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課程名稱︰經濟學原理與實習一
課程性質︰必修/A5通識
課程教師︰王道一
開課學院：社會科學院
開課系所︰經濟系
考試日期（年月日）︰97.11.03
考試時限（分鐘）：10:20-12:10 (110mins)
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
一.選擇題(30%)
1.If labor in Mexico is less productive than labor in the United States in
all areas of production
a.neither nation can benefit from trade.
b.Mexico can benefit from trade but United States cannot.
c.the United States will have a comparative advantage relative to Mexico in
the production of all goods.
d.both Mexico and the United States still can benifit from trade.
2.An increase in demend is represented by
a.a movement downward and to the right along a demend curve.
b.a movement upward and to the left along a demend curve.
c.a rightward shift of a demend curve.
d.a leftward shift of a demend curve.
3.When demend is unit elastic, price elasticity of demend
a.equals 1 and total revenue and price move in the same direction.
b.equals 1 and total revenue and price move in opposite directions.
c.equals 1 and total revenue does not change when price changes.
d.equals 0 and total revenue does not change when price changes.
4.If a binding price ceiling were imposed in the computer market,
a.the quantity of computers demended would increase.
b.the quantity of computers supplied would decrease.
c.a shortage of computers would develop.
d.All of the above are correct.
5.Producer surplus is
a.measures using the demend curve for a good.
b.always a negetive number for sellers in a competitive market.
c.the amount a seller is paid minus the cost of production.
d.the opportunity cost of production minus the cost of producing goods that
go unsold.
6.Suppose a tax is levied on the sellers of a good;
a.then the supply curve shifts upward by the amount of the tax.
b.then the quantity demended decreases for all conceivable prices of the
good.
c.this means that the sellers of the good will receive a lower price from
buyers, not that the sellers are actually responsible for paying the tax
to the government.
d.All of the above are correct.
7.Taxes cause deadweight losses because
a.taxes reduce the sum od producer and consumer surpluses by more than the
amount of tax revenue.
b.taxes prevent buyers and sellers from realizing some of the gains from
trade.
c.taxes cause marginal buyers and marginal sellers to leave the market,
causing the quantity sold to fall.
d.All of the above are correct.
8.When a country allows trade and becomes an export of a good,
a.domestic producers gain and domestic comsumers lose.
b.domestic producers lose and domestic comsumers gain.
c.domestic producers and domestic comsumers both gain.
d.domestic producers and domestic comsumers both lose.
9.If a tax is imposed on a market with elastic demend and inelastic supply,
a.buyers will bear most of the burden of the tax.
b.sellers will bear most of the burden of the tax.
c.the burden of the tax will be shared equally between buyers and sellers.
d.it is impossible to determine how the burden of the tax will be shared.
10.A movement along the supply curve might be caused by a change in
a.technology.
b.input prices.
c.expectations about future prices.
d.the price of the good or service that is being supplied.
二.計算與問答題(70%)
1.Using the graph shown, answer the following questions. (21%)
(圖: http://ppt.cc/I;1l )
a.What was the equilibrium price in this market before the tax?
b.What is the amount of the tax?
c.How much of the tax will the buyers pay?
d.How much of the tax will the sellers pay?
e.How much will the buyer pay for the product after the tax is imposed?
f.How much will the seller receive after the tax is imposed?
g.As a result of the tax, what has happened to the level of market activity?
2.Answer the following questions based on the graph that represents J.R.'s
demend for ribs per week of ribs at Judy's rib shack. (27%)
(圖: http://ppt.cc/_-t_ )
a.At the equilibrium price, how many ribs would J.R. be willing to purchase?
b.How much is J.R. willing to pay for 20 ribs?
c.What is the magnitude of J.R.'s consumer surplus be at the equilibrium
price?
d.At the equilibrium price, how many ribs would Judy be willing to sell?
e.How high must the price of ribs be for Judy to supply 20 ribs to the
market?
f.At the equilibrium price, what is the magnitude of total surplus in the
market?
g.If the price of ribs rose to $10, what would happen to J.R.'s consumer
surplus?
h.If the price of ribs fell to $5, what would happen to Judy's producer
surplus?
i.Explain why the graph that is shown verifies the fact that the market
equilibrium (quantity) maximizes the sum of producer and consumer surplus.
3.需求函數：Qd=300-P；供給函數：Qs=-30+0.5P。 (12%)
(1)求均衡價格及數量；
(2)若政府對廠商課徵每一單位15元之從量稅，求稅後均衡價格(廠商收到價格、消費者
支付價格)及數量；
(3)政府收到多少稅收？
(4)計算政府課稅之後之無謂損失(deadweight loss)。
Hint:稅後供給線Qs=-30+0.5(P-15)
4.These figures illustrate the production possibilities available to Barney
and Betty with 8 hours of labor in their bakery. (10%)
(圖: http://ppt.cc/7KF@ )
(1)Refer to Figure. The oppotunity cost of 1 pie for Betty is? (2%)
(2)Refer to Figure. Barney has an absolute advantage in? (2%)
(3)Refer to Figure. Barney has a comparative advantage in? (3%)
(4)Initially, Barney is spending one-half of his time making pies and other
one-half of his time making bread, and Betty is doing the same. Relative
to this initial situation, Barney and Betty could specialize according to
the principle of comparative advantage, and both could benefit from this
new arrangement, provided they agree that one pie will trade for somewhere
between? (3%)
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