Non-economists tend to think of economics as a discipline that idolizes markets and a narrow concept of (allocative) efficiency. If the only economics course you take is the typical introductory survey, or if you are a journalist asking an economist for a quick opinion on a policy issue, that is indeed what you will encounter.
几乎没有经济学家认为经济学是把市场看作一成不变，一种单一的经济理论不可能解释整个市场。如果你只是参加一个入门的经济学课程，或是你是一个记者，问经济学家对当前政策的简要评论时，你可以会得到这个粗浅的答案。而当你再进一步学习经济学课程，或是在高级研讨班里再多花一些时间，你就会得出完全不同的答案。