in consumer income affects the demand curve, not the supply curve.
Question 8
Three of these pairs are substitutes with a positive cross-price elasticity. Which one is not?
Laptops and desktop computers.
Butter and margarine.
Coffee and tea.
Cars and gasoline.
✓
Correct Answer
Cars and gasoline.
Coffee and tea, laptops and desktop computers, and butter and margarine are all substitutes; an increase in the price of one would increase demand for the other, resulting in a positive cross-price elasticity. Cars and gasoline are complements; an increase in the price of one would decrease demand for the other, resulting in a negative cross-price elasticity.
Question 9
Which of these properties is not typically attributed to standard indifference curves?
They can cross each other.
✓
They are convex to the origin.
Higher curves represent higher levels of utility.
They are downward sloping.
Correct Answer
They can cross each other.
Standard indifference curves are downward sloping, convex to the origin, and higher curves represent higher levels of utility. Indifference curves cannot cross each other, as this would imply a contradiction in consumer preferences.
Question 10
Which of these is not typically considered a significant barrier to entry in a market?
Economies of scale.
Government licenses and regulations.
Availability of many substitutes.
✓
Patents and copyrights.
Correct Answer
Availability of many substitutes.
Patents and copyrights, economies of scale (leading to natural monopolies), and government licenses are all significant barriers that make it difficult for new firms to enter a market. The availability of many substitutes indicates a competitive market, reducing the power of existing firms, but does not act as a barrier to entry for new firms.
Question 11
Which of these concepts does not relate to costs in the long run for a firm?
Minimum efficient scale.
Fixed costs.
✓
Diseconomies of scale.
Economies of scale.
Correct Answer
Fixed costs.
Economies of scale, diseconomies of scale, and minimum efficient scale are all concepts that describe cost behavior and firm size in the long run, where all inputs are variable. Fixed costs, by definition, exist only in the short run where at least one input is fixed. In the long run, all costs are variable.
Question 12
Which of these is not an example of a negative externality?
Pollution from a factory affecting nearby residents.
Noise from a construction site disturbing a neighborhood.
A homeowner's well-maintained garden increasing property values for neighbors.
✓
Traffic congestion caused by increased car usage.
Correct Answer
A homeowner's well-maintained garden increasing property values for neighbors.
Pollution, noise from construction, and traffic congestion are all examples of negative externalities, where an economic activity imposes a cost on a third party not directly involved in the activity. A well-maintained garden increasing neighbor's property values is an example of a positive externality.
Question 13
Which of these terms describes a situation where the quantity demanded does not equal the quantity supplied at the prevailing market price?
Equilibrium.
✓
Excess supply.
Shortage.
Surplus.
Correct Answer
Equilibrium.
A surplus (excess supply) and a shortage (excess demand) both describe situations where the quantity demanded does not equal the quantity supplied. Equilibrium is the specific point where quantity demanded exactly equals quantity supplied.
Question 14
Which of these factors would not cause a shift or rotation of a consumer's budget constraint?
Change in the prices of both goods proportionally.
Change in the price of one of the goods.
Change in consumer preferences.
✓
Change in consumer income.
Correct Answer
Change in consumer preferences.
A change in consumer income, a change in the price of one of the goods, or a proportional change in the prices of both goods will all cause the budget constraint to shift or rotate. A change in consumer preferences affects the shape or position of indifference curves, but not the budget constraint itself.
Question 15
Which of these market structures is characterized by firms having some degree of pricing power, but not being pure price makers?
Monopoly.
Perfect competition.
✓
Monopolistic competition.
Oligopoly.
Correct Answer
Perfect competition.
Monopolistic competition and oligopoly are market structures where firms have some degree of pricing power due to product differentiation or interdependence, but face competition. A monopoly has significant pricing power, being a pure price maker. Perfect competition is characterized by firms being price takers, with no individual pricing power.