2021AS经济考试复习指南 拿下Essay要考的elasticity就能直达A*

今年ALEVEL国际考试取消的几率目前来看还很小，大家现在有找到复习的重点和方向吗？本文就来为准备复习2021AS经济考试小伙伴，解析一个paper2每年必考的知识——elasticity，一起来结合真题聊聊如何填充逻辑框架和内容。把ESSAY分数拿到手，考试就稳啦。

（点击阅读ALEVEL经济真题解析,ESSAY这么写才能精准定位考点）

2021AS经济考试复习必看考点：elasticity

如果对AS的经济真题进行分析，你会发现，在Paper 2的essay里，弹性几乎是每年必考知识点，因此如果对这块知识点掌握得很好，那么AS阶段的Essay想拿高分其实很简单。

接下来让我们结合2018年AS经济考试真题看看这类essay怎么写。

3 (a) Explain the factors that can affect the value of the price elasticity of supply for a product. [8]

STEP1 建立答题框架

我们在动笔写essay之前要有一个逻辑框架。对于这种8分且命令词是explain的题，其答题框架很简单，大致如下：

Structure： 

Body

P1：Define key terms（PES）   

P2：Explain factor 1

P3：Explain factor 2

STEP2 让内容更有完整性

P4：Explain factor 3

有了框架之后，就需要考虑内容该写什么了。这道题很常规，是相关章节基础知识点的考察，学员们只要掌握好PES的概念、计算公式，经济意义和影响PES那几大因素就能做答了，当然我们在essay的写作中，一定要注意内容的完整性还有不要答偏题了。以下答案供同学们参考学习。

Define：Price elasticity of supply [PES] measures the degree of responsiveness in quantity supplied of a good due to a change in the price of the good itself. It is measured by PES= %∆QS / %∆P.A good is said to be elastic PES when a change in price leads to a more than proportionate change in the quantity supplied. The value of PES is more than one. Inelastic PES means a change in price will lead to a less than proportionate change in quantity supplied. The value of PES is between zero and one.

Body

Factor: Availability of spare capacity. When the level of production is at, or near, the level of full capacity, then, the supply of the good is likely to be inelastic PES. An increase in price will not be follow by the increase in supply due to capacity constraint. For example, if the factory is producing at full capacity, and increase in price of the good will not lead to increase in supply. The capacity will need to be raised before increase in output can materialized.

Factor: Time of production. If the good in question require a long period of production, for example agricultural good, then, the supply of the good is likely to be inelastic. The supply of the good cannot be increased in the short term, as time is required for the output to grow. Manufacturing goods, in general, are more elastic in PES due to the shorter period in the production process.

Factor: Mobility of factors. If the factors of production can be easily switched from producing one good to another, then, the PES will be more elastic. A higher price in jeans (clothing) can be matched by higher quantity as the material and machine can be easily switched to produce jeans from other clothing products. While an increase in the price of rubber, cannot be matched by increase in supply, as the rubber trees can only produce rubber and cannot produce any other things. Oil palm plantation can be switched to rubber plantation, though it will incur high cost and long period.

希望以上内容能帮助你更好地复习2021AS经济考试。英国政府已经官宣取消2021ALEVEL大考，导师评估的打分方案格外考验学员的平时表现，对考试型选手尤为不利。那英国本土考生应该如何调整复习策略，国际生又该如何未雨绸缪呢——两手准备是不变的真理。

1.根据考试时间与科目考试变化调整复习策略，积极复习。因为如果考试顺利开考，复习时间已经不多了。

2.努力将平时的课堂表现、测试、出勤、课上互动、课下作业等环节做得更好。因为这些都会直接关系到导师对你的评估，也会直接决定预估成绩或外部考核试卷的得分。

总之，对于努力又优秀的人来说，A*和都是不会跑的。

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唯寻学员。

。

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