📚 Year 10 SQA Economics: A Quick Guide to Memorising Key Terms | SQA Year 10 经济学术语速记指南
Mastering economics starts with mastering its language. This guide breaks down the essential terms for the SQA Year 10 Economics course into bite-sized explanations, paired with memory hooks that make revision fast and effective. You will not just read definitions - you will learn how to spot patterns, link ideas, and explain concepts clearly for exam success.
学好经济，首先要掌握它的语言。本指南将 SQA Year 10 经济课程的核心术语拆解成简明易懂的解释，再配上巧妙的记忆钩子，让复习既快又有效。你不仅是在读定义——更在学会发现规律、关联观点，并能在考试中清晰地解释概念。
1. Scarcity and the Basic Economic Problem | 稀缺性与基本经济问题
Scarcity is the central idea in economics: we have unlimited wants but only limited resources. Land, labour, capital, and enterprise are all finite, so we cannot produce everything everyone desires. This forces every society to answer three fundamental questions: what to produce, how to produce it, and for whom to produce.
稀缺性是经济学的核心概念：我们的欲望无限，但资源有限。土地、劳动力、资本和企业才能都是有限的，因此我们无法生产出所有人想要的一切。这就迫使每个社会必须回答三个基本问题：生产什么、如何生产以及为谁生产。
A quick memory trick: think of 'SCARCE' as 'So Come All Resources, Choices Everywhere'. This reminds you that when a resource is scarce, choices must be made. The basic economic problem is simply the tension between infinite needs and finite means.
一个速记窍门：把 'SCARCE' 想象成 '看到所有资源，处处需选择'。这提醒你，当资源稀缺时，就必须做出选择。基本经济问题其实就是无限需求与有限手段之间的矛盾。
2. Opportunity Cost | 机会成本
Opportunity cost is the value of the next best alternative you give up when making a decision. It is not simply the price you pay; it is the benefit lost from the option you did not choose. If a student spends an hour studying instead of earning £10 at a part-time job, the opportunity cost of studying is that £10.
机会成本是指你做出决定时所放弃的次优选择的价值。它不仅是你支付的价钱，更是你未选择的那个选项所带来的损失。如果一个学生花了一小时学习，而不是去做兼职赚10英镑，那么学习的机会成本就是这10英镑。
To lock this in, remember that 'opportunity knocks, but you can only open one door'. Every time you say yes to one activity, you say no to many others. SQA exam questions often ask you to identify and explain the opportunity cost in a scenario, so practise applying the concept to everyday decisions.
要牢记这个概念，可以想：'机会来敲门，但你只能打开一扇'。每次你对一项活动说‘好’，就等于对其他许多项说了‘不’。SQA 考试常要求你找出并解释情景中的机会成本，因此多练习将这一概念应用到日常决策中。
3. Factors of Production | 生产要素
The four factors of production are land, labour, capital, and enterprise. Land includes all natural resources like oil, forests, and farmland. Labour is the human effort—both physical and mental. Capital means man-made goods used to produce other goods, such as machinery and factories, while enterprise is the skill of taking risks and combining the other three factors to create a business.
四种生产要素是土地、劳动力、资本和企业才能。土地包括所有自然资源，如石油、森林和农田。劳动力是人的努力——包括体力和脑力。资本指用于生产其他商品的人造产品，如机器和工厂；而企业才能则是承担风险、把其他三种要素组合起来创造企业的能力。
A simple mnemonic is 'Let's Learn Cool Economics' – L for Land, L for Labour, C for Capital, and E for Enterprise. Always remember that capital in economics does not mean money; it refers to productive equipment. Money by itself is not a factor of production.
一个简单的助记法是 'LLCE'：Land 土地, Labour 劳动力, Capital 资本, Enterprise 企业才能。切记，经济学中的资本不是指金钱，而是生产设备。金钱本身并不是生产要素。
4. Demand and the Law of Demand | 需求与需求定律
Demand is the quantity of a good or service that consumers are willing and able to buy at various prices over a given period. The law of demand states that, all other things being equal, as the price of a good rises, the quantity demanded falls, and vice versa. This inverse relationship is shown by a downward-sloping demand curve.
需求是在一定时期内，消费者在不同价格水平上愿意并且能够购买的商品或服务的数量。需求定律指出，在其他条件不变的情况下，当商品价格上升时，需求量下降，反之亦然。这种反向关系表现为一条向下倾斜的需求曲线。
Use the sentence 'Price high, demand shy; price low, demand grow' to keep the law clear. 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 factors like income, tastes, or prices of related goods).
用'价格高，需求缩；价格低，需求涨'这句话来牢记这一定律。要注意区分沿需求曲线的移动（由商品自身价格变化引起）和需求曲线的平移（由收入、偏好或相关商品价格等因素引起）。
5. Supply and the Law of Supply | 供给与供给定律
Supply is the quantity of a good or service that producers are willing and able to offer for sale at different prices. The law of supply says that, ceteris paribus, as the price increases, the quantity supplied increases. Producers are motivated by higher profits, so the supply curve slopes upward.
供给是生产者在不同价格水平上愿意并且能够出售的商品或服务的数量。供给定律表明，在其他条件不变时，价格上升，供给量也上升。生产者受更高利润驱动，因此供给曲线向上倾斜。
Think 'Price climbs, supply shines'. Just as with demand, a change in the product's own price causes a movement along the supply curve, while changes in costs of production, technology, or taxes cause the whole curve to shift. Many SQA diagrams test your ability to show these shifts clearly.
记住这句话：'价格攀升，供给闪耀'。与需求一样，产品自身价格变化引起沿供给曲线的移动，而生产成本、技术或税收的变化则导致整条曲线平移。SQA 很多图表题都会考察你是否能清楚地画出这些平移。
6. Market Equilibrium and Price Mechanism | 市场均衡与价格机制
Market equilibrium occurs where the quantity demanded equals the quantity supplied. At this point, there is no surplus or shortage, and the market-clearing price is established. If the price is above equilibrium, excess supply pushes the price down; if below, excess demand pulls the price up.
市场均衡出现在需求量等于供给量之时。在这个点上，既无过剩也无短缺，市场出清价格得以形成。若价格高于均衡水平，超额供给会促使价格下降；若低于均衡，超额需求则推动价格上升。
The price mechanism describes how prices act as signals to allocate scarce resources. Rising prices signal producers to supply more and consumers to use less, while falling prices do the opposite. This 'invisible hand' coordinates decisions without central direction. Memorise the phrase 'Prices talk – producers walk'.
价格机制描述了价格如何充当信号来配置稀缺资源。价格上涨告诉生产者增加供给、消费者减少使用，价格下跌则起相反作用。这只'看不见的手'无需中央指令就能协调各方决策。记住这句话：'价格发令，生产者行动'。
7. Price Elasticity of Demand (PED) | 需求价格弹性
PED = %Δ Quantity Demanded ÷ %Δ Price
PED measures how responsive quantity demanded is to a change in price. If the value is greater than 1, demand is elastic, meaning consumers are very sensitive to price changes. A value less than 1 indicates inelastic demand, where quantity demanded changes only slightly when prices move. Unitary elasticity occurs when PED equals exactly 1.
PED 衡量需求量对价格变化的反应程度。数值大于1 时，需求富有弹性，意味着消费者对价格变化十分敏感。小于1 时，需求缺乏弹性，价格变动时需求量只发生微小变化。当 PED 恰好等于1 时，为单一弹性。
To remember the determinants, use the acronym 'SPLAT': Substitutes (more substitutes, more elastic), Percentage of income (expensive items tend to be elastic), Luxury or necessity (necessities are inelastic), Addictive or habit-forming (inelastic), Time (more time to adjust, more elastic). Practise interpreting PED values in exam contexts.
要记住决定因素，可以用缩写 'SPLAT'：替代品（替代品越多，弹性越大）、占收入比例（昂贵物品往往富有弹性）、奢侈品还是必需品（必需品缺乏弹性）、成瘾性或习惯性（缺乏弹性）、时间（调整时间越长，弹性越大）。多在考试情境下练习解读 PED 值。
8. Production Possibility Frontier (PPF) | 生产可能性边界
The PPF is a curve showing the maximum combinations of two goods an economy can produce using all available resources efficiently. Points on the curve represent full employment and productive efficiency. Points inside the curve show underutilised resources, while points outside are unattainable with current resources and technology.
生产可能性边界是一条曲线，显示一个经济体在充分利用所有可用资源时所能生产的两种商品的最大组合。曲线上的点代表充分就业和生产效率。曲线以内的点表示资源未充分利用，而曲线外的点在当前资源和科技条件下无法实现。
The PPF also illustrates opportunity cost and economic growth. Moving along the curve involves giving up one good to get more of the other. If the curve shifts outward, the economy has achieved growth through more resources or better technology. Visualising the PPF makes abstract concepts tangible.
PPF 还体现了机会成本与经济增长。沿着曲线移动意味着放弃一种商品以换取更多另一种。如果曲线向外平移，说明经济通过增加资源或改进技术实现了增长。把 PPF 画出来，能让抽象概念变得具体可感。
9. Market Structures | 市场结构
Market structure describes how a market is organised, based on the number of firms, type of product, and ease of entry. The main types are perfect competition, monopolistic competition, oligopoly, and monopoly. Each has distinct characteristics that influence pricing, output, and efficiency.
市场结构描述市场是如何组织的，依据企业数量、产品类型和进入壁垒等因素来划分。主要类型有完全竞争、垄断竞争、寡头垄断和完全垄断。每种结构都有独特特征，并影响定价、产量和效率。
| Market Structure | Number of Firms | Product Type | Entry Barriers |
|---|---|---|---|
| Perfect Competition | Many, very small | Identical (homogeneous) | None |
| Monopolistic Competition | Many, small | Differentiated | Low |
| Oligopoly | Few dominant firms | Differentiated or standardised | High |
| Monopoly | One single firm | Unique, no close substitutes | Very high or insurmountable |
A helpful comparison: perfect competition is like a farmer's market where many sellers offer identical potatoes, while a monopoly is like a local water company with no alternatives. Oligopoly is your mobile phone network market – just a handful of players with huge power.
一个有用的类比：完全竞争就像农贸市场，许多卖家卖同样的土豆；而垄断就像当地的供水公司，别无选择。寡头垄断好比手机网络市场——只有少数几个巨头，势力强大。
10. Macroeconomic Objectives and Indicators | 宏观经济目标与指标
Governments generally aim for four main macroeconomic objectives: economic growth, low unemployment, low and stable inflation, and a favourable balance of payments. Each is measured by a specific indicator: GDP for growth, the claimant count or Labour Force Survey for unemployment, the Consumer Price Index (CPI) for inflation, and the current account balance for trade.
政府通常追求四大宏观经济目标：经济增长、低失业率、低且稳定的通胀，以及良好的国际收支平衡。每个目标都有对应的衡量指标：GDP 衡量增长，失业救济申领人数或劳动力调查衡量失业，消费者价格指数（CPI）衡量通胀，而经常账户余额衡量贸易。
To recall these goals, use the phrase 'Great Big Markets Always Trade' – Growth, Jobs (Big employment), Moderate inflation, and favourable Trade balance. GDP stands for Gross Domestic Product, the total value of goods and services produced in a country in a year. If GDP rises over time, the economy is growing.
要记下这些目标，可以用一句话：'大市场总在交易'——增长（Great）、就业（Big）、温和通胀（Moderate）和贸易平衡（Trade）。GDP 是国内生产总值，指一国一年内生产的商品和服务总价值。如果 GDP 随时间增长，说明经济在增长。
11. Fiscal and Monetary Policy | 财政与货币政策
Fiscal policy involves government decisions on taxation and spending to influence the economy. Expansionary fiscal policy (cutting taxes or raising government spending) aims to boost demand during a recession, while contractionary policy cools an overheating economy. The budget balance – deficit or surplus – shows the gap between spending and revenue.
财政政策涉及政府通过税收和支出来影响经济的决策。扩张性财政政策（减税或增加政府支出）旨在衰退时期刺激需求，而紧缩性政策则为过热经济降温。预算余额——赤字或盈余——体现了支出与收入之间的差额。
Monetary policy is managed by the central bank (the Bank of England, for the UK) and uses interest rates and the money supply to keep inflation near the target, typically 2%. Lower interest rates encourage borrowing and spending; higher rates discourage them. Think 'M for Monetary, M for Money supply'.
货币政策由中央银行（英国为英格兰银行）管理，利用利率和货币供应量使通胀保持在目标水平附近，通常为2%。降低利率鼓励借贷和支出；提高利率则加以抑制。可以记住：'M 代表货币，也代表货币政策'。
The circular flow of income connects these policies: when the government spends or the central bank cuts rates, more money circulates. A key SQA skill is explaining the transmission mechanism linking policy tools to real economic outcomes.
收入循环流转将这些政策联系起来：政府支出或央行降息时，就会有更多资金流动。SQA 考察的一项关键能力是解释政策工具与实体经济结果之间的传导机制。
12. International Trade and Exchange Rates | 国际贸易与汇率
International trade lets countries specialise in goods where they have a comparative advantage, producing at a lower opportunity cost. Exports are goods sold abroad, imports are goods bought from foreign countries. The difference is the balance of trade, a major part of the current account.
国际贸易使各国能专门生产具有比较优势的商品，即以较低机会成本生产。出口是销往国外的商品，进口是从外国购买的商品。两者之差即为贸易差额，这是经常账户的主要部分。
Exchange rates determine how much one currency is worth in terms of another. A stronger pound makes imports cheaper but exports dearer, worsening the trade balance. A weaker pound boosts exports and makes imports pricier. The rate can be floating, fixed, or managed. Use 'SPICED' to remember: Strong Pound Imports Cheaper Exports Dearer.
汇率决定了一种货币能兑换多少另一种货币。英镑走强使进口更便宜但出口更昂贵，从而恶化贸易差额。英镑走弱则提振出口，同时让进口变得昂贵。汇率可以是浮动、固定或有管理的。用 'SPICED' 来记忆：Strong Pound Imports Cheaper Exports Dearer（英强进廉出贵）。
Globalisation and trade blocs such as the EU's single market affect these dynamics. Revision should focus on drawing and explaining shifts in currency demand and supply diagrams, a common SQA examination requirement.
全球化以及像欧盟单一市场这样的贸易集团会影响这些动态。复习时要重点练习绘制并解释货币需求与供给曲线的移动，这是 SQA 考试的常见要求。
Published by TutorHao | Economics Revision Series | aleveler.com
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