According to the theory of contestable market, performance of firms or industries is affected to a large extent by the markets' contestability.

根据可竞争市场理论，企业和行业的经济绩效在很大程度上取决于市场可竞争性。

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On the contrary, if there are high barriers to entry and low contestability, incumbents will always abuse their market power and incur some kinds of efficiency losses.

如果市场进入壁垒很高，市场可竞争程度很低，在位厂商可以免受竞争的压力，因而往往滥用市场势力，造成种种效率损失。

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The policies it bought were all past the standard two-year contestability period, Mr. Thomas said.

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Given this contestability Apple cannot simply rest on its laurels and bleed the consumers dry.

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Choice is only truly meaningful when it sits alongside contestability: the ability to contest, or challenge, poor performance by turning to an alternative that is able to deliver the service more effectively.

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