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6) Which of the following shifts the demand curve for movies rightward? A) an increase in the price of HDTV sets B) an increase in the price of NetFlix, a substitute for movies C) a decrease in the price of move tickets D) an increase in movie star salaries E) an increase in the price of movie tickets

7) Which of the following is true? A) An increase in population shifts the demand curve leftward. B) An increase in the cost of producing a good shifts the demand curve leftward. C) If the price of a substitute rises, the demand curve shifts leftward. D) For an inferior good, when income increases, the demand curve shifts leftward. E) If people expect the price of a good will rise in the future, the demand curve shifts leftward.

8) The price of cotton clothing falls. As a result, A) the demand for cotton clothing decreases. B) the quantity demanded of cotton clothing decreases. C) the quantity demanded of cotton clothing increases. D) the demand for cotton clothing increases. E) both the demand for cotton clothing increases and the quantity demanded of cotton clothing increases.

9) An increase in the quantity demanded is shown as A) a leftward shift of the demand curve. B) a movement along the demand curve. C) a movement toward the demand curve. D) a rightward shift of the demand curve. E) both a movement along the demand curve and a shift of the demand curve.

12) People come to expect that the price of a gallon of gasoline will rise next week. As a result, A) next week's supply of gasoline decreases. B) today's demand for gasoline increases. C) the price of a gallon of gasoline falls today. D) today's demand for gasoline and today's supply of gasoline do not change. E) today's supply of gasoline increases.

13) If the price of a DVD falls, i. the demand curve for DVDs will shift rightward. ii. the demand curve for DVDs will not shift. iii. there will be a movement along the demand curve for DVDs. A) ii and iii B) iii only C) i and iii D) i only E) ii only

14) When the price of oranges increases, A) the quantity of oranges demanded increases. B) the quantity of oranges supplied increases. C) the supply of oranges increases. D) the supply of oranges decreases. E) none of the above

17) The market supply curve is the ________ of the ________. A) vertical average; of the individual supply curves B) horizontal sum; individual supply curves minus the market demand C) vertical sum; individual supply curves minus the market demand D) horizontal sum; individual supply curves E) vertical sum; individual supply curves

18) If both supply and demand decrease by the same amount, the equilibrium price A) does not change. B) cannot be predicted. C) rises. D) falls. E) None of the answers is correct because the price depends on what happens to the equilibrium quantity.

19) The law of supply states that other things remaining the same, a decrease in the price of a kayak leads to A) an increase in the quantity of kayaks supplied. B) a decrease in the quantity of kayaks supplied. C) an increase in the supply of kayaks. D) a decrease in the supply of kayaks. E) an increase in the supply of kayaks and a decrease in the quantity of kayaks supplied.

20) A student at New York University used to take the Redhound bus when she visited her grandmother in Boston. After graduating, although the bus fare and the plane fare were the same as they were when she was a student, with a well-paid job on Wall Street she now takes the plane to Boston to visit her grandmother. For this student, travel by Redhound bus is A) an inferior good. B) a good with negative preferences. C) a complement good. D) a normal good. E) a substitute good