📚 Year 10 CCEA Economics: Core Knowledge Points Recap | 核心知识点梳理
Welcome to your Year 10 CCEA Economics revision guide. This article brings together the essential concepts you need to master in your first year of GCSE Economics, from scarcity and opportunity cost to demand, supply and market equilibrium. Each section pairs an English explanation with a matching Chinese version, so you can deepen your understanding while building subject-specific vocabulary in both languages.
欢迎阅读 Year 10 CCEA 经济学复习指南。本文将梳理 GCSE 经济学第一年必须掌握的核心概念，涵盖稀缺性、机会成本、需求、供给以及市场均衡等内容。每个要点都配有中英文对照讲解，帮助你在巩固知识的同时积累学科双语表达。
1. The Nature of Economics | 经济学的本质
Economics is a social science that studies how people, businesses and governments make choices to allocate scarce resources among competing uses. It is divided into microeconomics, which looks at individual markets and decision-makers, and macroeconomics, which examines the economy as a whole.
经济学是一门社会科学，研究个人、企业和政府如何做出选择，将稀缺资源配置到不同用途中。它分为微观经济学和宏观经济学，前者关注单个市场和决策者，后者则把经济作为一个整体来考察。
A key idea in economics is that resources are limited but human wants are virtually unlimited. This creates the fundamental economic problem: how to satisfy as many wants as possible with the resources available.
经济学的核心理念是资源有限而人类欲望近乎无限。这就产生了基本经济问题：如何用现有资源尽可能满足更多的欲望。
- Microeconomics – focuses on supply and demand in individual markets, consumer behaviour and the behaviour of firms. | 微观经济学 – 关注单个市场的供求关系、消费者行为和企业行为。
- Macroeconomics – deals with inflation, unemployment, economic growth and government policies. | 宏观经济学 – 研究通货膨胀、失业、经济增长和政府政策。
2. Scarcity and Choice | 稀缺性与选择
Scarcity means that there are not enough resources to meet all human wants. Because of scarcity, individuals, firms and governments must make choices. Every choice involves a trade-off, where selecting one option means giving up another.
稀缺性意味着没有足够的资源来满足所有人的欲望。由于稀缺性的存在，个人、企业和政府都必须做出选择。每个选择都涉及权衡取舍，选择一种方案就意味着放弃另一种。
Scarcity is a permanent condition; it is not the same as a shortage, which is a temporary situation where demand exceeds supply at a given price. Scarcity forces us to prioritise and decide how best to use our limited resources.
稀缺性是一种永久状态，它不同于短缺——短缺是在特定价格下需求超过供给的暂时现象。稀缺性迫使我们做出优先排序，决定如何最优地利用有限资源。
3. Factors of Production | 生产要素
Resources used to produce goods and services are called factors of production. There are four main categories: land, labour, capital and enterprise. Land includes all natural resources; labour is the human effort; capital refers to man-made tools and machinery; and enterprise is the willingness to take risks and organise the other three factors.
用于生产商品和服务的资源称为生产要素。共有四大类别：土地、劳动、资本和企业家才能。土地涵盖所有自然资源；劳动是人的努力；资本指人造的工具和机器；企业家才能则是承担风险并组织其他三种要素的意愿。
Each factor earns a corresponding reward: land receives rent, labour earns wages, capital earns interest, and enterprise earns profit. Understanding these factors helps explain how production is organised and how income is distributed in an economy.
每种要素都有对应的报酬：土地获得地租，劳动赚取工资，资本获得利息，企业家才能赚取利润。理解这些要素有助于解释生产如何组织以及收入在经济中如何分配。
| Factor | Reward |
|---|---|
| Land | Rent |
| Labour | Wages |
| Capital | Interest |
| Enterprise | Profit |
4. Opportunity Cost and the Production Possibility Frontier | 机会成本与生产可能性边界
Opportunity cost is the value of the next best alternative forgone when a choice is made. It is a central concept because it reminds us that every decision has a cost, even when no money is spent.
机会成本是指做出选择时所放弃的次优替代品的价值。它是一个核心概念，提醒我们每个决策都有成本，即使没有实际花钱。
The production possibility frontier (PPF) is a diagram that shows the maximum combinations of two goods an economy can produce with its existing resources and technology. Points on the curve represent efficient production; points inside indicate unemployed resources; points outside are unattainable without economic growth.
生产可能性边界（PPF）是一条展示一个经济体利用现有资源和技术所能生产的两种商品最大组合的曲线。曲线上的点代表有效率的生产；曲线内的点表示资源未充分利用；曲线外的点在没有经济增长的情况下无法达到。
Opportunity Cost = Value of Next Best Alternative Forgone | 机会成本 = 所放弃的次优替代品价值
Moving along the PPF illustrates opportunity cost: to produce more of one good, society must give up some of the other good. The shape of the PPF can be straight (constant opportunity cost) or concave (increasing opportunity cost).
沿着 PPF 移动可以说明机会成本：要生产更多的一种商品，社会必须放弃一些另一种商品。PPF 的形状可以是直线（机会成本不变）或凹向原点（机会成本递增）。
5. Economic Systems | 经济体系
An economic system determines how a society answers the three basic economic questions: What to produce? How to produce? For whom to produce? The main types are market economies, planned (command) economies and mixed economies.
经济体系决定了一个社会如何回答三个基本经济问题：生产什么？如何生产？为谁生产？主要类型有市场经济、计划（指令）经济和混合经济。
- Market economy – decisions are made by private individuals and firms through the price mechanism, with minimal government intervention. | 市场经济 – 决策由私人个体和企业通过价格机制做出，政府干预极少。
- Planned economy – the government owns resources and makes all key decisions about production and distribution. | 计划经济 – 政府拥有资源，并就生产和分配做出所有关键决策。
- Mixed economy – both the market and the government play important roles; most real-world economies are mixed. | 混合经济 – 市场与政府都扮演重要角色；现实世界中的大多数经济体都是混合经济。
In CCEA Economics, you will learn to evaluate the advantages and disadvantages of each system, such as efficiency versus equity, and how different countries combine market forces with government policies.
在 CCEA 经济学课程中，你将学习评估每种体系的优缺点，如效率与公平的权衡，以及不同国家如何将市场力量与政府政策结合起来。
6. Markets and the Price Mechanism | 市场与价格机制
A market is any arrangement that allows buyers and sellers to exchange goods or services. Markets can be local, national or global, and they exist both physically and online. The price mechanism describes how prices adjust to balance supply and demand, acting as signals and incentives.
市场是允许买卖双方交换商品或服务的任何安排。市场可以是地方性的、全国性的或全球性的，有实体市场和线上市场之分。价格机制描述了价格如何调整以平衡供求，起着信号和激励的作用。
The price mechanism performs three key functions: signalling – prices indicate where resources are needed; incentive – higher prices encourage producers to supply more; and rationing – scarce goods go to those willing and able to pay.
价格机制执行三个关键功能：信号功能——价格指示资源需求所在；激励功能——较高价格鼓励生产者增加供给；配给功能——稀缺商品流向那些愿意且能够支付的人。
7. Demand | 需求
Demand is the quantity of a good or service that consumers are willing and able to buy at various prices over a given period, ceteris paribus (all other things being equal). The law of demand states that, generally, as price falls, quantity demanded rises, leading to a downward-sloping demand curve.
需求是指在其他条件不变的前提下，消费者在一定时期内愿意并能够以不同价格购买的商品或服务数量。需求定律指出，一般来说，价格下降则需求量上升，导致需求曲线向右下方倾斜。
Factors that can shift the demand curve include changes in income, tastes and preferences, the price of substitutes and complements, advertising, population changes and expectations. A shift to the right indicates an increase in demand; a shift to the left indicates a decrease.
能够使需求曲线移动的因素包括收入变化、偏好变化、替代品和互补品价格变化、广告、人口变化以及预期。曲线右移表示需求增加；左移表示需求减少。
It is vital to distinguish between a movement along the demand curve (caused by a change in the good's own price) and a shift of the demand curve (caused by changes in other determinants).
区分需求曲线上的移动（由商品自身价格变化引起）和需求曲线的平移（由其他决定因素变化引起）至关重要。
8. Supply | 供给
Supply is the quantity of a good or service that producers are willing and able to offer for sale at various prices over a given period. The law of supply states that, generally, as price rises, quantity supplied rises, giving an upward-sloping supply curve.
供给是指在一定时期内，生产者愿意并能够以不同价格出售的商品或服务数量。供给定律指出，一般来说，价格上升则供给量上升，形成向右上方倾斜的供给曲线。
Shifts in the supply curve can be caused by changes in production costs, technology, indirect taxes, subsidies, the number of sellers, weather conditions (for agricultural goods) and expectations. A rightward shift means more is supplied at each price; a leftward shift means less.
供给曲线的平移可能由生产成本变化、技术变化、间接税、补贴、供应商数量、天气条件（农产品）和预期等因素引起。右移表示在每个价格下供给量增加；左移表示供给量减少。
9. Market Equilibrium and Price Determination | 市场均衡与价格决定
Equilibrium occurs at the price where quantity demanded equals quantity supplied. At this point there is no tendency for price to change, and the market clears. Diagrammatically, it is the intersection of the demand and supply curves.
均衡出现在需求量等于供给量的价格水平上。此时价格没有变动的趋势，市场出清。在图形上，均衡是需求曲线与供给曲线的交点。
If the market price is set above equilibrium, there is excess supply (a surplus), putting downward pressure on price. If the price is below equilibrium, excess demand (a shortage) puts upward pressure on price. These automatic adjustments move the market back toward equilibrium.
如果市场价格高于均衡价格，会出现超额供给（过剩），对价格产生下行压力。如果价格低于均衡，超额需求（短缺）则对价格产生上行压力。这些自动调整促使市场回归均衡。
Changes in demand or supply lead to a new equilibrium price and quantity. You should be able to analyse how specific events affect market outcomes using demand and supply diagrams.
需求或供给的变化会导致新的均衡价格和数量。你应能运用供求图分析特定事件如何影响市场结果。
10. Price Elasticity of Demand | 需求的价格弹性
Price elasticity of demand (PED) measures how responsive quantity demanded is to a change in price. It is calculated using the formula:
需求的价格弹性（PED）衡量需求量对价格变化的反应程度。其计算公式为：
PED = % Change in Quantity Demanded ÷ % Change in Price
- Elastic demand (PED > 1) – quantity demanded changes proportionately more than price; total revenue moves in the opposite direction to price. | 富有弹性 (PED > 1) – 需求量变动比例大于价格变动比例；总收益与价格变动方向相反。
- Inelastic demand (PED < 1) – quantity demanded changes proportionately less than price; total revenue moves in the same direction as price. | 缺乏弹性 (PED < 1) – 需求量变动比例小于价格变动比例；总收益与价格变动方向相同。
- Unitary elastic demand (PED = 1) – demanded changes by exactly the same percentage as price; total revenue remains constant. | 单位弹性 (PED = 1) – 需求量与价格同比例变动；总收益保持不变。
Determinants of PED include the availability of substitutes, the proportion of income spent on the good, whether it is a necessity or luxury, and the time period considered. Firms use PED estimates to set prices strategically.
PED 的决定因素包括替代品可得性、商品占收入的比例、属于必需品还是奢侈品，以及所考虑的时间长短。企业利用 PED 估算值来制定战略价格。
11. Price Elasticity of Supply | 供给的价格弹性
Price elasticity of supply (PES) measures how responsive quantity supplied is to a change in price. The formula is:
供给的价格弹性（PES）衡量供给量对价格变化的反应程度。公式为：
PES = % Change in Quantity Supplied ÷ % Change in Price
the length of the production period, the availability of spare capacity, the ease of switching resources between uses, and the time frame – supply is typically more elastic in the long run.
供给弹性可以分为富有弹性 (PES > 1)、缺乏弹性 (PES < 1) 或单位弹性 (PES = 1)。PES 的主要决定因素包括生产周期的长度、闲置产能的可用性、资源在不同用途之间转换的难易程度，以及时间范围——长期中供给通常更富弹性。
12. Introduction to Market Failure | 市场失灵导论
Market failure occurs when the free market, left to itself, fails to allocate resources efficiently. This leads to a net social welfare loss. Common types of market failure relevant to Year 10 include externalities, public goods and information problems.
市场失灵是指自由市场自行运行时无法有效配置资源，导致社会净福利损失的情形。与 Year 10 相关的常见市场失灵类型包括外部性、公共物品和信息问题。
- Externalities are costs or benefits that affect third parties not involved in the transaction. Negative externalities (e.g. pollution) lead to overproduction; positive externalities (e.g. education) lead to underproduction. | 外部性 指影响交易无关第三方的成本或收益。负外部性（如污染）导致过度生产；正外部性（如教育）导致生产不足。
- Public goods are non-excludable and non-rivalrous, meaning people cannot be stopped from using them and one person's use does not reduce availability to others. Street lighting and national defence are examples. Markets tend to under-provide public goods. | 公共物品 具有非排他性和非竞争性，意味着无法阻止人们使用，且一人的使用不会减少对他人的可用性。路灯和国防就是例子。市场往往会供给不足。
- Information failures occur when consumers or producers lack full information to make rational choices, leading to misallocation of resources. | 信息失灵 发生在消费者或生产者缺乏完全信息以做出理性选择时，导致资源错配。
Understanding market failure lays the foundation for studying government intervention, which you will explore further in your GCSE course.
理解市场失灵为学习政府干预奠定了基础，后续 GCSE 课程中将进一步探讨这一内容。
Published by TutorHao | Economics Revision Series | aleveler.com
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