A decrease in the price of pizza will cause a(n): A.increase in demand. B.increase in quantity demanded. C.decrease in the number of consumers. D.decrease in quantity demanded. 正确答案：increase in quantity demanded.

If the demand for computers shifts to the right as consumers’ incomes rise, computers are A.inferior goods. B.normal goods. C.complement goods. D.substitute goods. 正确答案：normal goods.

As consumers’ incomes increase, the demand for ground beef decreases. Ground beef is called a(n): A.substitute good. B.complement good. C.normal good. D.inferior good. 正确答案：inferior good.

As consumers’ incomes decrease, the demand curve for bologna sandwiches shifts to the right. Therefore bologna sandwiches are: A.inferior goods. B.normal goods. C.substitute goods. D.complement goods. 正确答案：inferior goods.

Suppose the price of gasoline increases and that sport utility vehicles get poor gas mileage compared to other available cars. One would expect: A.the demand for gasoline to decrease. B.the demand for sport utility vehicles to decrease. C.the quantity of sport utility vehicles de … 阅读详情>> "Suppose the price of gasoline increases and that sport utility vehicles get poor gas mileage compared to other available cars. One would expect:"

Suppose one could either rent a car or take a train to travel to Chicago from Washington, D.C. If the price of train tickets increases: A.the demand for rental cars will decrease. B.the demand for train tickets will decrease. C.the demand for rental cars will increase. D.the dema … 阅读详情>> "Suppose one could either rent a car or take a train to travel to Chicago from Washington, D.C. If the price of train tickets increases:"

Suppose that the price of doughnuts decreases and that doughnut-holes are a by-product of producing doughnuts. One would expect: A.the supply of doughnut-holes to increase. B.the supply of doughnuts to decrease. C.the quantity supplied of doughnuts to decrease. D.the quantity sup … 阅读详情>> "Suppose that the price of doughnuts decreases and that doughnut-holes are a by-product of producing doughnuts. One would expect:"

For two goods X and Y to be classified as substitutes, it must be the case that: A.when the price of X rises, the demand for Y decreases. B.X and Y are identical. C.consumers tend to purchase both items. D.when the price of X rises, the demand for Y increases. 正确答案：when the price … 阅读详情>> "For two goods X and Y to be classified as substitutes, it must be the case that:"

At the beginning of the fall semester, college towns experience large increases in their populations, causing a(n): A.increase in the demand for apartments. B.decrease in the quantity of apartments demanded. C.increase in the supply of apartments. D.decrease in the quantity of ap … 阅读详情>> "At the beginning of the fall semester, college towns experience large increases in their populations, causing a(n):"

Suppose one observes that when the price of peanut butter increases, the demand for jelly increases. One must conclude that: A.peanut butter and jelly are complements. B.peanut butter and jelly are inferior goods. C.peanut butter and jelly are normal goods. D.peanut butter and je … 阅读详情>> "Suppose one observes that when the price of peanut butter increases, the demand for jelly increases. One must conclude that:"

Refer to the figure above. Demand for coffee last Monday is shown in bold and labeled D(Monday). On Tuesday, the news featured a story about a storm that wiped out the entire coffee crop in Brazil. On Wednesday: A.demand shifted to D(A) in anticipation of future price increases. … 阅读详情>> "Refer to the figure above. Demand for coffee last Monday is shown in bold and labeled D(Monday). On Tuesday, the news featured a story about a storm that wiped out the entire coffee crop in Brazil. On Wednesday:"

Refer to the figure above. Demand for coffee last Monday is shown in bold and labeled D(Monday). On Tuesday, the news featured a story explaining that the coffee crop has been contaminated with disease-causing bacteria. The following week: A.the demand function remained at D(Mond … 阅读详情>> "Refer to the figure above. Demand for coffee last Monday is shown in bold and labeled D(Monday). On Tuesday, the news featured a story explaining that the coffee crop has been contaminated with disease-causing bacteria. The following week:"