The three most widely followed stock indexes in the United States include all of the following except

Because a monopolist must lower its price in order to sell another unit of output,

a. marginal revenue is less than price. b. long-term economic profits will be zero. c. total revenue increases as price increases. d. average revenue is less than price.

If two goods have a ________ cross-price elasticity of demand, then the antitrust agencies can conclude that the products ________ compete in the same market as strong substitutes.

A) large; do not B) small; do C) zero; do D) large; do