关于
A-level考试,在这边小编真诚地建议同学们,大家就把contestable market当作一个new market,在你还不是很熟悉他的时候,不要把他与其他market structure联系起来,等你对他认识充分的时候,你尽可以大胆地将之与其他market 进行比较,不过切记,距离产生美。
关于contestable market的几大特点要牢牢把握:
定义如下:
Contestable market: any market structure where there is a threat that potential are free and able to enter this market.
特点如下:
The number of firms in the industry may vary from one (a monopolist) having complete control of the market, to many, with no single firm having a significant share of the market.
In a contestable market, there is freedom of entry to and exit from the market. This means there will be no sunk costs.
Firms are short-run profit maximisers, producing where MC = MR.
There is perfect knowledge in the industry.
The potential forhit-and-runcompetition exists.
重中之重点小编已经画出来了,大家务必注意,在写作的时候你会发现永远离不开对low barriers,sunk cost的讨论,从而努力证明某某市场具有contestability。
所以,这里也要求同学们独具慧眼地在材料中寻找可能跟contestability相关的蛛丝马迹。