Micro last

When the price of a good or service changes, a. the demand curve shifts in the opposite direction. b. the supply curve shifts in the opposite direction. c. the supply curve shifts in the same direction. d. there is a movement along a given supply curve.

D

If the cross-price elasticity of two goods is positive, then the two goods are a. substitutes. b. complements. c. normal goods. d. inferior goods.

A

Suppose the government has imposed a price floor on the market for soybeans. Which of the following events could transform the price floor from one that is not binding into one that is binding? a. Farmers use improved, draught-resistant seeds, which lowers the cost of growing soybeans. b. The number of farmers selling soybeans decreases. c. Consumers' income increases, and soybeans are a normal good. d. The number of consumers buying soybeans increases.

A

Suppose the income elasticity of demand is -0.5 for good X. This implies that a 5% decrease in income will cause the quantity demanded of good X to a. increase by 2.5%, and X is an inferior good. b. decrease by 2.5% and X is a normal good. c. increase by 10% and X is an inferior good. d. decrease by 10% and X is a normal good.

A

Which of the following statements best expresses a firm's profit-maximizing decision rule? a. If marginal revenue is greater than marginal cost, the firm should increase its output. b. If marginal revenue is less than marginal cost, the firm should shut down in the short run. c. If marginal revenue equals marginal cost, the firm should produce exactly one more unit of output. d. All of the above are correct.

A

For a typical natural monopoly, average total cost is a. falling, and marginal cost is above average total cost. b. falling, and marginal cost is below average total cost. c. rising, and marginal cost is below average total cost. d. rising, and marginal cost is above average total cost.

B

If a good is inferior, then an increase in income will result in a(n) a. increase in the demand for the good. b. decrease in the demand for the good. c. movement down and to the right along the demand curve for the good. d. movement up and to the left along the demand curve for the good.

B

One way in which monopolistic competition differs from oligopoly is that a. there are no barriers to entry in oligopolies. b. in oligopoly markets there are only a few sellers. c. all firms in an oligopoly eventually earn zero economic profits. d. strategic interactions between firms are rare in oligopolies.

B

The practice of selling a product to retailers and requiring the retailers to charge a specific price for the product is called a. fixed retail pricing. b. resale price maintenance. c. cost plus pricing. d. unfair trade.

B

The primary purpose of antitrust legislation is to a. protect small businesses. b. protect the competitiveness of U.S. markets. c. protect the prices of American-made products. d. ensure firms earn only a fair profit.

B

Which of the following is a characteristic of monopolistic competition? a. ownership of a key resource by a single firm b. free entry c. identical product d. patents

B

You are offered a free ticket to see the Chicago Cubs play the Chicago White Sox at Wrigley Field. Assume the ticket has no resale value. Willie Nelson is performing on the same night, and his concert is your next-best alternative activity. Tickets to see Willie Nelson cost $40. On any given day, you would be willing to pay up to $50 to see and hear Willie Nelson perform. Assume there are no other costs of seeing either event. Based on this information, at a minimum, how much would you have to value seeing the Cubs play the White Sox to accept the ticket and go to the game? a. $0 b. $10 c. $40 d. $50

B

Susan quit her job as a teacher, which paid her $36,000 per year, in order to start her own catering business. She spent $12,000 of her savings, which had been earning 10 percent interest per year, on equipment for her business. She also borrowed $12,000 from her bank at 10 percent interest, which she also spent on equipment. For the past several months she has spent $1,000 per month on ingredients and other variable costs. Also for the past several months she has earned $4,500 in monthly revenue. In the short run, Susan should a. shut down her business, and in the long run she should exit the industry. b. continue to operate her business, but in the long run she should exit the industry. c. continue to operate her business, but in the long run she will probably face competition from newly entering firms. d. continue to operate her business, and she is also in long-run equilibrium.

C

What will happen to the equilibrium price of new textbooks if more students attend college, paper becomes cheaper, textbook authors accept lower royalties, and fewer used textbooks are sold? a. Price will rise. b. Price will fall. c. Price will stay exactly the same. d. The price change will be ambiguous.

D