課程名稱÷個體經濟學 Microeconomics
課程性質︰經濟學
課程教師︰林明仁 Professor Ming-Jen Lin
開課系所︰經濟系
考試時間︰Nov.22,2005
試題 :
Multiple Choice(3 points each)
1.Surveys show that a small increase in the price of fresh tomatoes will cause
people to switch to other alternatives such as canned tomatoes. This finding
suggests that the demand curve for fresh tomatoes is
a.relatively steep
b.relatively flat
c.upward sloping
d.vertical
2.If the demand curve for cigarettes is relatively steep, then
a.higher cigarette prices would cause a large number of people to quit
smoking.
b.the law of demand does not hold for cigarettes.
c.shifts in the supply curve for cigarettes will have relatively little
effect on the price of cigarettes.
d.the price of cigarettes has relatively little effect on smokers' decision
to buy cigarettes.
3.Consider a demand curve for reckless driving, for which the "price of
reckless driving" is interpreted as the probability of having a fatal
accident. When could safer cars lead to an increase in total number of
driver fatalities?
a.Always.
b.Never.
c.When the demand curve is relatively flat.
d.When the demand curve is relatively steep.
4.Consider the market for resuaurant meals. Statistics show the wealthier
families spend a greater propotion of their income on restaurant meals
than do poorer families. If households' income rise substantially during
an economic recovery, then we can expect
a.an increased demand for restaurant meals.
b.an increased supplu of restaurant meals
c.a lower price for restaurant meals.
d.the demand curve for restaurant meals shifts to the left.
5.Suppose that the due to technological innovations, the absolute price of
recordable CD declines by 25% while the absolute price of a recordable
cassette tape declinees by 10%. In this situation, the price of the CD
relative to the price of a tape
a.falls.
b.rises.
c.remains the same.
d.changes unpredictably.
6.Suppose there are only two goods:lettuce and grapes. In California, a
head of lettuce sells for 50 cents and a bunch of grapes sells for $1. In
Nebraska, 25cents must be added to these absolute prices to cover transpor-
tation costs. How do these transportation costs affect the relative prices
of lettuce and grapes?
a.The transportation costs do not affect the relative price of lettuce and
grapes.
b.The relative prices of lettuce and grapes are bother higher when transpor-
tation costs are added.
c.The addition of transportatin costs makes the relative price of grapes
higher and the relative price of lettuce lower.
d.The transportation costs raises the relative price of lettuce but lower the
relative price of grapes.
7.Suppose that in Paraguay, one of the poorest countries in the Americas, only
two goods that are produced can compete in world markets, tea and DVD players.
Given this success in exporting, Paraguay
a.should specialize only in DVD players since tea is an old industry.
b.should specialize in production of tea, since its people are probably too
poor to buy DVD players.
c.should stop exporting both goods and produce more food products for its
people.
d.is better off producing both goods in which it has a comparative advantage,
relative to all other goods.
8.Maki is potter who makes 2 decorative bowls per day. She can sell as many
bowls as she can produce, earning a net income of $24 per bowl. Every
Wednesday, instead of making bowls, she spends $12 on gasoline delivering
bowls to the stores that carry her work. When would Maki and her customers
benefits from hiring of a middleman to do the deliveries?
a. Never-the middleman would only increase Maki's costs and her customers'
prices.
b. When the middleman uses less than $12 of gasoline to deliver the bowls.
c. When the middleman's cost of delivery is less than $48.
d. When the middleman's cost of delivery is less than $60.
9.Refer to Goods X and Y. Which of the following would cause the vertical
intercept to mve upwards?
a.A decrease in the price of good X.
b.An increase in the price of good X.
c.An increase in the price of good Y.
d. A decrease in the price of good Y.
10.In order to identify differences in preferences among various countries,
one would look for evidence that
a.indifference curves from different countries cross.
b.prices for goods differ among countries.
c.different markets baskets are chosen among different nationalities.
d.higher income countries choose baskets with more of all goods.
11.Suppose leisure is on horizontal axis and dollars are on the vertical axis
in the consumer-choice diagram. Whar happens to the budget line when a
head tax is imposed?
a.The budget lines shifts unward, but it may become steeper or flatter
depending on the size of the head tax.
b.The budget line pivots about the horizontal intercept, becoming steeper.
c.The budget line become flatter, with the vertical intercept falling and
the horizontal intercept remaining fixed.
d.There is an inward, parallel shift in the budget line.
12.Which of thw following is not hold constant when we use indifference-curve
analysis to derive the Engel curve or good X?
a. The price of good X.
b. The price of Y.
c. The consumer's income.
d. The consumer's tastes.
13.To construct an ordinary demand curve for good X,
a.change the price of good X in the consumer choice diagram and observe the
change in the quantity of good X among the optimum market baskets.
b.change the prices of both goods in the consumer choice diagram and
observe the change in the quantity of good X among the optimum market
baskets.
c.change the price of good Y in the consumer choice diagrasm and observe the
change in the quantity of good X among the optimum market baskets.
d.change the consumer's income in the consumer choice diagram and observe
the change in the quantity of good X.
14.If a rise in the price of good X causes the quantity demand of good X to
fall, then,
a.the Engel curve for good X is downward sloping.
b.the(ordnary) demand curve for good Xis downward sloping.
c.the demand for good X is elastic.
d.good X must be a Giffen good.
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