📚 Year 8 Edexcel Economics: Case Study Practice Exercises | Year 8 Edexcel 经济：案例分析实战演练
Case studies are a vital part of Year 8 Economics. They bring textbook theories to life and test your ability to apply concepts like scarcity, demand, supply, and opportunity cost to real-world situations. This article will guide you through practical exercises to build confidence for your Edexcel assessments.
案例分析是 Year 8 经济学的核心部分。它们让课本理论活起来，并检验你将稀缺性、需求、供给和机会成本等概念应用于现实场景的能力。本文将引导你通过实战演练，为你的 Edexcel 测评建立信心。
1. Why Case Studies Matter in Economics | 为什么案例分析在经济中重要
In your Edexcel Year 8 Economics course, you don’t just learn isolated facts. You need to show that you can think like an economist. Case studies present a short story about a real or imaginary scenario, and then ask you to explain what is happening using economic reasoning. This mirrors how economists work in the real world, evaluating data, identifying trade-offs, and making recommendations.
在 Edexcel Year 8 经济课程中，你不仅仅学习孤立的事实。你需要展示你能像经济学家一样思考。案例分析呈现一个关于真实或想象情景的小故事，然后要求你用经济推理解释正在发生的事情。这反映了经济学家在现实世界中的工作方式：评估数据、识别权衡取舍并提出建议。
Regular practice with case studies sharpens your analytical skills and deepens your understanding of key concepts. It also prepares you for the style of questions that frequently appear in topic tests and end-of-year assessments. The more you practise, the faster you will spot the underlying economic problem and articulate a well-supported answer.
定期进行案例分析练习可以磨炼你的分析能力，加深你对关键概念的理解。它也能让你为专题测试和年末评估中常见的问题形式做好准备。你练习得越多，就能越快发现潜在的经济问题，并给出有充分支撑的答案。
2. Deconstructing a Case Study Step-by-Step | 逐步拆解案例分析
A clear method helps you tackle any case without feeling overwhelmed. Start by reading the text twice. The first time, simply get the gist of the story. The second time, underline or highlight economic keywords such as ‘price increase’, ‘limited budget’, ‘fewer suppliers’, or ‘government subsidy’. These terms signal which concepts the exam is likely testing.
一个清晰的方法可以帮助你从容地处理任何案例。首先阅读文本两遍。第一遍，只抓住故事的大意。第二遍，划出或高亮经济关键词，比如“价格上涨”、“预算有限”、“供应商减少”或“政府补贴”。这些术语表明考试可能在考查哪些概念。
Next, identify the core economic problem. Is it about scarcity and the need to make a choice? Is it about how a change in demand affects the market price? Once you have pinned down the problem, decide which economic tools to apply. For example, if the case mentions a limited number of concert tickets and thousands of fans wanting them, the tools are scarcity and the price mechanism.
下一步，识别核心的经济问题。它是关于稀缺性和做出选择的需要吗？还是关于需求变化如何影响市场价格？一旦你明确了问题，就决定运用哪些经济工具。例如，如果案例提到音乐会门票数量有限且成千上万的粉丝想要，那么工具就是稀缺性和价格机制。
Now form your answer. Always define the key term you are using, then link it directly to the evidence in the case. Finally, consider the consequences or trade-offs. A strong answer will also recognise that economic decisions often create winners and losers, showing a deeper level of evaluation.
现在组织你的答案。始终先定义你正在使用的关键术语，然后将其直接与案例中的证据联系起来。最后，考虑后果或权衡取舍。一个有力的答案还会认识到经济决策往往会产生赢家和输家，从而展示出更深层次的评估能力。
3. Common Economic Themes in Year 8 Case Studies | Year 8 案例常见经济主题
Edexcel Year 8 Economics revolves around a handful of powerful ideas. Almost every case study you encounter will touch on at least one of these: the basic economic problem of unlimited wants and limited resources; opportunity cost as the next best alternative forgone; the role of consumers, producers, and the government; and the way markets work through demand, supply, and price determination.
Edexcel Year 8 经济围绕着一系列强有力的思想。你遇到的几乎每一个案例分析都会触及其中至少一个：无限欲望与有限资源的基本经济问题；作为所放弃的次优选择的机会成本；消费者、生产者和政府的角色；以及市场通过需求、供给和价格决定来运作的方式。
Other recurring themes include the difference between needs and wants, factors that shift demand (such as changes in income, tastes, or the price of substitutes), and the impact of competition on prices. You may also see simple examples of public goods or merit goods, where the government steps in to provide things like parks or vaccinations. Becoming familiar with these themes allows you to quickly categorise any new case study.
其他反复出现的主题包括需要和欲望之间的区别、导致需求变动的因素（如收入、品味或替代品价格的变化），以及竞争对价格的影响。你还可能看到关于公共品或优值品的简单例子，政府会介入提供公园或疫苗接种。熟悉这些主题能让你迅速对任何新案例进行分类。
4. Mastering Key Terms for Analysis | 掌握分析的关键术语
Economic analysis demands precise language. When you write about a case, using the correct terminology instantly lifts your answer. Below is a quick-reference table of essential terms for Year 8, along with simple definitions. Keep these in your revision toolkit.
经济分析需要精确的语言。当你撰写案例答案时，使用正确的术语能立即提升答案质量。以下是 Year 8 基本术语的快速参考表，附有简单定义。请将它们保留在你的复习工具包中。
| English Term | 中文术语 | Simple Definition | 简单定义 |
|---|---|---|
| Scarcity | 稀缺性 | Limited resources to meet unlimited wants | 有限的资源无法满足无限的欲望 |
| Opportunity Cost | 机会成本 | The next best alternative given up when a choice is made | 做出选择时放弃的次优选项 |
| Demand | 需求 | The quantity of a good that consumers are willing and able to buy at a given price | 在一定价格下消费者愿意且能够购买的商品数量 |
| Supply | 供给 | The quantity of a good that producers are willing and able to sell at a given price | 在一定价格下生产者愿意且能够出售的商品数量 |
| Equilibrium | 均衡 | The price where quantity demanded equals quantity supplied | 需求量等于供给量时的价格 |
| Incentive | 激励 | A factor that motivates a person to act or make a choice | 激励一个人采取行动或做出选择的因素 |
Practise using these terms in full sentences. Instead of writing ‘the price went up so people bought less’, you can write ‘According to the law of demand, the increase in price led to a contraction in quantity demanded’. This precision is what examiners look for.
练习用完整的句子使用这些术语。不要写“价格上涨了所以人们买得少了”，你可以写“根据需求定律，价格上涨导致了需求量的收缩”。这种精确性正是考官所寻找的。
5. Reading Between the Lines: Identifying Stakeholders | 读懂言外之意：识别利益相关者
Every economic decision affects different groups of people, called stakeholders. In a case study about a new shopping centre being built, stakeholders might include local residents, shop owners, construction workers, the local council, and future shoppers. Good analysis maps out who gains and who loses.
每一个经济决策都会影响不同的人群，即利益相关者。在一个关于新建购物中心的案例中，利益相关者可能包括当地居民、店主、建筑工人、地方议会和未来的购物者。好的分析会梳理出谁受益、谁受损。
Start by listing all individuals or groups mentioned in the text, plus any that are implied. Then ask yourself: what are their interests? A supermarket chain might want to maximise sales, while a small independent bakery might fear losing customers. Using stakeholder analysis shows you can go beyond the surface of the text and think more broadly.
首先列出文中提到的所有个人或群体，以及任何隐含的群体。然后问自己：他们的利益是什么？一家连锁超市可能想要最大化销售，而一家小型独立面包店可能担心失去顾客。运用利益相关者分析表明你能超越文本表面并进行更广泛的思考。
6. Applying Demand and Supply to Real Scenarios | 将供需应用于实际情景
The model of demand and supply is the economist’s most powerful tool. When a case study describes a change in the market, try to sort the change into either a demand-side factor or a supply-side factor. A hot summer increases the demand for ice cream, shifting the demand curve to the right, which raises both the equilibrium price and quantity.
需求与供给模型是经济学家最强大的工具。当一个案例描述市场的变化时，试着将该变化归类为需求侧因素或供给侧因素。炎热的夏天增加了对冰淇淋的需求，使需求曲线向右移动，从而提高了均衡价格和均衡数量。
If a storm destroys half the strawberry crop, the supply of strawberries shifts to the left, causing the price to rise and the quantity sold to fall. Always describe the mechanism step by step: identify the shock, state which curve shifts and in which direction, and then explain the new equilibrium. This structured approach earns high marks.
如果一场暴风雨摧毁了一半的草莓收成，草莓的供给向左移动，导致价格上涨和销售量下降。始终一步一步地描述机制：识别冲击，说明哪条曲线移动以及向哪个方向移动，然后解释新的均衡。这种结构化的方法能赢得高分。
You do not need to draw perfect diagrams every time, but sketching a simple graph with labelled axes (Price and Quantity) and arrows showing the direction of shift is excellent exam practice. Even in a written answer, you can describe the movement using phrases like ‘upwards pressure on price’ or ‘excess demand at the original price’.
你不需要每次都画出完美的图表，但绘制一个带有标记轴线（价格和数量）和显示移动方向的箭头的简单图形是极好的考试练习。即便在书面答案中，你也可以使用诸如“对价格的上行压力”或“在原价格处存在超额需求”这样的短语来描述变动。
7. Opportunity Cost in Everyday Choices | 日常选择中的机会成本
Opportunity cost appears in nearly every Year 8 case study, because choice is everywhere. Imagine a case where a student has £20 and must decide between buying a new video game or going to the cinema. The opportunity cost of choosing the game is the enjoyment and experience of the cinema trip forgone.
机会成本几乎出现在每一个 Year 8 案例中，因为选择无处不在。想象一个案例：一个学生有 20 英镑，必须在购买一款新电子游戏和去看电影之间做出决定。选择游戏的的机会成本就是所放弃的电影之旅带来的享受和体验。
When answering, never just say ‘the opportunity cost is the other option’. Always explicitly state the next best alternative sacrificed. For example, ‘The government chose to spend £10 million on a new hospital; the opportunity cost is the new school that could have been built instead.’ This clarity demonstrates complete understanding.
回答时，永远不要仅说“机会成本就是另一个选择”。总是明确陈述所牺牲的次优选项。例如，“政府选择花费 1000 万英镑建造一所新医院；机会成本是本可以建造的那所新学校。”这种清晰性展示出完全的理解。
8. Using Diagrams to Support Your Answers | 使用图表辅助答案
Even at Year 8, a well-labelled diagram can turn a good answer into an excellent one. For a case about rising train fares, you could draw a simple demand and supply diagram for rail travel. Label the vertical axis ‘Price’ and the horizontal axis ‘Quantity’. Draw a downward-sloping demand curve and an upward-sloping supply curve, with equilibrium marked.
即使在 Year 8，一个标注清晰的图表也能将一个好的答案变成优秀的答案。对于一个关于火车票价上涨的案例，你可以画一张简单的铁路旅行供需图。纵轴标注“价格”，横轴标注“数量”。画一条向下倾斜的需求曲线和一条向上倾斜的供给曲线，并标出均衡点。
If the case says the train company increases ticket prices, show this by moving up along the demand curve—not shifting it. If a new competitor enters the market, shift the supply curve to the right. Always add a short sentence below your diagram explaining what the graph illustrates, such as ‘Diagram showing how an increase in supply reduces the market price.’
如果案例说铁路公司提高了票价，就沿着需求曲线向上移动来表示——而不是移动需求曲线。如果一个新的竞争者进入市场，就将供给曲线向右移动。始终在你的图表下面添加一个短句，解释图表演示了什么，比如“图表显示了供给增加如何降低了市场价格”。
9. Practice Case Study 1: The School Canteen Dilemma | 实战案例 1：学校食堂困境
Read the following scenario carefully:
请仔细阅读以下情景：
Greenwood School has a single canteen. The canteen manager raises the price of a burger meal from £3.50 to £4.20. Over the next two weeks, the number of burger meals sold falls from 150 per day to 110. At the same time, the canteen introduces a new salad wrap priced at £2.80, but only 20 are sold daily. Many students say they only have £4.00 to spend each day and cannot afford both the burger and a drink.
格林伍德学校有一间食堂。食堂经理将一份汉堡套餐的价格从 3.50 英镑提高到 4.20 英镑。在接下来的两周里，每天售出的汉堡套餐从 150 份下降到 110 份。同时，食堂推出了一款售价 2.80 英镑的新款沙拉卷，但每天只卖出 20 份。许多学生说他们每天只有 4.00 英镑可花，买不起汉堡和饮料。
Typical questions and analysis approach:
典型问题与分析方法：
Question: Explain one reason why the quantity of burger meals demanded fell. Think about the law of demand and the students’ limited budget. A £0.70 increase is significant when daily spending is capped at £4.00. The burger meal now takes up a larger share of the budget, making it less affordable. Always use the phrase ‘contraction in quantity demanded’ to show precise knowledge.
问题：解释汉堡套餐需求量下降的一个原因。思考需求定律和学生有限的预算。当每日支出上限为 4.00 英镑时，0.70 英镑的涨幅是显著的。汉堡套餐现在占据了预算的更大份额，使其负担性降低。始终使用“需求量收缩”这一短语来展示精确的知识。
Question: Calculate the opportunity cost of buying the burger meal instead of the salad wrap. The opportunity cost is not just the price difference; it is what you give up. If a student buys the burger, they sacrifice the salad wrap and £1.40 (the difference between £4.20 and £2.80) which could have been used for another item. So the full opportunity cost includes the wrap and the lost purchasing power.
问题：计算购买汉堡套餐而不是沙拉卷的机会成本。机会成本不仅仅是价格的差额；而是你放弃了什么。如果一个学生购买汉堡，他们就牺牲了沙拉卷和 1.40 英镑（4.20 英镑与 2.80 英镑的差额），而这差额本可以用来购买其他物品。因此，完全的机会成本包括沙拉卷和失去的购买力。
Always link your reasoning to the evidence in the case. For example, you might suggest that the salad wrap is a substitute, but because it is new and unfamiliar, only a few students switch. This opens the door to discussing consumer tastes and effective marketing.
始终将你的推理与案例中的证据联系起来。例如，你可能会提出沙拉卷是一种替代品，但因为它是新的且不熟悉，只有少数学生转换选择。这为进一步讨论消费者品味和有效的市场营销打开了大门。
10. Practice Case Study 2: A New Ice Cream Shop Opens | 实战案例 2：新冰淇淋店开张
Scenario:
情景：
The seaside town of Bayton has had one ice cream parlour, ‘Scoops’, for many years. During summer, customers often queue for 15 minutes to buy a scoop. This year, a second ice cream seller, ‘Frosty’s’, opens on the same promenade. Within a month, the average price of a single scoop falls from £2.20 to £1.60. Scoops reports selling 30% fewer ice creams than last summer.
海滨小镇贝顿多年来只有一家冰淇淋店“Scoops”。夏天，顾客们常常要排队 15 分钟才能买到一球冰淇淋。今年，第二家冰淇淋店“Frosty’s”在同一条海滨步道开业。一个月内，一球冰淇淋的平均价格从 2.20 英镑降至 1.60 英镑。Scoops 报告称，其冰淇淋销量比去年夏天减少了 30%。
Analysis approach: First, identify the supply shock. The entrance of Frosty’s increases the total supply of ice cream in Bayton. Using a supply and demand framework, the supply curve shifts to the right. At the original price of £2.20, there is now a surplus, putting downward pressure on price until the new equilibrium is reached at £1.60.
分析方法：首先，识别供给冲击。Frosty’s 的进入增加了贝顿冰淇淋的总供给。运用供需框架，供给曲线向右移动。在 2.20 英镑的原价格处，现在出现了过剩，对价格施加了下行压力，直到在 1.60 英镑处达到新的均衡。
Consider also the effect on Scoops’ demand. Because there is a close substitute available, the demand for Scoops’ ice cream decreases (shifts left). This double shift explains both the lower price and the reduced sales for Scoops. When writing, distinguish clearly between a movement along the curve and a shift of the whole curve. This analytical distinction impresses exam readers.
还要考虑对 Scoops 需求的影响。因为有一个近似的替代品出现，对 Scoops 冰淇淋的需求减少（需求曲线向左移动）。这种双重移动解释了 Scoops 价格下降和销量减少的现象。写作时，要清楚地区分“沿着曲线的移动”与“整条曲线的移动”。这种分析上的区分会给阅卷老师留下深刻印象。
Don’t forget stakeholders: consumers gain from lower prices and more choice, while the original producer faces tougher competition. You could even mention the opportunity cost for Frosty’s of opening in Bayton rather than another town.
不要忘记利益相关者：消费者因更低的价格和更多的选择而获益，而原有的生产者则面临着更激烈的竞争。你甚至可以提及 Frosty’s 在贝顿而非另一个城镇开店的机会成本。
11. Common Mistakes and How to Avoid Them | 常见错误及避免方法
One of the biggest errors is simply retelling the story without any economic analysis. The instruction ‘Explain’ or ‘Discuss’ is a signal to apply concepts. After mentioning a fact from the case, always follow it with ‘this means that…’ or ‘because…’ to connect it to a theory. For instance, do not just state that prices fell; explain that this resulted from an increase in supply relative to demand.
最大的错误之一就是仅仅复述故事，而没有任何经济分析。指令词“解释”或“讨论”是一个应用概念的信号。在提及案例中的事实后，总是接着用“这意味着……”或“因为……”将其与理论联系起来。例如，不要只说价格下降了；要解释这是由供给相对于需求增加所导致的。
Another frequent pitfall is confusing demand with quantity demanded, or supply with quantity supplied. Remember: a change in the good’s own price causes a movement along the curve. A change in any other factor (income, number of sellers, technology) causes the whole curve to shift. Mislabeling these loses marks and muddles your explanation.
另一个常见的陷阱是混淆需求与需求量，或供给与供给量。记住：商品自身价格的变化引起的是沿着曲线的移动。任何其他因素（收入、卖家数量、技术）的变化则导致整条曲线移动。错误地贴上标签会失分，并使你的解释混乱。
Students also sometimes ignore the word ‘opportunity cost’ when a choice is clearly involved. Make it a habit to spot choices and calculate what is sacrificed. Finally, avoid vague language like ‘the economy gets better’ or ‘people are sad’; use precise economic vocabulary. A checklist next to your exam paper can help you remember to include key terms.
学生们有时也会在明显涉及一个选择时忽略“机会成本”这个词。养成发现选择的习惯，并计算牺牲了什么。最后，避免模糊的语言，如“经济好转了”或“人们难过了”；使用精确的经济学词汇。在试卷旁放一份检查清单可以帮助你记住包含关键术语。
12. Final Tips for Exam Success | 考试成功的最后建议
Timing is crucial. Allocate about one minute per mark. If a case study question is worth 6 marks, you should spend roughly 6 minutes on it. Read the case and the questions before writing anything, so you know exactly what evidence to search for. Underline the command words: ‘Identify’, ‘Explain’, ‘Calculate’, ‘Discuss’. Each demands a different response structure. ‘Discuss’ requires a balanced argument with a conclusion; ‘Explain’ needs a step-by-step causal chain.
时间规划至关重要。大约每 1 分用时一分钟。如果一个案例分析问题值 6 分，你应该大约花 6 分钟。先阅读案例和问题，再动笔，这样你就能确切地知道要寻找什么证据。划出指令词：“识别”、“解释”、“计算”、“讨论”。每个指令都需要不同的回答结构。“讨论”需要平衡的论证并得出结论；“解释”需要一步步的因果链。
When you practise, write full answers under timed conditions, then compare them with model answers or ask your teacher for feedback. Keep a log of the mistakes you commonly make—for example, forgetting to label axes on diagrams, or not naming the stakeholder—and review this log before each test. Economics is not about memorising stories; it is about learning a way of thinking. The more case studies you attempt, the more natural that thinking becomes.
练习时，在限时条件下写出完整的答案，然后与标准答案进行比较，或向老师寻求反馈。记录下你常犯的错误——例如，忘记在图表上标注轴线
Published by TutorHao | Year 8 Economics Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导