📚 Vocabulary & Terminology Quick-Memorisation Guide for Year 8 CAIE Economics | Year 8 CAIE 经济：词汇术语速记指南
Mastering the vocabulary of Economics is the first and most powerful step towards thinking like an economist. This guide breaks down the essential terms you will encounter in the Year 8 CAIE course and pairs each one with simple explanations and memory tricks. When you connect a term to a story, an image or a word pattern, it sticks in your mind far more effectively than rote memorisation ever could. Let’s dive into the core ideas that will build your economic vocabulary brick by brick.
掌握经济学词汇是像经济学家一样思考的第一步，也是最重要的一步。本指南将 Year 8 CAIE 课程中的核心术语拆解开来，为每一个术语配上简单的解释和记忆窍门。当你把一个术语与故事、图像或词语模式联系起来时，它在大脑中留下的印象远比死记硬背来得深刻。让我们一起扎进这些核心概念，一块砖一块砖地搭建你的经济学词汇库。
1. Scarcity and Choice | 稀缺性与选择
Scarcity describes the basic economic problem: we have limited resources but unlimited wants. The word itself sounds like 'scarce city' – imagine a city where everything is in short supply and you will never forget that scarcity means not having enough of something to go around.
稀缺性描绘了最基本的经济问题：资源有限，而欲望无穷。这个词本身听上去就像"稀缺的城市"——想象一座样样都紧缺的城市，你就会牢牢记着稀缺意味着某样东西不够分配。
Unlimited wants refer to the never‑ending desire people have for goods and services. Picture a birthday list that grows longer every day; no matter how many gifts you receive, you always want something more. That is the engine of economic choice.
无限欲望指的是人们对商品和服务永无止境的渴求。想象一张每天都在变长的生日愿望清单；不论你已经收到了多少礼物，始终还想再要些别的。这就是驱动经济选择的引擎。
Choice is the act of selecting among alternatives because scarcity forces us to pick one thing over another. Remember the school canteen queue – you only have enough pocket money for either a slice of pizza or a bowl of noodles, so you must choose. Every choice involves a trade‑off.
选择是在不同选项之间做出挑选的行为，因为稀缺迫使我们只能选其一，放弃其余。记得学校食堂的排队情景吗——口袋里的零花钱只够买一块比萨或一碗面，你必须做出选择。每一次选择都包含一种权衡。
Resources (also called factors of production) are the inputs used to make goods and services. Think of baking a cake: you need flour, sugar, eggs (land), a mixer and oven (capital), the baker’s work (labour) and the recipe idea (enterprise). Without resources, nothing can be produced.
资源（也称生产要素）是用来制造商品和服务的投入。想象烤一个蛋糕：你需要面粉、糖、鸡蛋（土地），搅拌机和烤箱（资本），烘焙者的劳动（劳动力），以及配方的创意（企业）。没有资源，就什么也生产不出来。
2. Factors of Production | 生产要素
Land covers all natural resources – soil, minerals, water, forests and even the space where a factory stands. A memory trick: 'Land' links to 'landscape'. Everything that comes from nature falls under this heading, so think of a farmer’s field giving wheat.
土地涵盖所有自然资源——土壤、矿产、水、森林，甚至工厂所在的空间。记忆窍门："土地"联系着"大地风景"。凡是自然出产的东西都归在这一类下，想想农田里长出小麦的画面。
Labour is the human effort, both physical and mental, used in production. Recall the phrase 'labour of love' – any work that people do, from a teacher marking homework to a mechanic fixing an engine, is labour. The size and skill of the workforce affect a country’s output.
劳动力是生产中投入的人类体力和脑力劳动。回想一下"爱的劳动"这个说法——任何人的工作，从老师批改作业到技工修理引擎，都属于劳动力。劳动力的规模与技能水平直接影响一个国家的产出。
Capital is any man‑made tool, machine or building used to produce other goods and services. Think of 'capital' as the kit that helps you work better – it is not money in economics. A tractor on a farm and a computer in an office are both examples of capital.
资本指任何用于生产其他商品和服务的、人造的工具、机器或建筑。在经济学里，"资本"是助你更好工作的装备，而非金钱。农场里的拖拉机和办公室里的电脑都属于资本。
Enterprise (or entrepreneurship) is the skill of bringing land, labour and capital together to produce goods and services, often taking risks. The person who spots a gap in the market and launches a new business is the entrepreneur. Picture a start‑up founder as 'the glue' that combines all the other factors.
企业（或企业家精神）是把土地、劳动力和资本组合起来，生产商品和服务的技能，往往伴随着风险。那个发现市场空白并创办新业务的人就是企业家。可以把创业者想象为"胶水"，将其他所有要素粘合在一起。
3. Opportunity Cost | 机会成本
Opportunity cost is the value of the next best alternative that you give up when a choice is made. The key phrase is 'next best' – it does not include all the things you could have done, only the one most valued option you sacrificed. For example, if you spend an hour playing video games, the opportunity cost might be the hour of revision you could have done.
机会成本是在做出选择时，你所放弃的次优选项的价值。关键词是"次优"——它不包括所有你本来可以做的事情，只指被你舍弃的那项最有价值的选项。例如，如果你花一小时打游戏，机会成本或许就是那本来可以复习的一小时。
To remember this term, tell yourself 'every opportunity comes at a cost'. When your parents choose to take a holiday instead of redecorating the house, the opportunity cost is the fresh new living room they will not have that year. Opportunity cost reminds us that nothing is truly free.
要记住这个术语，告诉自己"每一个机会都伴随成本"。当你父母选择去度假而不是装修房子时，机会成本就是他们那一年将无法拥有的焕然一新的客厅。机会成本提醒我们，天下没有真正免费的午餐。
4. Economic Systems | 经济制度
Market economy is a system where decisions about what, how and for whom to produce are made by private individuals and firms through the price mechanism. Think of a giant flea market where buyers and sellers haggle freely; the government stays in the background and mainly sets the rules of the game.
市场经济是这样一种制度：关于生产什么、如何生产和为谁生产的决策由私人个体和企业通过价格机制做出。想象一个巨大的跳蚤市场，买卖双方自由讨价还价；政府退居幕后，主要负责设定游戏规则。
Planned economy (or command economy) is the opposite: the government owns resources and makes all major economic decisions. Picture a school where the headteacher decides every single activity – when you eat, what you wear and which subjects you study. Such an economy often struggles to respond quickly to people’s changing wants.
计划经济（或称命令经济）恰恰相反：政府拥有资源并做出所有重大经济决策。想象一所由校长决定每个细节的学校——何时吃饭、穿什么、学哪些科目。这样的经济往往难以迅速对人们不断变化的需求做出反应。
Mixed economy is the realistic blend found in most countries today, where both market forces and government intervention coexist. The government might provide schools and police while private firms produce smartphones and sneakers. A mixed economy tries to balance freedom and equality.
混合经济是当今大多数国家存在的真实组合体，市场力量与政府干预并存。政府可能提供学校和警务，而私人企业生产智能手机和运动鞋。混合经济试图在自由和平等之间取得平衡。
5. Markets and the Price Mechanism | 市场与价格机制
A market is any place or situation where buyers and sellers meet to exchange goods, services or resources. A market does not need to be a physical location – an online gaming marketplace where players trade virtual swords is just as real a market as a fruit stall. Wherever exchange happens, a market exists.
市场是买卖双方聚集在一起交换商品、服务或资源的任何地点或情境。市场不一定是一个实体的地方——游戏玩家交易虚拟宝剑的在线市场，和水果摊一样是真实的市场。只要有交换发生，就有市场存在。
The price mechanism (or 'invisible hand') describes how prices adjust to balance demand and supply without anyone giving orders. When a new video game becomes wildly popular, its price may rise, encouraging producers to supply more copies. Prices act as signals and incentives.
价格机制（或称"看不见的手"）描述的是价格如何自动调整以达到供需平衡，无需任何人下达指令。当一款新电子游戏火爆时，其价格可能会上涨，促使生产者供应更多拷贝。价格发挥着信号和激励的作用。
Equilibrium price is the price where the quantity demanded equals the quantity supplied. Imagine a seesaw that is perfectly level; buyers are willing to purchase exactly the amount sellers are willing to provide at that price. When demand or supply shifts, the seesaw tips and the price moves to a new equilibrium.
均衡价格是需求量恰好等于供给量的价格。想象一个完全平衡的跷跷板；在这个价格下，买方愿意购买的数量正好等于卖方愿意提供的数量。当需求或供给发生变化，跷跷板倾斜，价格便会移向新的均衡点。
6. Demand and Supply | 需求与供给
Demand is the quantity of a good or service that consumers are willing and able to buy at various prices over a period of time. The law of demand states that, other things being equal, when the price falls, the quantity demanded rises. A memory hack: 'De‑mand' sounds like 'the man demands lower prices', so as price drops, demand goes up.
需求是指在一定时期内，消费者在不同价格水平愿意且能够购买的商品或服务数量。需求定律指出，在其他条件不变时，价格下降，需求量上升。记忆窍门："需求"就像买家索要更低的价格一样，价格越低，买得越多。
Supply is the quantity of a good or service that producers are willing and able to offer for sale at various prices. The law of supply tells us that, ceteris paribus, as price rises, the quantity supplied increases. Picture a lemonade stand on a hot day: a higher price per cup encourages you to squeeze more lemons.
供给是生产者在不同价格水平愿意且能够出售的商品或服务数量。供给定律告诉我们，其他条件不变时，价格上升，供给量增加。想象一个炎热天气下的柠檬水摊位：每杯能卖更高价，你就会愿意多榨些柠檬。
Effective demand is not just wanting something; it is wanting backed by the ability to pay. You might desire a luxury sports car, but without the money, it remains a 'wish', not effective demand. Economic demand must be both desired and affordable.
有效需求不单是想要某样东西，而是有支付能力做后盾的想要。你可能渴望一辆豪华跑车，但如果没有钱，那只是一个"愿望"，而非有效需求。经济上的需求必须既想买、又买得起。
7. Money and Banking | 货币与银行
Money serves four key functions: medium of exchange, unit of account, store of value and standard of deferred payment. To recall these, use the acronym 'MUSt Be Money': Medium of exchange, Unit of account, Store of value, deferred payment. Without money, we would have to barter, which requires a double coincidence of wants – a highly inefficient process.
货币履行四项关键职能：交换媒介、计价单位、价值储藏和延期支付标准。可以用首字母记忆法"MUSt Be Money"来记住：交换媒介 (Medium)、计价单位 (Unit)、价值储藏 (Store)、延期支付 (deferred payment)。没有货币，我们就只能物物交换，这要求存在"需要偶合"，效率极低。
Commercial banks are financial institutions that accept deposits, make loans and provide payment services to the public. Think of them as safe boxes that also lend out bicycles – they keep your savings safe and lend to others, earning interest as profit. HSBC and Barclays are examples.
商业银行是接受存款、发放贷款并向公众提供支付服务的金融机构。可以把它们想象为安全箱，同时也出租自行车——既保管你的储蓄，又借给他人，赚取利息作为利润。汇丰银行和巴克莱银行就是例子。
A central bank is the government’s bank, controlling the nation’s money supply and overseeing the banking system. It does not deal with ordinary savers like us; instead it sets interest rates and prints banknotes. The Bank of England and the US Federal Reserve are central banks.
中央银行是政府的银行，控制着国家的货币供应并监管银行体系。它不跟我们普通储户打交道；而是设定利率、印制钞票。英格兰银行和美国联邦储备系统都属于中央银行。
8. Personal Finance Basics | 个人理财基础
A budget is a plan of expected income and spending over a period of time. It helps you live within your means, just like a fitness plan helps you stay healthy. Recording pocket money inflows and snack outflows can be your first step in budgeting.
预算是在一段时期内的预期收入与消费计划。它帮助你量入为出，就像健身计划帮助保持健康一样。记下零花钱的收入和零食的支出，可以作为你预算的第一步。
Income is the flow of money received by a person or household, often from work, investments or benefits. The phrase 'money coming IN' captures the idea. Your main source of income might be your weekly allowance, while adults earn wages and salaries.
收入是个人或家庭获得的一笔钱款流入，通常来自工作、投资或福利。"收入"就是钱"进来"了。你的主要收入来源也许是每周的零用钱，而成年人赚取的是工资和薪水。
Expenditure (or spending) is the outgoings on goods and services. Think of it as 'exit door' money – whatever leaves your wallet. Needs such as bus fares are essential expenditure, while cinema tickets are often discretionary spending.
支出（或花销）是用于购买商品和服务的开支。可以把它看作"走出门外"的钱——从钱包里流出去的任何款项。公交车费这类"需要"属于必要支出，而电影票通常属于非必需支出。
Saving is the portion of income not spent, often stored in a bank account for future use. A simple rule of thumb is 'pay yourself first' – put aside a small amount before you start spending. Even putting coins in a jar builds the saving habit.
储蓄是收入中没有被花掉的部分，常常存入银行账户供未来使用。一条简单的经验法则是"先支付给自己"——开始花钱之前，先存下一点。即便只是把硬币投进罐子里，也能养成储蓄的习惯。
9. International Trade | 国际贸易
Imports are goods and services bought from other countries. Picture your favourite tropical fruit in winter – it has been imported from a warmer climate. Countries import items that are cheaper or of better quality from abroad, or simply unavailable locally.
进口是从其他国家购买的商品和服务。想象你在冬天吃到的最爱热带水果——那是从气候温暖的地方进口而来的。各国进口那些国外较便宜、质量较优或本地无法生产的产品。
Exports are goods and services sold to other countries. A country specialising in high‑quality cars or technology will export them to earn foreign currency. Remember 'exit' – exports exit the country. Together, imports and exports make up trade flows.
出口是向其他国家出售的商品和服务。一个擅长制造高品质汽车或科技产品的国家，会通过出口它们来赚取外汇。记住"出"——出口就是走出国门。进口与出口共同构成贸易流动。
Comparative advantage occurs when a country can produce a good at a lower opportunity cost than another country. It is not about being the absolute best, but about giving up the least. This is why nations trade: both can benefit by specialising in what they do relatively better.
比较优势发生在一国能以低于另一国的机会成本生产某种商品时。这并非要成为绝对最强，而是所放弃的最少。这就是各国进行贸易的原因：双方都可以通过专精于自己相对更擅长的事情而获益。
10. Production and Cost Terminology | 生产与成本术语
Productivity measures output per unit of input, such as output per worker per hour. If a baker produces 50 loaves an hour today and 60 loaves tomorrow using the same resources, productivity has risen. Higher productivity often leads to lower costs and higher living standards.
生产率衡量每单位投入的产出量，例如每个工人每小时的产出。如果一名面包师今天每小时生产50条面包，明天用同样资源生产出60条，生产率就提高了。生产率的提高通常导致成本降低和生活水平提升。
Fixed costs are expenses that do not change with the level of output, such as rent or insurance. The clue is in the name: the bill stays 'fixed' whether you produce 10 units or 10,000 units. These must be paid even if production stops temporarily.
固定成本是不随产出水平变动的开支，例如租金或保险。名称本身就给出了提示：无论你生产10件还是10 000件，账单都"固定"不变。即便暂时停产，这些费用仍需支付。
Variable costs change directly with output – raw materials, packaging and piece‑rate wages are typical examples. When a pizzeria makes more pizzas, it buys more cheese and flour. Variable costs rise and fall as production climbs and dives.
可变成本直接随产出变化——原材料、包装和计件工资都是典型例子。当比萨店制作更多比萨时，就要购买更多奶酪和面粉。可变成本随着生产的增减而起落。
Total cost is the sum of all fixed and variable costs at a given level of output. A simple formula (using words, not maths symbols) is Total Cost equals Fixed Cost plus Variable Cost. This figure helps a business determine whether it can operate profitably.
总成本是在特定产出水平下所有固定成本和可变成本的总和。一个简单的词语公式是：总成本等于固定成本加可变成本。企业借助这个数字判断能否盈利。
Published by TutorHao | Economics Revision Series | aleveler.com
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