Which diagram in Figure 15.1 best represents a situation in which lower interest rates do not stimulate additional investment?

International influences have become relatively ________ important for the U.S. economy in recent decades, as we become a more ________ economy

A) less, "open" B) less, "closed" C) more, "open" D) more, "closed"

If the price of a candy bar increases from $1 to $1.50, the ____ will increase

a. producer surplus b. consumer surplus c. opportunity cost of producing a candy bar d. social marginal cost of producing a candy bar