Only _________% of SW's flights arrived at the gate within 15 minutes of scheduled time--the DOT's definition of on time.

If the quantity of money supplied does not respond to changes in the interest rate, then the money supply curve is

A) vertical. B) horizontal. C) relatively flat but upward sloping. D) relatively steep but upward sloping.

Market structures are defined by all of the following except the

a. number of firms b. level of prices c. ease with which new firms can enter d. presence of substitute goods e. existence of barriers to entry