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CFA Level I:Economics - The Firm and Market Structures 精选题和学习要点
6 A: [) J u" C6 t2 l& Z/ xLearning Outcome Statements (LOS)
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6. The following equations have been developed for a company:
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The profit maximizing output for this firm (in units) is closest to:
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3 h) B3 R$ g( G% M, p& R9 M: w登录回复后可见:答案和详解
" _6 Z# F3 _+ ]# @Answer:A
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) L4 p9 |5 D( D, m; N+ f7. Consider the following data for a firm operating in perfect competition.
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The firm’s profit-maximizing output ( in units) is most likely: 6 }# ?% x$ F8 K! a6 W/ @
A. 21 5 m" Z3 V6 N( v- d5 x
B. 23 7 F/ ?$ T( f9 n
C. in excess of 24
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8. Which of the following statements concerning market structure and Herfindahl-Hirschman Index (HHI) is most accurate?
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B. Low control over prices is characteristic of oligopolies - `! U, x1 {( E/ x9 S! j
C. An HHI value of 0.006 indicates that a market is highly competitive1 M8 X; K5 F% }/ g; P6 C1 t+ B9 {
Answer:C; the HHI value of 0.006, which is very smaller, means that the concentration of this market is low, so it is highly competitive. , N1 H9 y1 t! a8 F5 g
A is incorrect; HHI does not take the possibility to entry into account, so it’s not a useful measure of potential barriers to entry. 2 l! @5 @+ j) `, u1 g
B is incorrect; oligopolies have highly control over prices. 1 w: t8 D# t4 x+ j5 |) j
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& e( S9 m9 l8 _' C% r# s9. In perfectly competitive industries, what is the most likely long-run effect of a permanent decrease in demand?
/ h' H% F7 p6 GA. Price decreases
6 U6 h4 X# q6 y- KB. Firms incur economic losses
. g0 d# ]6 G5 x" zC. The number of firms decrease
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8 ~" _1 O) h- M! i10. As compared with acting independently, a group of oligopolistic companies operating with perfect cooperation will most likely experience an increase in: * _* F1 S2 A6 D H& T* o, w
A. Both output and prices
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C. Prices and a decrease in output
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