理想状态下的市场能够达到高效生产：将总剩余(total surplus)最大化。 但是在现实中的市场并非完美。在本课程中，我们将探索一系列市场存在着缺陷的情形并且理解为什么会出现这些缺陷；同时，我们会了解一些改进措施，比如反托拉斯(antitrust)政策以及其他一些政府的干预措施。 我们会选取日常中的例子——从我们每天购买和享用的货物和服务开始。我们也会在每周的练习里把理论运用到时下大事和政策研讨中。 所有的这些都会使你成为一个可以理解、分析和评价市场结果的，有学识的，有批判精神的思考者。
1.3.2: Perfect Competition: Firm Entry When Profits are Negative
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您將學習的技能
Externality, Economics, Microeconomics, Market (Economics)
審閱
DV
Oct 24, 2018
Love how the videos were brief, but informative. Very helpful class and exams weren't overly complicated. In the end, I felt as though I retained much of the knowledge.
VR
May 24, 2017
I came here for the videos! Extremely concise and accurate. Very good for reviewing material. I speak from the level of an HL Economics student in the IB.
從本節課中
Costs and Profits + Perfect Competition
In the first part of the course we learnt that if we allow market forces to work we reach an efficient outcome: the maximum benefit that can be generated by a market. The second part of the course explores cases where the markets fail to accomplish our goals. This week sets up the benchmark case of the perfectly competitive market: a model we will modify in the next few weeks. We define Perfect Competition, learn to model it graphically and discuss some key results in terms of long run profits and implications for efficiency.
教學方
Rebecca Stein
Senior Lecturer
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