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  3. A market is defined as perfectly contestable ifA、entry to it is costless, but ex

A market is defined as perfectly contestable ifA、entry to it is costless, but ex

游客2025-06-20  5
问题 A market is defined as perfectly contestable if
选项 A、entry to it is costless, but exit from it is costly
B、entry to it is costly, but exit from it is costless
C、entry to it and exit from it are both costly
D、entry to it and exit from it are both costless
答案 D
解析 答案为D项。完全竞争市场中，进入和退出门槛都非常低。故本题选D项。
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