📚 Year 11 WJEC Economics: Case Study Practice | WJEC 11年级经济：案例分析实战演练
Case study questions are a core component of the WJEC GCSE Economics examination, requiring you to apply theoretical knowledge to real-world scenarios. Mastering this skill is essential for achieving top marks, as it tests not only your understanding of economic concepts but also your ability to analyse data, evaluate arguments, and communicate effectively under timed conditions. This revision guide will walk you through a systematic approach to tackling case studies, equipping you with practical techniques and confidence for your Year 11 exams.
案例分析题是WJEC GCSE经济学考试的核心组成部分，要求你将理论知识应用于现实情境。掌握这一技能对于取得高分至关重要，因为它不仅考察你对经济概念的理解，还考验你在时间压力下分析数据、评估论点以及清晰表达的能力。本复习指南将带你系统攻克案例分析，为你提供实用的技巧和备考信心，助力11年级考试。
1. Understanding the WJEC Case Study Format | 理解WJEC案例分析格式
In both Unit 1 (How Markets Work) and Unit 2 (How the Economy Works), Section B of the paper presents a case study based on a contemporary economic issue. You will be given a short piece of text, often accompanied by a table, chart, or graphical data, followed by a series of structured questions worth up to 20 marks in total. The questions gradually increase in demand, moving from simple knowledge recall to high-level analysis and evaluation.
在Unit 1（市场如何运作）和Unit 2（经济如何运作）的试卷中，B部分都会给出一个基于当代经济问题的案例研究。你会拿到一段简短的文字，通常附有表格、图表或图形数据，然后是一系列结构性问题，总分最多20分。问题的难度逐步递增，从简单的知识再现到高难度的分析与评估。
Typically, the first question tests AO1 (knowledge) by asking you to define a key term from the case. The middle questions combine AO2 (application) and AO3 (analysis), requiring you to explain a cause or effect using the data provided. The final question is an evaluative one, asking you to discuss or assess a policy or outcome, and carries the most marks.
通常，第1小题考查AO1（知识），要求你定义案例中的某个关键术语。中间的题目结合AO2（应用）与AO3（分析），需要你运用所给数据解释原因或影响。最后一题是评估题，要求你讨论或评价某项政策或结果，分值最高。
2. Key Assessment Objectives | 关键评估目标
WJEC economics questions are designed around four assessment objectives. Understanding how marks are distributed across AO1, AO2, AO3, and AO4 will help you tailor your answers to what examiners are looking for.
WJEC经济学试题围绕四个评估目标设计。了解分数在AO1、AO2、AO3和AO4中的分配，有助于你写出符合考官期望的答案。
AO1: Demonstrate knowledge of economic concepts, terminology, and data. AO2: Apply knowledge to the specific case study context. AO3: Analyse economic issues, showing causal links and interpreting data. AO4: Evaluate economic arguments, considering different viewpoints and long-term vs. short-term consequences.
AO1：展示对经济概念、术语和数据的知识。AO2：将知识应用于具体的案例背景。AO3：分析经济问题，展示因果关联并解读数据。AO4：评估经济论点，考虑不同观点以及长期与短期后果。
The weighting in a typical case study might look like the table below:
典型案例分析题中各AO的权重可能如下表所示：
| Question | AO1 | AO2 | AO3 | AO4 |
|---|---|---|---|---|
| Q1 (2 marks) | 2 | 0 | 0 | 0 |
| Q2 (4 marks) | 0 | 2 | 2 | 0 |
| Q3 (6 marks) | 0 | 2 | 4 | 0 |
| Q4 (8 marks) | 0 | 2 | 2 | 4 |
3. How to Read and Deconstruct the Case Material | 如何解读与拆解案例材料
Do not rush straight into writing your answer. Spend 2-3 minutes actively reading the case study. Underline or highlight economic keywords, such as 'scarcity', 'external cost', 'inflation', or 'government spending'. Identify the main issue – whether it is a market failure, a macroeconomic problem, or a policy decision.
不要急于直接写答案。花两三分钟时间精读案例。画出或标记经济学关键词，如"稀缺性"、"外部成本"、"通货膨胀"、"政府支出"等。明确核心问题——是市场失灵、宏观经济问题，还是政策决策。
Next, look at any numerical data or charts. Note the units, time periods, and obvious trends. For example, if a table shows rising carbon emissions, think about negative externalities and possible government responses. Every piece of data is provided for a reason; it will be relevant to at least one of the questions.
接着，查看所有数值数据或图表。注意单位、时间段及明显趋势。例如，如果表格显示碳排放量上升，就要联想到负外部性和可能的政府对策。每一个数据都有其用意，必然与至少一道问题相关。
Finally, read the questions before you begin writing. This reverse approach helps you filter the case material and focus on the information needed for each specific sub-question.
最后，在动笔前先通读所有问题。这种逆向阅读法有助于你筛选案例信息，聚焦每个小题所需的内容。
4. Identifying the Relevant Economic Concepts | 锁定相关经济概念
A successful case study answer is built on a solid foundation of relevant theory. As you read, ask yourself: which part of the specification is being tested? If the case mentions discarded plastic bags in the ocean, you are likely dealing with negative production or consumption externalities, and possibly with government intervention such as taxation or regulation.
一份成功的案例分析答案建立在对相关理论的扎实掌握之上。阅读时反问自己：题目在考查考纲的哪一部分？如果案例提到海洋中废弃塑料袋，你可能要处理生产或消费的负外部性，也可能涉及税收或管制等政府干预手段。
If the case describes a rise in the consumer price index and a central bank's response, think about monetary policy, the interest rate transmission mechanism, and the trade-off between inflation and unemployment. Write a brief spider diagram in the margin listing the concepts you spot, so you don't forget them when crafting your answers.
如果案例描述了消费者价格指数上升和中央银行的应对措施，就要想到货币政策、利率传导机制以及通胀与失业之间的取舍。在页边空白处画一个简略的蛛网图，列出你识别的概念，以免组织答案时遗漏。
5. Applying Concepts to the Specific Context | 将概念应用到具体情境
Application is where many students lose marks. It is not enough to simply explain the theory of demand and supply; you must explicitly link it to the case. Use phrases like 'As shown in the case, the increase in raw material costs shifts the supply curve to the left...' or 'The data indicates that 67% of households are affected, which means...'
应用环节是许多学生失分之处。仅仅解释供需理论是不够的，你必须将其明确联系到案例。使用诸如"如案例所示，原材料成本上升使供给曲线左移……"或"数据表明67%的家庭受到影响，这意味着……"的表述。
Always quote or directly reference the information given. If the case mentions a firm named 'GreenCo', refer to 'GreenCo' rather than speaking in generalities. This signals to the examiner that you have engaged with the material and are applying economics, not just reproducing notes.
务必要引用或直接提及所给信息。如果案例提到一家名为"绿能公司"的企业，就称之为"绿能公司"，而不是泛泛而谈。这会向考官表明你确实结合了材料，在应用经济学知识，而非照搬笔记。
6. Data Analysis and Interpretation | 数据分析与解读
Many case studies include numerical data to test your analytical skills. You may be asked to calculate a percentage change, an index number, or to interpret a chart. The formula for percentage change is often useful:
许多案例包含数值数据，以检验你的分析技能。你可能需要计算百分比变化、指数，或解读图表。百分比变化公式常常派上用场：
Percentage Change = (New Value − Original Value) / Original Value × 100%
百分比变化 = (新值 − 原值) / 原值 × 100%
When describing trends in a graph, avoid vague statements like 'it went up'. Be precise: 'Between 2019 and 2022, average income increased by approximately 4% annually, while the price level rose at a faster rate of 5%.' Then explain the economic implication, such as a fall in real purchasing power.
描述图形趋势时，避免"它上升了"这样的模糊表述。要精确："2019至2022年间，平均收入每年约增长4%，而物价水平以更快的5%的速度上升。"然后解释经济含义，如实际购买力下降。
For diagrams provided, identify equilibrium points, surplus and shortage areas, or shifts in curves. Use the standard economic notation – D₁, S₁, P₁, Q₁ – and make sure your explanation matches the diagram.
对于所给图形，要识别均衡点、过剩与短缺区域，或曲线的移动。使用标准经济符号——D₁, S₁, P₁, Q₁——并确保解释与图形一致。
7. Mastering Evaluation Techniques | 掌握评估技巧
Evaluation (AO4) is the hardest skill to develop, but it is what separates a Grade 6 from a Grade 9. Evaluation means weighing up arguments, considering different stakeholder perspectives, and acknowledging that economic policies often involve trade-offs. Don't simply list pros and cons; make a justified concluding judgement.
评估（AO4）是最难培养的技能，但它正是区分6分和9分的关键。评估意味着权衡论据，考虑不同利益相关者的视角，并承认经济政策往往涉及取舍。不要只是罗列正反两面，而要给出有理有据的最终判断。
Use evaluative phrases such as 'In the short run... but in the long run...', 'However, this depends on the magnitude of the effect...', or 'From the perspective of consumers, the policy may be beneficial, whereas firms are likely to experience higher costs.' Always relate your judgement back to the context of the case study, using the evidence provided.
使用评估性短语，如"短期而言……但长期来看……"、"然而，这取决于影响的程度……"、"从消费者角度看，该政策可能有利，而企业则可能面临更高成本。"始终将你的判断与案例背景联系起来，并运用所给证据。
A strong evaluation answers the question 'To what extent...?' or 'Discuss...' by presenting a clear, supported conclusion. For example, 'A sugar tax is likely to be partially effective in reducing consumption, but its success ultimately hinges on the availability of substitutes and the price elasticity of demand.'
强有力的评估能以清晰、有依据的结论回答"在多大程度上……"或"讨论……"的问题。例如："糖税很可能在减少消费方面部分有效，但其成功最终取决于替代品的可得性和需求的价格弹性。"
8. Structuring a Top-Band Essay Answer | 建构高分简答题结构
For the higher-mark questions (6 and 8 marks), a clear structure is essential. Adopt the KAAE framework: Knowledge – define key terms; Application – use case material; Analysis – explain the chain of reasoning; Evaluation – weigh up different sides and conclude. Even a short 6-mark answer benefits from a mini evaluation sentence.
对于高分值的题目（6分和8分题），清晰的结构至关重要。采用KAAE框架：知识——定义关键术语；应用——使用案例材料；分析——解释推理链条；评估——权衡不同方面并给出结论。即便是简短的6分答案，加上一个简短的评估句也会增色不少。
Start each paragraph with a direct point. For instance: 'One reason for the market failure is the presence of negative externalities in production. The case states that the factory emits pollutants into the river, creating a cost to fishermen downstream. This means that the social cost exceeds the private cost, leading to overproduction.' Then add an evaluative comment: 'However, the size of the external cost depends on the river's capacity to absorb waste, which is not specified in the data.'
每段以明确的观点开头。例如："市场失灵的一个原因是生产中存在负外部性。案例指出工厂向河流排放污染物，给下游渔民造成了成本。这意味着社会成本超过私人成本，导致过度生产。"然后加上评估性评论："不过，外部成本的大小取决于河流的自我净化能力，这一点数据未予说明。"
Keep paragraphs focused and avoid repeating the same argument in different words. Time is limited, so make every sentence count.
段落要集中，避免换种说法重复同一个论点。时间有限，所以每句话都须言之有物。
9. Practice Case Study 1: Sugar Tax and Obesity | 实战案例一：糖税与肥胖问题
Read the following extract and consider how you would answer typical WJEC-style questions:
阅读以下摘录，思考如何回答WJEC风格的典型问题：
"In response to rising obesity rates, the government has introduced a sugar tax on soft drinks containing more than 5g of sugar per 100ml. Since the tax was implemented, sales of high-sugar drinks have fallen by 12%, while sales of diet and low-sugar alternatives have increased by 8%. However, some small retailers report reduced overall sales, and a consumer group argues that the tax unfairly raises the cost of living for lower-income households. The chart provided shows a decline in the quantity demanded of sugary drinks at every price level."
"为应对日益上升的肥胖率，政府对每100毫升含糖超过5克的软饮料征收糖税。征税以来，高糖饮料销量下降了12%，而低糖与无糖替代品销量上升了8%。但一些小型零售商反映整体销售额下降，一个消费者团体则认为该税不公平地增加了低收入家庭的生活成本。所附图表显示，在每一价格水平上含糖饮料的需求量均有所下降。"
Think about these questions: (1) Define 'demand'. (2) Explain, using a demand and supply diagram, how the sugar tax might affect the market for sugary drinks. (3) Analyse why low-income households might be disproportionately affected. (4) To what extent is a sugar tax the most effective policy to reduce obesity? In your planning, identify the negative externality, the shift in the supply curve due to the tax, and evaluate alternative policies such as education campaigns or advertising bans.
请思考以下问题：(1) 定义"需求"。(2) 运用供需图解释糖税如何影响含糖饮料市场。(3) 分析为何低收入家庭可能受到较大冲击。(4) 糖税在多大程度上是减少肥胖的最有效政策？在你的构思中，明确负外部性、征税导致的供给曲线移动，并评估教育宣传或广告禁令等替代政策的优劣。
10. Practice Case Study 2: Infrastructure Spending and Unemployment | 实战案例二：基础设施支出与失业
Consider this macroeconomic case:
请思考以下宏观经济案例：
"The country of Econtopia is experiencing high unemployment, particularly among young workers. The government proposes a £5 billion investment in road and rail projects, aiming to create 40,000 jobs directly and many more through the multiplier effect. Critics warn that increased public borrowing could raise interest rates and crowd out private investment. The data shows that the current national debt is 65% of GDP, and the unemployment rate stands at 8.2%."
"Econtopia国的失业率居高不下，青年群体尤为严重。政府提出将投入50亿英镑用于道路与铁路项目，旨在直接创造4万个就业岗位，并通过乘数效应带来更多岗位。批评者警告，增加的公共借款可能抬高利率并挤出私人投资。数据显示，目前国债占GDP的65%，失业率为8.2%。"
Now, outline your answers: (a) Define 'unemployment' and 'multiplier effect'. (b) Explain how infrastructure spending might reduce unemployment, referring to the case data. (c) Analyse the risk of crowding out. (d) Evaluate the overall impact of the government's plan on Econtopia's macroeconomic objectives, including price stability and economic growth.
现在，构思你的答案：(a) 定义"失业"和"乘数效应"。(b) 结合案例数据，解释基础设施支出如何可能降低失业。(c) 分析挤出效应风险。(d) 评估政府计划对Econtopia宏观经济目标的总体影响，包括物价稳定与经济增长。
11. Common Mistakes and How to Avoid Them | 常见错误与规避方法
One frequent error is writing everything you know about a topic (a 'brain dump') without linking it to the case. This wastes time and scores poorly on application marks. Always anchor your explanation in the specific information provided. Another mistake is ignoring the question command word: 'explain' means provide a chained argument, while 'discuss' mandates evaluation.
一个常见错误是，把关于某个话题所知的一切都倾泻出来（俗称"知识倾倒"），却没有结合案例。这不仅浪费时间，还在应用分上得分很低。务必以所给的具体信息为锚。另一个错误是忽视题目指令词："解释"要求构建链式论证，而"讨论"则必须进行评估。
Students also often misinterpret data. Don't confuse a decrease in the rate of inflation (disinflation) with an actual fall in the general price level (deflation). Be careful with units and percentages. If a chart shows 'percentage change', a value of -2% means the variable is shrinking, not that it is -2% in absolute terms.
学生还经常误读数据。切勿将通胀率下降（反通胀）与总体物价水平实际下降（通缩）混为一谈。注意单位与百分比。如果图表显示"百分比变化"，数值为-2%意味着变量在收缩，而非其绝对值变为-2%。
Finally, failing to include an evaluation for the last part of a question is a major opportunity missed. Even one well-placed 'However...' sentence can lift your answer into a higher mark band. Plan your time to leave 3-4 minutes at the end of the case study for a concluding judgement.
最后，错失机会的大忌是在题目的最后一部分不写评估。哪怕只有一个得当的"然而……"句，也能使你的答案跳入更高档次的分数区间。规划时间时，应在案例题末尾留出3-4分钟用于总结性判断。
12. Final Tips and Revision Checklist | 最后建议与复习清单
In the days before your exam, review key diagrams: the market equilibrium diagram, the negative/positive externality diagram, and the circular flow of income diagram. These are powerful tools to support your analysis. Also, revise a bank of evaluative comments that can be adapted to different contexts, such as 'the effectiveness depends on the price elasticity of demand', 'there are time lags', and 'it may create unintended consequences'.
考前数日，复习关键图表：市场均衡图、负/正外部性图以及收入循环流向图。它们是支撑你分析的利器。同时，温习一组可灵活运用于不同情境的评估性评论，如"效果取决于需求的价格弹性"、"存在时滞"、"可能产生意外后果"等。
Use this checklist when attempting a past-paper case study:
在尝试历年真题案例研究时，请对照此清单：
- Did I read the questions before studying the case? (我是否在读案例前先看了问题？)
- Have I highlighted economic keywords and data? (我是否标示了经济关键词和数据？)
- Does my answer apply to the named company/situation? (我的答案是否适用于题中具体公司/情境？)
- Have I included a diagram where relevant and fully labelled it? (我是否在相关处画了图并完整标注？)
- Is there a clear evaluation for the highest-mark question? (最高分题是否有清晰的评估？)
- Did I manage my time so that I spent approximately 1.5 minutes per mark? (我是否管理好时间，大致做到每分用时1.5分钟？)
Confidence in case studies comes with practice. Work through at least three full WJEC case study questions under timed conditions before the real exam, and use the mark scheme to refine your answers.
对案例分析的信心来自练习。在正式考试前，至少在三套完整的WJEC案例研究题目上计时演练，并用评分方案打磨你的答案。
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