应该很多小伙伴们都对ALevel考试中经济学的考试比较犯愁，大家在记忆内容总是十分头疼，今天背的明天就忘了，那么小编今天就告诉大家ALevel经济学如何更好的记住内容，一起来看看吧。
学习内容很多的概念时（比如说弹性概念、规模经济、进入壁垒），可以参照一个DDEE的原则保证答案的完整性。
Definitions
Diagrams
Explanation
Examples
这样学习概念更方便记忆，因为之前大家的知识是分段的。
比方说遇到“Differentiate between internal and external economies of scale (10m)”这样的问题，
根据DDEE原则就能立马想出essay结构：
Definition: Internal EOS are reaped due to growth of the firm while external EOS are independent of firm size and are attributed to growth of the industry.
Diagram: Internal EOS is seen diagrammatically as a movement downwards along the long run average cost curve (LRAC) while external EOS manifests as a downward shift of the entire LRAC.
Explanation / Examples: Sources of internal EOS include technical, marketing, financial or managerial economies. On the other hand, external EOS takes the form of economies of information, concentration or disintegration.
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