GCSE CCEA Economics: Typical Past Paper Questions Walkthrough | GCSE CCEA 经济：典型例题详解

📚 GCSE CCEA Economics: Typical Past Paper Questions Walkthrough | GCSE CCEA 经济：典型例题详解

This article provides a detailed walkthrough of typical GCSE CCEA Economics past paper questions. Each section presents a common exam-style question, followed by a step-by-step solution in both English and Chinese. The aim is to help you master key analytical skills, including diagram analysis, calculation, and evaluation, so you can achieve top marks in your examinations.

本文详细解析 GCSE CCEA 经济学典型考题。每个小节展示一道常见考试题型，并分步给出中英双语的解答。旨在帮助你掌握图示分析、计算和评估等核心技能，在考试中取得优异成绩。

1. Demand and Supply Diagrams | 需求与供给图示分析

Question: The market for streaming services is in equilibrium. A new technology lowers the cost of providing streaming, while at the same time a rise in the number of remote workers increases the popularity of streaming. Using a demand and supply diagram, explain the likely effects on the equilibrium price and quantity.

题目： 流媒体服务市场处于均衡状态。一项新技术降低了提供流媒体服务的成本，同时远程工作者人数增加使流媒体更受欢迎。利用需求与供给图解释对均衡价格和数量的可能影响。

We begin by analysing the supply side. The new technology is a reduction in production costs, which increases supply. This shifts the supply curve to the right, from S to S1. On its own, this would lead to a lower equilibrium price and a higher quantity.

我们先分析供给端。新技术降低了生产成本，使供给增加，供给曲线从 S 向右移动到 S1。如果仅发生这一变化，均衡价格将下降，均衡数量将增加。

Now consider demand. More remote workers valuing streaming means an increase in consumer preference. This shifts the demand curve to the right, from D to D1. Alone, this would raise both equilibrium price and quantity.

再来看需求端。更多远程工作者青睐流媒体意味着消费者偏好增强，需求曲线从 D 向右移动到 D1。单独看，这将提高均衡价格和数量。

Combining both shifts, we see that equilibrium quantity definitely rises because both the supply increase and the demand increase push quantity upwards. The change in equilibrium price, however, is uncertain. The supply shift puts downward pressure on price, while the demand shift puts upward pressure on it. The final price depends on the relative size of the two shifts. If the supply shift is larger, price may fall; if the demand shift is larger, price may rise; they could offset each other exactly.

综合两个移动，均衡数量确定上升，因为供给增加和需求增加都推动数量向上。但均衡价格的变化不确定。供给移动给价格带来下行压力，需求移动则带来上行压力。最终价格取决于两种移动的相对大小。如果供给移动更大，价格可能下降；如果需求移动更大，价格可能上升；两者也可能完全抵消。

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2. Price Elasticity of Demand Calculation | 需求价格弹性计算

Question: A cinema currently charges £8 per ticket and sells 500 tickets per day. After raising the price to £10, ticket sales drop to 400 per day. Calculate the price elasticity of demand (PED) using the percentage change method, and interpret the result.

题目： 一家影院目前票价 £8，每日售出 500 张票。票价提高到 £10 后，日售票量降至 400 张。使用百分比变化法计算需求价格弹性（PED），并解释结果。

First, present the data clearly.

首先，清晰地呈现数据。

Price (£)	Quantity Demanded
8	500
10	400

Now calculate the percentage changes. The formula for PED is centre-aligned below.

现在计算百分比变化。PED 的公式在下方居中显示。

PED = %Δ Quantity Demanded ÷ %Δ Price

Step 1: %Δ Quantity Demanded = (New Q − Old Q) / Old Q × 100 = (400 − 500) / 500 × 100 = (−100 / 500) × 100 = −20%. This is a 20% decrease.

步骤 1：需求量变化百分比 = (新数量 − 原数量) / 原数量 × 100 = (400 − 500) / 500 × 100 = (−100 / 500) × 100 = −20%，即下降 20%。

Step 2: %Δ Price = (New P − Old P) / Old P × 100 = (10 − 8) / 8 × 100 = (2 / 8) × 100 = +25%. This is a 25% increase.

步骤 2：价格变化百分比 = (新价格 − 原价格) / 原价格 × 100 = (10 − 8) / 8 × 100 = (2 / 8) × 100 = +25%，即上涨 25%。

Step 3: PED = −20% ÷ 25% = −0.8. Ignoring the negative sign (since PED is always negative except for Veblen/Giffen goods), the absolute value is 0.8. This is less than 1, so demand is price inelastic. The cinema’s total revenue changed from £8 × 500 = £4,000 to £10 × 400 = £4,000, remaining unchanged – a characteristic close to unit elasticity, but here the value is slightly below 1; note that with inelastic demand a price rise increases total revenue, but due to rounding it may stay the same. A more precise calculation using the midpoint method would give PED ≈ −0.82, still inelastic.

步骤 3：PED = −20% ÷ 25% = −0.8。忽略负号（正常情况下 PED 均为负值，韦伯伦/吉芬商品除外），绝对值为 0.8。小于 1，因此需求缺乏价格弹性。影院的总收入从 £8 × 500 = £4,000 变为 £10 × 400 = £4,000，保持不变——这接近单位弹性特征，但此处数值略低于 1；注意对于缺乏弹性的需求，提价应使总收入增加，此处因四舍五入可能持平。若用中点法计算，PED 约为 −0.82，仍缺乏弹性。

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3. Impact of a Subsidy | 补贴的影响

Question: The government grants a subsidy of £3 per unit to producers of solar panels. Using a diagram, explain how this affects the market equilibrium, consumer price, producer price, and quantity.

题目： 政府给予太阳能板生产商每单位 £3 的补贴。利用图示解释这对市场均衡、消费者价格、生产者价格和产量有何影响。

A per-unit subsidy to producers reduces their costs of production. Graphically, this shifts the supply curve vertically downwards by the amount of the subsidy; equivalently, we show the supply curve shifting to the right. The new equilibrium occurs at a higher quantity. Consumers now pay a lower price (Pc), while producers receive that consumer price plus the subsidy (Pp = Pc + £3). The gap between the old supply and the new supply curve represents the subsidy per unit.

给予生产商的每单位补贴降低了他们的生产成本。在图形上，这使供给曲线垂直向下移动补贴金额的量；等价地，我们画成供给曲线向右移动。新的均衡点对应更高的产量。消费者现在支付更低的价格（Pc），而生产者获得消费者价格加上补贴（Pp = Pc + £3）。原供给曲线与新供给曲线之间的垂直距离即为每单位补贴额。

The total cost to the government is the subsidy per unit multiplied by the new equilibrium quantity (subsidy × Q1). Welfare analysis would show that the subsidy can lead to overproduction and some deadweight loss if not targeted correctly, but the basic exam question focuses on the price and quantity effects.

政府的总成本是每单位补贴乘以新均衡数量（补贴 × Q1）。福利分析会显示，如果补贴目标不当，可能导致过度生产和无谓损失，但基本考试题目重点关注价格和数量效应。

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4. Negative Externalities and Market Failure | 负外部性与市场失灵

Question: A factory emits pollution that harms local residents. Explain, using a diagram, why this leads to market failure and suggest one government policy to correct it.

题目： 一家工厂排放污染，损害了当地居民的健康。借助图示解释这为何导致市场失灵，并提出一项政府纠正措施。

In the free market, the factory considers only its private costs (MPC) when deciding how much to produce. The pollution imposes external costs on third parties, so the marginal social cost (MSC) is greater than MPC. The free market equilibrium occurs where MPC = marginal private benefit (MPB), producing Qmkt. However, the socially efficient output is where MSC = MSB, giving the lower output Qopt. Because Qmkt > Qopt, there is overproduction and a welfare loss triangle.

在自由市场中，工厂决定产量时只考虑私人成本（MPC）。污染给第三方施加了外部成本，因此边际社会成本（MSC）高于 MPC。自由市场均衡在 MPC = 边际私人利益（MPB）处，产量为 Qmkt。但社会有效产量在 MSC = MSB 处，对应更低的产量 Qopt。由于 Qmkt > Qopt，存在过度生产，并产生福利损失三角。

One possible policy is a tax equal to the value of the external cost at the efficient output (a Pigouvian tax). This shifts the MPC curve upward to align with MSC, internalising the externality. The factory now produces at Qopt, eliminating the welfare loss. Alternatives include regulation (limits on emissions) or tradable pollution permits.

一个可能的政策是征收相当于有效产量处外部成本金额的税收（庇古税）。这使 MPC 曲线向上移动到与 MSC 重合，将外部性内部化。此时工厂会在 Qopt 处生产，消除福利损失。其他替代政策包括管制（排放限额）或可交易污染许可。

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5. Circular Flow and the Multiplier | 循环流动与乘数效应

Question: In a simple two-sector economy, households spend 75% of any additional income on consumption. Calculate the value of the multiplier. If investment rises by £200 million, what is the eventual increase in national income?

题目： 在一个简单的两部门经济中，家庭将任何新增收入的 75% 用于消费。计算乘数的值。如果投资增加 £2 亿，国民收入最终会增长多少？

The marginal propensity to consume (MPC) is 0.75. The multiplier formula (with no taxes or imports) is:

边际消费倾向（MPC）为 0.75。在没有税收和进口的情况下，乘数公式为：

Multiplier = 1 ÷ (1 − MPC)

Substituting MPC = 0.75 gives Multiplier = 1 ÷ (1 − 0.75) = 1 ÷ 0.25 = 4.

代入 MPC = 0.75，得乘数 = 1 ÷ (1 − 0.75) = 1 ÷ 0.25 = 4。

Therefore, an initial injection of £200 million in investment will be multiplied by 4: total ΔY = £200m × 4 = £800 million. This occurs because the initial investment becomes income for workers, who then spend 75% of it, creating further income, and so on in successive rounds. In a more realistic open economy with taxes and imports, the multiplier would be smaller because of leakages.

因此，初始 £2 亿的投资注入将被乘以 4：总 ΔY = £200m × 4 = £8 亿。这是因为初始投资成为工人收入，他们再将其中的 75% 用于消费，创造进一步收入，如此循环。在更现实的开放经济中，由于税收和进口等漏出，乘数会更小。

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6. Economic Growth and GDP | 经济增长与 GDP

Question: A country’s nominal GDP in Year 1 was £520 billion. In Year 2, nominal GDP rose to £546 billion. Over the same period, the GDP deflator rose by 4%. Calculate real GDP for Year 2 and the real economic growth rate. (Year 1 is the base year, deflator = 100.)

题目： 某国第一年名义 GDP 为 £5200 亿。第二年名义 GDP 升至 £5460 亿。同期 GDP 平减指数上涨了 4%。计算第二年的实际 GDP 和实际经济增长率。（第一年为基年，平减指数 = 100。）

Year 1 deflator = 100, nominal GDP = real GDP = £520 bn. Year 2 deflator = 100 + 4 = 104. Real GDP Year 2 = (Nominal GDP Year 2 ÷ Deflator Year 2) × 100 = (£546 bn ÷ 104) × 100 = £525 bn. Growth rate = [(Real GDP Year 2 − Real GDP Year 1) / Real GDP Year 1] × 100 = [(525 − 520) / 520] × 100 = (5 / 520) × 100 ≈ 0.96%. Thus, while nominal GDP grew by (£546−520)/520 = 5%, real growth was less than 1% after adjusting for inflation.

第一年平减指数 = 100，名义 GDP = 实际 GDP = £5200 亿。第二年平减指数 = 100 + 4 = 104。第二年实际 GDP = (第二年名义 GDP ÷ 第二年平减指数) × 100 = (£5460 亿 ÷ 104) × 100 = £5250 亿。实际增长率 = [(5250 − 5200) / 5200] × 100 = (50 / 5200) × 100 ≈ 0.96%。可见，虽然名义 GDP 增长率为 5%，但剔除通胀后实际增长不足 1%。

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7. Types of Unemployment | 失业类型判断

Question: Identify the type of unemployment most likely experienced in each case: (a) A car worker is laid off because a recession has reduced demand for new cars. (b) A typist loses her job as firms switch to voice-recognition software. (c) A graduate takes three months to find her first job.

题目： 判断以下各种情况最可能属于哪种失业类型：(a) 一名汽车工人因经济衰退导致新车需求下降而被解雇。(b) 一名打字员因企业改用语音识别软件而失业。(c) 一名毕业生花了三个月时间找到第一份工作。

(a) This is cyclical (or demand-deficient) unemployment. It is caused by a lack of aggregate demand in the economy during a downturn. (b) This is structural unemployment. The worker’s skills have become obsolete due to technological change, creating a mismatch between the skills supplied and those demanded. (c) This is frictional unemployment. It is the short-term period when a worker is moving between jobs or entering the labour market for the first time; it is often considered a natural part of a healthy economy.

(a) 这是周期性（或需求不足型）失业，由经济衰退期间总需求不足引起。(b) 这是结构性失业，工人的技能因技术变革而过时，导致技能供需不匹配。(c) 这是摩擦性失业，指工人转换工作或初次进入劳动力市场时的短期过渡阶段；这通常被视为健康经济中的自然组成部分。

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8. Inflation and Its Effects | 通货膨胀及其影响

Question: The UK inflation rate rises from 2% to 6%. Discuss who might gain and who might lose from this unexpected increase in inflation.

题目： 英国通胀率从 2% 升至 6%。探讨这一未预期到的通胀上升中，谁可能受益、谁可能受损。

Borrowers with fixed-rate loans gain, because they repay their debts with money that has less purchasing power. Homeowners on fixed-rate mortgages see a fall in the real value of their debt. Savers on fixed interest rates lose, as the real return on their savings becomes negative if the interest rate is below inflation. Workers whose wages are not adjusted promptly lose real income. Exporters may also suffer if UK prices rise faster than those of competitors, making exports less price-competitive unless the exchange rate depreciates. Finally, people on fixed incomes (such as pensioners not indexed to inflation) find their purchasing power eroded.

固定利率贷款的借款人受益，因为他们用购买力下降的货币偿还债务。持有固定利率抵押贷款的房主，其债务实际价值下降。固定利率储户受损，因为如果利率低于通胀，储蓄的实际回报率为负。工资未及时调整的工人实际收入受损。出口商也可能受损，因为若英国价格涨幅超过竞争对手，出口的价格竞争力将下降，除非汇率贬值。最后，固定收入者（如未与通胀挂钩的养老金领取者）发现购买力被侵蚀。

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9. Fiscal Policy Measures | 财政政策措施

Question: A government is facing a high budget deficit and wishes to reduce it. Explain two fiscal policy measures it could take and analyse their possible impact on economic growth.

题目： 某政府正面临高额预算赤字，希望削减赤字。解释它可以采取的两项财政政策措施，并分析它们对经济增长的可能影响。

Measure 1: Increase income tax. This directly reduces households’ disposable income, lowering consumption (C). As a result, aggregate demand (AD) falls, which may reduce inflationary pressure and improve the trade balance, but can also dampen short-run economic growth and potentially raise unemployment. Measure 2: Reduce government spending on goods and services. This directly cuts a component of AD (G), also shifting AD leftwards. The effect is similar – lower growth in the short term, but it can free up resources for the private sector and help control public debt. Both measures risk worsening a recession if the economy is already weak; careful timing and targeting are crucial to avoid harming long-run productive capacity.

措施 1：提高所得税。这直接减少家庭可支配收入，降低消费（C），从而使总需求（AD）下降。这有助于减轻通胀压力并改善贸易差额，但也可能抑制短期经济增长，并可能增加失业。措施 2：减少政府对商品和服务的购买。这直接削减总需求中的政府支出（G），同样使 AD 左移。效果类似——短期内增长放缓，但能为私营部门腾出资源，并有助于控制公共债务。若经济本已疲弱，两项措施都可能加深衰退；因此需要谨慎选择时机和对象，以避免损害长期生产能力。

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10. Exchange Rates and Trade | 汇率与贸易

Question: The pound sterling depreciates by 15% against the euro. Explain how this depreciation is likely to affect UK exports to the eurozone, UK imports from the eurozone, and the current account balance in the short run and long run.

题目： 英镑对欧元贬值 15%。解释这一贬值短期内和长期内可能如何影响英国对欧元区的出口、英国从欧元区的进口，以及经常账户余额。

A depreciation makes UK goods cheaper for eurozone buyers, so exports should increase (assuming demand is price elastic). At the same time, imports from the eurozone become more expensive for UK consumers, so import volumes should fall. However, in the short run, the current account may actually worsen before it improves – this is known as the J-curve effect. Immediately after depreciation, import prices rise but volumes adjust slowly because of existing contracts and inelastic demand. Hence the import bill rises in domestic currency terms, worsening the trade balance. Over time, as consumers and firms switch to cheaper UK substitutes, export revenue grows and import volume contracts, leading to an improvement in the current account, provided that the Marshall-Lerner condition holds (i.e., sum of price elasticities of demand for exports and imports > 1).

贬值使英国商品对欧元区买家更便宜，因此出口应增加（假设需求具有价格弹性）。同时，从欧元区进口的商品对英国消费者变得更贵，进口量应下降。然而，短期内经常账户可能先恶化后改善——这被称为 J 曲线效应。贬值后，进口价格立即上涨，但由于既有合同和需求缺乏弹性，进口量调整缓慢。因此以本币计价的进口支出上升，恶化贸易差额。随时间推移，随着消费者和企业转向更便宜的英国替代品，出口收入增长、进口量缩减，经常账户将改善，条件是马歇尔-勒纳条件成立（即出口与进口的需求价格弹性之和大于 1）。

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