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【单选题】
某投资者有30万元，打算投资股市的三只具有相同期望收益率和标准差的股票A、B、C股票A和股票B的相关系数是-0.7，股票B和股票C的相关系数是0.8，股票A和股票C的相关系数是0.05。从充分降低风险的角度考虑，该投资者应该采取的投资策略是（ ）。A.
30万元全部买人股票A
B.
15万元投资股票A，15万元投资股票B
C.
15万元投资股票B，15万元投资股票C
D.
15万元投资股票A，15万元投资股票C
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【单选题】The figure given above shows the market for MP3 players in a small country. Dd and Sd are the domestic demand and domestic supply curves of the MP3 players before the imposition of the quota. (Sd + QQ...
A.
$35 million.
B.
less than $10 million.
C.
greater than $35 million.
D.
$25 million.
【单选题】Consider Figure 5.3. If the Swedish government auctions import licenses to the highest bidder in a competitive market, it could realize revenues of up to:
A.
$3.20
B.
$4.00
C.
$4.80
D.
$5.60
【简答题】地质年代分为()地质年代和()地质年代。
【判断题】Most or all of the mark-up revenue from a quota will be captured by the government if the government auctions off import licenses.
A.
正确
B.
错误
【单选题】In the case of a small country, the effects of a quota and a tariff are (almost) identical if: a. the government allocates licenses for free to importers using a rule or process that involves (almost)...
A.
B.
C.
D.
D
【单选题】Consider Figure 5.3. If thecompetitive market, it could realize revenues of up to:
A.
$3.20
B.
$4.00
C.
$4.80
D.
$5.60
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