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【单选题】
What do we mean when we say something is a piece of cake?A.
It is the only answer
B.
It is only part of a problem
C.
It is easy
D.
It is difficult
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【判断题】For a cartel behaving like a pure monopoly, equating marginal revenue to marginal cost maximizes profit over and above the perfectly competitive profit.
A.
正确
B.
错误
【单选题】Pure monopoly is characterized by
A.
many firms that produce a homogeneous product
B.
many firms that produce slightly different products that are close substitutes
C.
such a small number of firms that each must figure out how the others will respond to its own actions
D.
one firm, with no competitors, that produces a product with no close substitutes
【单选题】Pure monopoly:
A.
is characterized by a single supplier.
B.
is a market structure in which no close substitute products are available.
C.
exists when entry and survival of potential competitors is extremely unlikely.
D.
is characterized by all of the above.
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