What is meant by a four-firm concentration ratio of $$\(25 \%\)$$ ?
A.
The largest four firms' market share totals \(25 \%\).
B.
The largest four firms have a market share of \(25 \%\) each.
C.
There are only four firms in the industry.
D.
The largest firm has a \(25 \%\) market share.
Exam No：9708_w24_qp_33 Year：2024 Question No：10
Answer:
A
Knowledge points:
7.6.1 perfect competition and imperfect competition: monopoly, monopolistic competition, oligopoly, natural monopoly
7.6.5 definition and calculation of the concentration ratio
Solution:
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