In the U.S., the percentage of total population living in poverty fell significantly during which of the following periods?

Elimination of minimum brokerage commission rates occurred because of

A) competition from banks. B) demands of institution investors. C) competition from foreign brokerage firms. D) an action of the Securities and Exchange Commission.

Which of the following statements is true

a. A firm should increase quantity as long as average cost is greater than price b. A firm should increase quantity as long as price is greater than marginal cost c. A firm should increase quantity as long as price is higher than average cost, regardless of the marginal cost d. A firm should increase quantity as long as marginal cost is greater than price