All Free Economics MCQs with Answers

Every Economics question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.

4,037 questions · page 135 of 202

  • A. There is an increase in the quantity demanded of apples and in the supply for apples
  • B. There is an increase in the demand and supply of apples.
  • C. There is an increase in the demand for apples and a decrease in the supply of apples
  • D. There is a decrease in the quantity demanded of apples and an increase in the supply for apples
  • E. There is an increase in the demand for apples and an increase in the quantity supplied of apples.

Explanation: A shift in tastes toward apples shifts the demand curve rightward. The resulting higher equilibrium price causes an increase in quantity…

Correct answer: There is an increase in the demand for apples and an increase in the quantity supplied of apples.
  • A. Both the demand for lettuce will decrease and the equilibrium price and quantity of salad dressing will fall
  • B. The supply of lettuce will decrease
  • C. The demand for lettuce will decrease
  • D. The equilibrium price and quantity of salad dressing will fall
  • E. The equilibrium price and quantity of salad dressing will rise

Explanation: Lettuce and salad dressing are complementary goods, so a higher lettuce price reduces demand for salad dressing.

Correct answer: The equilibrium price and quantity of salad dressing will fall
  • A. the equilibrium quantity to rise and the equilibrium price to rise
  • B. the equilibrium quantity to rise and the equilibrium price to fall
  • C. the equilibrium quantity to rise and the equilibrium price to remain constant
  • D. the change in the equilibrium quantity to be ambiguous and the equilibrium price to rise
  • E. the equilibrium quantity to rise and the change in the equilibrium price to be ambiguous.

Explanation: An increase in both demand and supply raises the equilibrium quantity because both shifts push quantity upward.

Correct answer: the equilibrium quantity to rise and the change in the equilibrium price to be ambiguous.
  • A. there is a shortage and the price will rise
  • B. the quantity demanded is equal to the quantity supplied and the price remains unchanged
  • C. there is a shortage and the price will fall
  • D. there is a surplus and the price will rise

Explanation: A price below equilibrium creates excess demand, or a shortage, because quantity demanded exceeds quantity supplied.

Correct answer: there is a shortage and the price will rise
  • A. an advance in the technology used to manufacture watches
  • B. an increase in the price of watches
  • C. All of these answers cause an increase in the supply of watches
  • D. a decrease in the wage of workers employed to manufacture watches

Explanation: An increase in the price of watches changes quantity supplied through movement along the existing supply curve; it does not shift supply.

Correct answer: an increase in the price of watches
  • A. many buyers and sellers
  • B. none of these answers
  • C. firms that are price takers
  • D. only one seller

Explanation: A monopoly is defined by a single seller serving the market, usually protected by barriers to entry.

Correct answer: only one seller
  • A. none of these answers
  • B. increases the quantity supplied of that good
  • C. increase the supply of that good
  • D. decrease the demand for the good
  • E. decrease the quantity demanded for that good

Explanation: The law of supply describes movement along the supply curve: when price rises, producers generally offer a greater quantity for sale, all…

Correct answer: increases the quantity supplied of that good
  • A. Complements
  • B. inferior goods
  • C. normal goods
  • D. none of these answers
  • E. Substitutes

Explanation: A higher price for blue jeans increases demand for tennis shoes because consumers can switch between the two goods.

Correct answer: Substitutes
  • A. increasing average cost curve, marginal cost lies above average cost
  • B. increasing average cost curve, marginal cost lies below average cost
  • C. decreasing average cost curve marginal cost lies above average cost
  • D. decreasing average cost curve, marginal cost lies below average cost

Explanation: A natural monopoly has economies of scale over the relevant range, so its average cost falls as output increases.

Correct answer: decreasing average cost curve, marginal cost lies below average cost
  • A. vertical merger
  • B. horizontal merger
  • C. conglomerate merger
  • D. hostile takeover

Explanation: A horizontal merger combines firms operating at the same stage of production in the same industry, such as two competing manufacturers.

Correct answer: horizontal merger
  • A. marginal cost is set equal to marginal revenue
  • B. price is less than marginal cost
  • C. marginal consumer benefit is less than marginal revenue
  • D. there is too little output at too high a cost

Explanation: A monopolist restricts output and charges a price above marginal cost, so some mutually beneficial units are not produced.

Correct answer: there is too little output at too high a cost
  • A. the marginal cost of production does not equal society's marginal benefit
  • B. the distribution is inequitable
  • C. economic growth is low
  • D. unemployment is high

Explanation: Allocative efficiency requires society's marginal benefit from the last unit to equal its marginal cost, so resources cannot be shifted to…

Correct answer: the marginal cost of production does not equal society's marginal benefit
  • A. some people can't count
  • B. some people may not be permanent resident
  • C. not all economic activity is legal
  • D. We can't make value judgments to compare different people's welfare

Explanation: Comparing allocations requires judging how changes in one person's welfare should be weighed against changes in another's, which is a…

Correct answer: We can't make value judgments to compare different people's welfare
  • A. worse off; worse off
  • B. better off; better off
  • C. better off; worse off
  • D. equal, unequal

Explanation: Pareto efficiency means no feasible reallocation can make at least one person better off without making someone else worse off.

Correct answer: better off; worse off
  • A. a wining strategy
  • B. a losing strategy
  • C. a players best strategy when moving first
  • D. a player's best strategy whatever the strategies adopted by rivals

Explanation: A dominant strategy gives a player the best payoff regardless of which strategy the rival chooses.

Correct answer: a player's best strategy whatever the strategies adopted by rivals
  • A. players are better of to act independently
  • B. monopoly is better than competition
  • C. people will always cheat
  • D. players are better off if they co-operate

Explanation: The Prisoner's Dilemma shows that individually rational choices can leave both players worse off than mutual cooperation would.

Correct answer: players are better off if they co-operate
  • A. The oligopolist believes that competitors will match output increase but not output reduction
  • B. The oligopolist believes that competitors will match price increase but not output reduction
  • C. The oligopolist believers that competitors will match price cuts but not price rises
  • D. The oligopolist believes that competitors will match price increase but not output increase

Explanation: In the kinked-demand model, rivals are expected to match a price cut but not a price rise.

Correct answer: The oligopolist believers that competitors will match price cuts but not price rises
  • A. long run marginal cost
  • B. short run marginal cost
  • C. long run average cost
  • D. long run marginal cost

Explanation: A natural monopoly has economies of scale over a large output range, so its long-run average cost keeps declining as output expands.

Correct answer: long run average cost
  • A. research
  • B. cost-saving
  • C. technical advance
  • D. all of the above

Explanation: Monopoly profits can finance research, cost-saving measures, and technological improvements, which may strengthen the firm's cost or…

Correct answer: all of the above
  • A. goods are sold at prices above legal or official price.
  • B. buyers and/or sellers are not paying taxes as they should
  • C. illegal substances are sold
  • D. transactions are not recorded in the GDP figures.

Explanation: A black market operates outside official price and legal controls, commonly selling goods above the legally permitted price.

Correct answer: goods are sold at prices above legal or official price.