📚 Year 10 WJEC Economics: Key Terms & Memory Hacks | 词汇术语速记指南
Mastering economic terminology is the foundation of success in WJEC GCSE Economics. Many exam questions require precise definitions, and applying them correctly in context can lift your grade significantly. This guide presents essential Year 10 terms with simple memory hacks, linking each concept to real-world examples you already know. Use these techniques to build a durable mental glossary that sticks beyond the exam.
掌握经济学术语是 WJEC GCSE 经济学成功的基础。许多考题要求精确的定义，准确运用术语能明显提高你的成绩。这份指南列出了 Year 10 的核心术语，并配有简单的记忆窍门，把每个概念与你已经熟悉的现实例子联系起来。用这些方法建立一个牢固的心理词汇库，让它不仅为考试服务，也能长久留存。
1. Scarcity and the Basic Economic Problem | 稀缺性与基本经济问题
Scarcity means that there are limited resources but unlimited wants. The basic economic problem asks: 'What to produce, how to produce, and for whom to produce?' A quick mnemonic is W-H-W, like the question words 'What, How, Who'. Remember that scarcity forces every economy to make choices.
稀缺性指资源有限而欲望无限。基本经济问题问的是：“生产什么、如何生产、为谁生产？”一个速记口诀是“产-法-人”，对应三个核心提问。记住，正是稀缺性迫使每个经济体做出选择。
- Scarcity (稀缺): limited resources vs. unlimited wants – 资源有限 vs 欲望无限
- Choice (选择): deciding between alternatives – 在替代方案中抉择
- Resources (资源): land, labour, capital, enterprise – 土地、劳动、资本、企业家才能
Memory hack: Think of a pizza. You have a limited number of slices (resources), but many friends want a piece (wants). You must decide how to cut it (what to produce), who bakes it (how to produce), and who gets a slice (for whom).
记忆技巧：想象一个披萨。你只有有限的几块（资源），但很多朋友都想吃（欲望）。你必须决定切成几块（生产什么）、谁来烤（如何生产）以及分给谁（为谁生产）。
2. Factors of Production and Their Rewards | 生产要素及其回报
Land, labour, capital, and enterprise are the four factors of production. Each earns a specific reward: land receives rent, labour earns wages, capital generates interest, and enterprise gains profit. Link them with the acronym C.E.L.L. (Capital, Enterprise, Land, Labour) and remember the rewards as 'WIReP' – Wages, Interest, Rent, Profit.
土地、劳动、资本和企业家才能是四大生产要素。每种要素获得特定的报酬：土地得租金，劳动得工资，资本得利息，企业家才能得利润。可以用谐音“资企土地劳”来记住四项，用“工资利息租利润”对应回报。
| Factor 要素 | Reward 回报 | Example 举例 |
|---|---|---|
| Land | Rent | Farmland, oil fields |
| Labour | Wages | Teacher's salary |
| Capital | Interest | Machinery, tools |
| Enterprise | Profit | Start-up founder's gain |
Memory hack: Visualise a factory. The building sits on land (rent), workers provide labour (wages), machines are capital (interest), and the risk-taker who runs it earns profit.
记忆技巧：想象一家工厂。厂房坐落于土地（租金），工人提供劳动（工资），机器是资本（利息），而承担风险的经营者获得利润。
3. Opportunity Cost – The Next Best Alternative | 机会成本——次优选择
Opportunity cost is the value of the next best alternative forgone whenever a choice is made. It is not all the other options, only the one you most wanted after your chosen item. In WJEC answers, always stress 'next best alternative foregone'.
机会成本是做出选择时所放弃的次优选择的价值。它不是所有其他选项，而是你舍弃的那个最想要的替代项。在 WJEC 答题中，一定要强调“所放弃的次优选择”。
Example: If you spend £10 on a cinema ticket instead of a book, the opportunity cost is the book you could have bought. It is not the book plus a meal; only the single best sacrifice.
举例：你用 10 英镑买了电影票而不是一本书，那么机会成本就是那本没买成的书。它不是书加一顿饭，只是那一个最优的牺牲品。
Memory hack: Use the 'T-Chart' method. Draw two columns: 'Chosen' and 'Sacrificed'. Under 'Sacrificed', circle the one you value most. That circle is your opportunity cost.
记忆技巧：使用“T 形图表”。列出两栏：“已选”和“放弃”。在“放弃”栏中圈出你最看重的那个，这个圈着的就是机会成本。
4. Demand, Supply and the Market Mechanism | 需求、供给与市场机制
The law of demand states that, ceteris paribus, as price falls, quantity demanded rises. The law of supply states that as price rises, quantity supplied rises. The market equilibrium is where demand equals supply. Use the memory phrase 'D goes down, S goes up' – when price drops, demand quantity increases; when price climbs, supply quantity increases.
需求定律指出，其他条件不变时，价格下跌，需求量上升。供给定律指出，价格上升，供给量上升。市场均衡是需求等于供给之处。记住口诀“价跌需增，价涨供增”。
Changes in non-price factors (like income, tastes, costs of production) shift the entire curve. A handy mnemonic for demand shifters is 'PIRATES': Population, Income, Related goods, Advertising, Tastes, Expectations, Seasons. For supply, think 'PINTS': Productivity, Indirect taxes, Number of firms, Technology, Subsidies.
非价格因素（如收入、偏好、生产成本）的变化会使整条曲线移动。需求移动因素的助记法是“PIRATES”：人口、收入、相关商品、广告、偏好、预期、季节。供给的助记是“PINTS”：生产率、间接税、企业数量、技术、补贴。
Memory hack: Picture a seesaw. Price is the fulcrum. Left side is demand, right side is supply. When price changes, you only move along the beams (movement along the curve). When something else changes, the whole beam shifts.
记忆技巧：想象一个跷跷板。价格是支点。左边是需求，右边是供给。价格改变时，你仅沿着杠杆移动（沿曲线移动）。其他因素变化时，整个杠杆平移。
5. Price Elasticity of Demand (PED) | 需求的价格弹性
Price elasticity of demand measures the responsiveness of quantity demanded to a change in price. The formula is:
需求的价格弹性衡量需求量对价格变化的反应程度。公式为：
PED = (% Change in Quantity Demanded) / (% Change in Price)
is inelastic (necessities, addictive goods). A PED of exactly 1 is unit elastic. Remember: 'Elastic = stretchy, responsive; Inelastic = stiff, unresponsive.'
若 PED > 1，需求有弹性（奢侈品）；若 PED < 1，需求缺乏弹性（必需品、成瘾品）。PED 恰好为 1 则是单位弹性。记法：“弹性——敏感像橡皮筋；缺乏弹性——迟钝像木棍”。
Memory hack: Use the 'PED pizza' visual. A price cut on pizza (elastic for many) boosts demand a lot. A price cut on insulin (inelastic) barely changes demand. Think: 'Elastic stretches quantity; inelastic ignores price.'
记忆技巧：用“PED 披萨”来想。披萨降价（对许多人弹性）大幅刺激需求。胰岛素降价（缺乏弹性）需求几乎不变。记住：“弹性让数量拉伸；缺乏弹性对价格不理不睬”。
6. Market Failure and Externalities | 市场失灵与外部性
Market failure occurs when the free market does not allocate resources efficiently, leading to a net social loss. Key types include externalities, public goods, merit/demerit goods, and information failure. Externalities are third-party spillover effects not reflected in prices. Negative externalities (e.g., pollution) cause over-production; positive externalities (e.g., education, vaccines) cause under-production.
市场失灵指自由市场未能有效配置资源，导致社会净损失。主要类型有外部性、公共产品、优值/劣值商品和信息不对称。外部性是指未反映在价格中的第三方溢出效应。负外部性（如污染）导致过度生产；正外部性（如教育、疫苗）导致生产不足。
ply curve. For positive externalities, the social benefit curve lies above the demand curve. Mnemonic: 'NegEx = over, PosEx = under' – overproduction vs underproduction.
视觉辅助：在市场均衡旁画一个三角形的无谓损失。对于负外部性，社会成本曲线位于供给曲线上方；对于正外部性，社会收益曲线位于需求曲线上方。口诀：“负外——过度；正外——不足”——过度生产与生产不足。
Memory hack: Imagine a smoking chimney. The factory owner only pays private costs, but neighbours suffer from smoke (negative externality). The result: too many cigarettes produced. For positive, think of a beekeeper whose bees pollinate nearby orchards – a benefit not paid for, so too few beehives exist.
记忆技巧：想象一个冒烟的烟囱。厂主只承担私人成本，邻居却受到烟雾困扰（负外部性）。结果：香烟生产过多。至于正的，想象养蜂人的蜜蜂为附近果园授粉——这是一种无人付费的好处，所以蜂箱太少。
7. Public Goods and the Free Rider Problem | 公共产品与搭便车问题
A public good is non-excludable and non-rivalrous. Non-excludable means you cannot stop people from using it, even if they don't pay. Non-rivalrous means one person's use does not reduce availability for others. Classic examples: street lighting, national defence, flood control. The free rider problem occurs because individuals have no incentive to pay, so private firms will not supply the good, leading to market failure.
公共产品具有非排他性和非竞争性。非排他性指无法阻止未付费者使用；非竞争性指一人的使用不会减少他人可用的数量。经典例子：路灯、国防、防洪。搭便车问题因个人缺乏付费动机而产生，私营企业不愿供给，导致市场失灵。
Remember the two features with the question: 'Can I stop you?' (non-excludable) and 'Does my use leave less for you?' (non-rivalrous). If both answers are NO, it's a pure public good.
用两个问题记住特征：“我能阻止你吗？”（非排他）和“我的使用会让你少得吗？”（非竞争）。两个回答都为“否”就是纯公共产品。
Memory hack: Think of a lighthouse. Ships cannot be stopped from seeing its light (non-excludable), and one ship seeing it doesn't dim the light for others (non-rivalrous). No ship has an incentive to pay, so lighthouses are often provided by government.
记忆技巧：想到灯塔。船只无法被禁止看到灯光（非排他），且一艘船看到并不会使灯光对其他船变暗（非竞争）。没有船只有动力付费，因此灯塔通常由政府提供。
8. Macroeconomic Objectives and Indicators | 宏观经济目标与指标
Governments typically pursue four macroeconomic objectives: low and stable inflation, low unemployment, sustainable economic growth, and a satisfactory balance of payments. In the UK, inflation is targeted at 2% (CPI). A handy mnemonic is 'TIGER': Trade equilibrium, Inflation control, Growth, Employment, Redistribution – though the last is sometimes added. But WJEC focuses on the first four. Recall 'BIG U': Balance of payments, Inflation, Growth, Unemployment.
政府通常追求四大宏观经济目标：低且稳定的通胀、低失业、可持续的经济增长、令人满意的国际收支。英国通胀目标为 2%（CPI）。助记法：“BIG U”——国际收支（Balance）、通胀（Inflation）、增长（Growth）、失业（Unemployment）。
Indicators include GDP (Gross Domestic Product), CPI (Consumer Price Index), unemployment rate (claimant count and LFS), and current account balance. Economic growth is measured by % change in real GDP. Recession is defined as two consecutive quarters of negative GDP growth.
指标包括国内生产总值 (GDP)、消费者价格指数 (CPI)、失业率（申请人数和劳动力调查）和经常账户差额。经济增长用实际 GDP 的百分比变动衡量。衰退定义为连续两个季度 GDP 负增长。
Memory hack: Picture a car dashboard. Four dials: speedometer (Growth), temperature gauge (Inflation), fuel gauge (Employment), and engine warning light (Balance of Payments). When all are in the green zone, the economy is running smoothly.
记忆技巧：想象汽车仪表盘。四个表盘：速度表（增长）、温度计（通胀）、油量表（就业）、引擎警示灯（国际收支）。所有指针都在绿色区域，经济运行平稳。
9. Fiscal and Monetary Policy Instruments | 财政与货币政策工具
osts demand; contractionary fiscal policy (lower spending, higher taxes) cools an overheating economy. Monetary policy uses interest rates and the money supply, carried out by the central bank (Bank of England). A common exam trick: remember fiscal = 'Fisc' related to the treasury, i.e., government budget; monetary = money, central bank.
财政政策运用政府支出和税收影响经济。扩张性财政政策（增加支出、减税）刺激需求；紧缩性财政政策（减少支出、加税）为过热经济降温。货币政策由中央银行（英格兰银行）使用利率和货币供应量。考试诀窍：记住 fiscal 与“财政、国库”相关，即政府预算；monetary 与“钱”相关，指央行。
Direct and indirect taxes: direct taxes are on income and wealth (income tax, corporation tax); indirect taxes are on spending (VAT, excise duties). A helpful link: 'Direct – you pay directly to government; Indirect – you pay via a purchase.'
直接税和间接税：直接税针对收入和财富（所得税、公司税）；间接税针对支出（增值税、消费税）。助记：“直接——你直接向政府缴纳；间接——你通过购物缴纳”。
Memory hack: Imagine two levers in a control room. Lever 1 says 'G & T' (Government spending & Taxation) – that's fiscal policy. Lever 2 says 'i' for interest rates – that's monetary policy. When inflation is high, pull the 'i' lever up (raise rates).
记忆技巧：想象控制室里的两个操纵杆。操纵杆 1 标着“G & T”（政府支出和税收）——这是财政政策。操纵杆 2 标着“i”代表利率——这是货币政策。通胀高企时，拉高“i”操纵杆（加息）。
10. International Trade and Exchange Rates | 国际贸易与汇率
Imports are goods bought from abroad; exports are goods sold abroad. The balance of trade is exports minus imports. A trade surplus means exports > imports, a deficit the opposite. Exchange rates are the price of one currency in terms of another. A stronger pound (appreciation) makes exports dearer and imports cheaper; a weaker pound (depreciation) makes exports cheaper and imports dearer. Remember SPICED: Strong Pound, Imports Cheaper, Exports Dearer.
进口是从国外购买的商品；出口是卖给国外的商品。贸易差额等于出口减进口。贸易顺差指出口大于进口，逆差相反。汇率是一种货币以另一种货币表示的价格。英镑走强（升值）使出口更贵、进口更便宜；英镑走弱（贬值）使出口更便宜、进口更贵。记住 SPICED：Strong Pound, Imports Cheaper, Exports Dearer。
Free trade brings benefits like comparative advantage, greater choice, and lower prices, but also challenges such as job losses in uncompetitive industries. Protectionism includes tariffs, quotas, and subsidies to domestic firms. WJEC often asks to evaluate these policies.
自由贸易带来比较优势、更多选择和更低价格等好处，但也带来挑战，如缺乏竞争力行业的失业。保护主义包括关税、配额和对国内企业的补贴。WJEC 经常要求评估这些政策。
Memory hack: Visualise a seesaw with '£' in the middle. When the pound strengthens, the export side goes up (expensive), import side goes down (cheap). Weak pound flips the positions. For protectionism, imagine a shield (tariff) blocking cheap foreign arrows.
记忆技巧：想象一个中间写有“£”的跷跷板。英镑走强时，出口端上升（变贵），进口端下降（变便宜）。英镑走弱则位置互换。对于保护主义，想象一块盾牌（关税）阻挡廉价的外来箭矢。
11. Glossary Speed-Review with Mnemonics | 术语速查与助记表
Below is a rapid-fire revision table linking key WJEC Year 10 terms to one-line memory triggers. Use it for last-minute recall.
下面是一个速查表，将 WJEC Year 10 核心术语与一行记忆触发语连接起来。适用于考前快速回顾。
| Term 术语 | Quick meaning 简义 | Memory trigger 记忆触发 |
|---|---|---|
| Ceteris paribus | All else being equal | 'Ceteris' = 'see-the-rest' frozen |
| Normative statement | Opinion, 'ought'/'should' | Normative = 'Norm', value judgement |
| Positive statement | Fact, testable | 'Positive' = 'Proven' with data |
| Productivity | Output per worker per hour | Think 'Pro-duct' – producing effectively |
| Division of labour | Breaking production into small tasks | Assembly line, each worker specialises |
| Economies of scale | Cost per unit falls as output rises | 'Bigger is cheaper per item' |
| Current account | Trade in goods, services, income, transfers | 'Current' flows like a river of money |
Practise by covering the 'Quick meaning' column and guessing from the trigger. This active recall strengthens neural pathways.
遮住“简义”栏，根据触发语猜测含义，这样的主动回忆能强化神经通路。
12. Exam Tactics for Definitions | 定义题考试技巧
WJEC frequently awards marks for accurate definitions in short-answer and essay questions. A perfect definition states the term, its category, and a distinguishing feature. For example: 'Opportunity cost is the value of the next best alternative forgone when a choice is made.' Avoid circular definitions (e.g., 'Scarcity is when things are scarce') and vague phrases.
WJEC 常在简答题和论文题中对准确定义给分。一个完美的定义要说明术语、它的类别和一个显著特征。例如：“机会成本是做出选择时放弃的次优选择的价值。”避免循环定义（如“稀缺就是东西很少”）和模糊用语。
Use the 'Define – Explain – Example' structure even in 2-mark questions: state the meaning, add a brief clarification, and link to a real-world instance. This demonstrates thorough understanding and often secures full marks.
即使在 2 分的题目里也采用“定义—解释—举例”结构：陈述含义，加上简短说明，并联系一个现实例子。这能展示透彻的理解，往往能拿到满分。
Memory hack: Before writing, think 'D.E.E.R.' – Define it, Explain its significance, give an Example, Relate to the question. Practise turning textbook definitions into your own words while keeping the formal structure.
记忆技巧：落笔前，想“DEER”——定义 (Define)、解释重要性 (Explain)、举例 (Example)、扣题 (Relate)。练习把课本定义用自己的话转换，同时保持正式结构。
Published by TutorHao | Economics Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图