A perfectly competitive firm is a "price maker."

When the interest rate decreases, the amount of loanable funds demanded in the market:

a) decreases; this causes a movement up and to the left along the demand curve. b) increases; this causes a movement down and to the right along the demand curve. c) decreases; the entire demand curve shifts left. d) increases; the entire demand curve shifts right.

If a firm faces a flat demand curve,

A) it cannot engage in price discrimination. B) it can only engage in two-part tariffs. C) it can only engage in perfect price discrimination. D) None of the above.