a-level考试有70多个科目可以选择，其中，a-level经济是常考科目之一，在备考的时候有许多的技巧可以掌握，下面，锦秋小编就来为大家介绍一下a-level经济的高分备考经验，供大家参考。
tip 1-事件的影响
纵观整个经济大纲，经常会要求学生评估事件对某一事物的影响。
在解决类似问题的时候，可以参考这些分析范围：
tip 2-集中精力于经济分析
写经济essay的时候，时间总是紧张的。那么知道内容比例的划分就尤为重要，解释content占多少，简洁的explanation占多少。
有一个70/30的原则。举两个例子：
theory of ca包含很有价值的经济分析，学生应该解释它的假想条件，比较机会成本比率，得出贸易可以获得什么。
material sol要求具体的经济分析，包括实际gcp与名义上的gdp数字、收入分配、按ppp计算的gdp。
tip 3-合理性检查
非常有用，但也经常被忽视的一点。意思就是看一下自己的topic sentences，是否用直接的方式回答了问题。有时候，我们有些段落可能是用来介绍背景信息但却没有直接回答问题。
举个例子
explain why the price of fuel tends to be more volatile than other secondary products. (10m)
topic sentence (version 1): the ped of fuel is affected by a number of factors, including its degree of necessity. supply of fuel is also affected by a number of different factors.
topic sentence (version 2): demand for fuel is price-inelastic due to its nature as a necessity. supply may also fluctuate given unstable conditions in themiddle east, a major oil producing region. an unstable supply curve coupled with an inelastic demand curve would lead to wide and frequent fluctuations in price.
tip 4-记住内容
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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