第五章测试1.
In a market with a dominant firm, it makes sense to assume that ( )
A:
the dominant firm will set the industry price and the fringe firms will take that price as given.
B:the fringe firms will set the industry price and the dominant firm will take that price as given.
none of the above
D:the dominant firm will set the industry price and the fringe firms will also make their price.
答案:A
2.In US Steel model, we can find the dominant firm’s residual demand curve by subtracting the fringe supply curve from the total demand curve at every price greater than P = $25.
A:对 B:错 3.
According to the assumption of “ Entry is free” in the theory of contestable market, ( )
A:
Entrants could be on completely equal footing with established firms, even with an established monopolist.
B:Entrants could not be on completely equal footing with established firms, even with an established monopolist.
C:Entrants could be on completely equal footing with established firms, but could not be with an established monopolist.
D:The rest of the choices are wrong4.
According to contestable market assumption, absolute entry implies that the entry lag is more than the price adjustment lag: a new firm can enter a market and sell its product before the established firms can react and change their prices.
A:对 B:错 5.
According to theory of contestable market assumption, the assumption of no sunk costs implies that a firm could sell its production facilities for their present value in a resale market or could use them in another market without any losses.
A:对 B:错 6.
If a consumer feels much better as more consumers use "wechat", the network externality is ( )
A:
negative
B:not sure
C:zero
D:positive
7.Negative Externality exists when consumers are better off as the number of users of the same brand increasesA:错 B:对 8.Direct Network Externality refers to the benefit to an individual consumer depends directly on the number of other users of the product.
A:对 B:错 9.Indirect Network Externality arises because of complementarity.
A:对 B:错 10.
In email's application, it shows network externality and it should be negative.
A:错 B:对
