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A-level经济之PPF如何高效记忆?

来源:      浏览:      发布日期:2019-03-07 11:42

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在A-level经济的学习中,有很多基本概念的学习,今天,锦秋小编将重点为大家介绍的是A-level经济学中PPF的概念记忆。

下面我们以PPF的定义为例:

Key point 1

The definition of PPF:

Key words:

1. the maximum productive potential (the essence of PPF)

2. a combination (the way to embody PPF)

A-level经济学

3. be fully and efficiently employed (the prerequisite for PPF diagram)

PPF shows the maximum productive potential of an economy, using a combination of two goods and services when all the resources are fully and efficiently employed.

Key point 2

The economic implication of the points inside,outside or on the PPF

A, B and C are the points where all the resources are fully and efficiently employed.

Y is the unattainable point as the existing resources may fail to make point Y happen.

X is the point where the resources are underutilized.

Key point 3

PPF & Opportunity cost

Each combination means a choice.

Switching from one combination to another means choices are made, bringing about opportunity cost.

For example, the increasing output of product B comes at the cost of product A.

Hence, the opportunity cost of the expanding production of B is the production of A forgone.

通过PPF及相关概念的深入解析后,我们将这些概念代入真题中应用一下吧。

Essay writing from past papers(CIE):

Explain how governments face increasing opportunity cost in their decision-making. Use a production possibility curve diagram to support your answer. (8’)

Tips and tricks in essay writing:

1. Define the economic concepts and give their definition. (Knowledge)

2. Illustrate each economic concept with an example, a logic chain or a diagram. (Application & Analysis)

3. If the words such as 'evaluate, assess, examine' and something like that can be found in the question, evaluation is needed. Perspectives like time period, significance and other relative economic principles are encouraged to be considered. (Evaluation)

Reference version:

Opportunity cost is the benefit of the next best alternative forgone. PPC is the maximum productive potential of an economy, using a combination of two goods and services when all the resources are employed fully and efficiently employed. (Knowledge)

Governments face opportunity cost when they have to decide what to produce. (Analysis) For example, the opportunity cost of government spending on public health is the spending on national defense that has to be forgone.(Application)

The opportunity cost increases as resources shift from the production of one type of good to another.The sacrifice may become greater as less resources are devoted to the production of its alternative goods and services. (Analysis)

以上就是A-level经济概念高效记忆法的介绍,想要了解更多A-level相关课程及考试等信息,请扫码关注锦秋A-level,新航道集团与英国考试局Edexcel合作,在全国16个城市率先推广并展开教学活动,在青岛、杭州、济南、武汉、北京、上海、石家庄、长沙、郑州、成都、西安、广州已获得考点授权,锦秋A-Level项目针对不同学员的不同层次的学习需求,设置一站式计划、G5学霸计划和国际班互补计划三大课程体系,并且有针对性的制定课程计划和教学方式,开设的课程有数学、进阶数学、物理、化学、生物、经济学、会计学等,紧抓中国学生理科优势,进行课程组合化。

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