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總分 85

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序號 上傳時間 檔名 檔案⼤⼩

作業內容
配分：[5.00] 1.
得分：
5.00 F u n d a m e n t a l l y, e c o n o m i c s d e a l s w i t h
詳
a. scarcity. 解：
b. money.
A
c. poverty.
d. banking.

配分：[5.00] 2.
得分：
5.00 The overriding reason why households and societies face many decisions is that
詳
a. resources are scarce. 解：
b. goods and services are not scarce.
A
c. incomes fluctuate with business cycles.
d. people, by nature, tend to disagree.

配分：[5.00] 3.
得分：
5.00 Economics is the study of how society manages its
詳
a. limited wants and unlimited resources. 解：
b. unlimited wants and unlimited resources.
D
c. limited wants and limited resources.
d. unlimited wants and limited resources.

配分：[5.00] 4.
得分：
5.00 The adage, "There ain't no such thing as a free lunch," means
詳
a. even people on welfare have to pay for food. 解：
b. the cost of living is always increasing.
C
c. people face tradeoffs.
d. all costs are included in the price of a product.

配分：[5.00] 5.
得分：
5.00 E ff i c i e n c y m e a n s t h a t
a. society is conserving resources in order to save them for the future. 詳
解：
b. society's goods and services are distributed equally among society's members.
c. society's goods and services are distributed fairly, though not necessarily equally, among D
society's members.
d. society is getting the most it can from its scarce resources.

配分：[5.00] 6.
得分：
5.00 The opportunity cost of an item is
詳
a. the number of hours needed to earn money to buy the item. 解：
b. what you give up to get that item.
B
c. usually less than the dollar value of the item.
d. the dollar value of the item.

配分：[5.00] 7.
得分：
5.00 Sabrina decides to spend 2 hours working overtime rather than going to the movies
with her friends. She earns $15 per hour for overtime work. Her opportunity cost of
working is
詳
a. the $30 she earns working. 解：

b. the $30 minus the enjoyment she would have received from going to the movies. C
c. the enjoyment she would have received had she gone to the movies.
d. nothing, since she would have received less than $30 worth of enjoyment from going to the
movies.
:
配分：[5.00] 8.

得分： Consider Joseph's decision to go to college. If he goes to college, he will spend

0.00 $24,000 on tuition, $12,000 on room and board, and $1,200 on books. If he does not
go to college, he will earn $14,000 working in a store and spend $7,000 on room and 詳
board. Joseph's cost of going to college is 解：
a. $37,200. B
b. $44,200.
c. $51,200.
d. $58,200.

配分：[5.00] 9.
得分：
0.00 Yo u h a v e d r i v e n 7 5 0 m i l e s o n a v a c a t i o n a n d t h e n y o u n o t i c e t h a t y o u a r e o n l y 9 0
miles from an attraction you hadn't known about, but would really like to see. In
computing the opportunity cost of visiting this attraction you had not planned to
詳
visit, you should include
解：
a. both the cost of driving the first 750 miles and the next 90 miles.
C
b. the cost of driving the first 750 miles, but not the cost of driving the next 90 miles.
c. the cost of driving the next 90 miles, but not the cost of driving the first 750 miles.
d. neither the cost of driving the first 750 miles nor the cost of driving the next 90 miles.

配分：[5.00] 10.
得分：
5.00 A rational decision maker
a. ignores marginal changes and focuses instead on "the big picture." 詳
b. ignores the likely effects of government policies when he or she makes choices. 解：

c. takes an action only if the marginal benefit of that action exceeds the marginal cost of that C
action.
d. takes an action only if the combined benefits of that action and previous actions exceed the
combined costs of that action and previous actions.

配分：[5.00] 11.
得分：
5.00 T h e m a rg i n a l b e n e f i t D a n u t a g e t s f r o m p u r c h a s i n g a f o u r t h p a i r o f g l o v e s i s
a. the same as the total benefit she gets from purchasing four pairs of gloves. 詳
b. more than the marginal cost of purchasing the fourth pair of gloves. 解：

c. the total benefit she gets from purchasing four pairs of gloves minus the total benefit she C
gets from purchasing three pairs of gloves.
d. the total benefit she gets from purchasing five pairs of gloves minus the total benefit she
gets from purchasing four pairs of gloves.

配分：[5.00] 12.
得分：
5.00 A hair stylist currently cuts and colors hair for 50 clients per week and earns a
profit. He is considering expanding his operation in order to serve more clients.
Should he expand?
詳
a. Yes, because cutting hair is profitable. 解：
b. No, because he may not be able to sell more services.
C
c. It depends on the marginal cost of serving more clients and the marginal revenue he will earn
from serving more clients.
d. It depends on the average cost of serving more clients and the average revenue he will earn
from serving more clients.

配分：[5.00] 13.
得分：
5.00 Savion is restoring a car and has already spent $4,000 on the restoration. He expects
to be able to sell the car for $5800. Savion discovers that he needs to do an
additional $2,400 of work to make the car worth $5,800 to potential buyers. He
c o u l d a l s o s e l l t h e c a r n o w, w i t h o u t c o m p l e t i n g t h e a d d i t i o n a l w o r k , f o r $ 3 , 8 0 0 .
詳
What should he do?
解：
a. He should sell the car now for $3,800.
A
b. He should keep the car since it wouldn’t be rational to spend $6,400 restoring a car and then
sell it for only $5,800.
c. He should complete the additional work and sell the car for $5,800.
d. It does not matter which action he takes since the outcome will be the same either way.

配分：[5.00] 14.
得分：
5.00 Suppose the cost of operating a 75-room hotel for a night is $6,000 and there are
f i v e e m p t y r o o m s f o r t o n i g h t . I f t h e m a rg i n a l c o s t o f o p e r a t i n g o n e r o o m f o r o n e
night is $40, the hotel manager should rent one of the empty rooms only if a 詳
customer is willing to pay 解：
:
 a. more than $40; because the average benefit will exceed the marginal cost. B

b. more than $40; because the marginal benefit will exceed the marginal cost.
c. more than $80; because the average benefit will exceed the marginal cost.
d. more than $80; because the marginal benefit will exceed the marginal cost.

配分：[5.00] 15.
得分：
5.00 Nevaeh decides to spend four hours watching movies rather than attending her
classes. Her opportunity cost of watching movies is
詳
a. the value of the knowledge she would have received had she attended her classes. 解：

b. the $75 she could have earned if she had worked at her job for those four hours. A
c. the value of her time watching movies minus the value of attending classes.
d. nothing, since she valued watching movies more than attending classes.

配分：[5.00] 16.
得分：
5.00 If Japan decides to trade with Indonesia, we know that
詳
a. Indonesia will benefit, but trade with a less developed country could not benefit Japan. 解：
b. it will not benefit Indonesia because workers in Japan are more productive.
C
c. Indonesia and Japan can both benefit.
d. it will not benefit either country because their cultural differences are too vast.

配分：[5.00] 17.
得分：
5.00 The "invisible hand" refers to
詳
a. how central planners made economic decisions. 解：
b. how the decisions of households and firms lead to desirable market outcomes.
B
c. the control that large firms have over the economy.
d. government regulations without which the economy would be less efficient.

配分：[5.00] 18.
得分：
0.00 I n a m a r k e t e c o n o m y, w h o m a k e s t h e d e c i s i o n s t h a t g u i d e m o s t e c o n o m i c a c t i v i t y ?
詳
a. Firms only 解：
b. Households only
C
c. Firms and households
d. Government

配分：[5.00] 19.
得分：
5.00 The term used to describe a situation in which markets do not allocate resources
e ff i c i e n t l y i s
詳
a. economic meltdown. 解：

b. market failure. B
c. equilibrium.
d. the effect of the invisible hand.

配分：[5.00] 20.
得分：
5.00 Market power refers to the
詳
a. power of a single person or small group to influence market prices. 解：
b. ability of a person or small group to successfully market new products.
A
c. power of the government to regulate a market.
d. importance of a certain market in relation to the overall economy.

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