📚 IGCSE Edexcel Economics: Fiscal Policy Key Points | 财政政策考点精讲
Fiscal policy is one of the most powerful instruments that governments use to influence economic performance. It involves deliberate changes in government spending and taxation to affect aggregate demand, employment, price stability and long-run growth. In the IGCSE Edexcel Economics syllabus, a clear understanding of fiscal policy is essential for analysing how authorities respond to recessions, inflation and other macroeconomic challenges.
财政政策是政府用来影响经济表现的最有力工具之一。它通过有意地改变政府支出和税收来影响总需求、就业、价格稳定和长期增长。在IGCSE Edexcel经济学教学大纲中，清晰地理解财政政策对于分析当局如何应对衰退、通胀和其他宏观经济挑战至关重要。
1. What is Fiscal Policy? | 什么是财政政策？
Fiscal policy refers to the decisions a government makes about how much it spends and how much it collects through taxes. These decisions are presented annually in the government budget, which details planned public expenditure and expected tax revenues. Fiscal policy can be used to expand or contract the level of aggregate demand in the economy.
财政政策是指政府就支出多少和通过税收征收多少所作出的决策。这些决策每年在政府预算中呈现，该预算详细说明了计划的公共支出和预期的税收收入。财政政策可用于扩大或收缩经济中的总需求水平。
The main objectives of fiscal policy include promoting sustainable economic growth, keeping unemployment low, maintaining price stability, achieving a satisfactory balance of payments position and making the distribution of income more equal. By adjusting spending and taxes, governments aim to smooth the business cycle and correct market failures.
财政政策的主要目标包括促进可持续的经济增长、保持低失业率、维持价格稳定、实现令人满意的国际收支状况以及使收入分配更平等。通过调整支出和税收，政府旨在抚平经济周期并纠正市场失灵。
In Edexcel IGCSE Economics, you need to know that fiscal policy can be used as a demand-side policy, shifting the aggregate demand curve. However, some supply-side effects can also occur, for example when tax cuts encourage work or investment.
在Edexcel IGCSE经济学中，你需要知道财政政策可以被用作一种需求侧政策，使总需求曲线移动。然而，也可能会出现一些供给侧效应，例如减税鼓励工作或投资。
2. The Government Budget | 政府预算
The government budget is a statement of the government’s planned spending and tax revenue for the coming financial year. The balance between spending and revenue determines whether the budget is in surplus, deficit or balanced. A budget surplus occurs when tax revenue exceeds government spending; a budget deficit occurs when spending is greater than revenue; and a balanced budget is when the two are equal.
政府预算是一份关于政府计划在未来一个财政年度的支出和税收收入的报表。支出和收入之间的余额决定了预算是盈余、赤字还是平衡。当税收收入超过政府支出时就会出现预算盈余；当支出大于收入时就会出现预算赤字；平衡预算是指两者相等。
A persistent budget deficit adds to the national debt, as the government must borrow to cover the shortfall. Although a deficit can be used to stimulate the economy during a slump, many governments aim for a balanced budget over the economic cycle. Students should be able to interpret simple budget figures and explain the difference between the deficit and the national debt.
持续的预算赤字会增加国债，因为政府必须借款来弥补缺口。尽管在经济衰退期间赤字可被用来刺激经济，但许多政府追求在整个经济周期内实现预算平衡。学生应能够解读简单的预算数据并解释赤字和国债之间的区别。
3. Taxation: Types and Principles | 税收：类型与原则
Taxation is a compulsory payment to the government without any direct benefit in return. Taxes are the main source of government revenue and can be classified in several ways. The two most important classifications for IGCSE are direct versus indirect taxes, and progressive, regressive and proportional taxes.
税收是一种强制付给政府的款项，并没有直接的回报利益。税收是政府收入的主要来源，可以按几种方式分类。对IGCSE来说最重要的两种分类是直接税与间接税，以及累进税、累退税和比例税。
A good tax system should be equitable, certain, convenient and economical to collect. But when designing fiscal policy, governments must balance these principles against the need to raise revenue and influence behaviour. Taxation can also be used to discourage negative externalities, such as tobacco and carbon taxes.
一个好的税收制度应该是公平、确定、便利且征收成本经济的。然而在设计财政政策时，政府必须在这些原则与筹集收入和影响行为的需要之间取得平衡。税收也可以用来抑制负外部性，例如烟草税和碳税。
4. Direct and Indirect Taxes | 直接税与间接税
Direct taxes are levied on the income or wealth of individuals and firms and are paid directly to the government. The burden cannot be shifted to someone else. Indirect taxes are imposed on spending on goods and services; the seller collects the tax and passes it on to the government. The burden can be partly shifted to consumers through higher prices.
直接税是对个人和公司的收入或财富征收的，直接付给政府，税负不能转嫁给他人。间接税是对商品和服务支出征收的；销售者代收税款并上交政府，税负可通过提价部分转嫁给消费者。
| Direct Tax | 直接税 | Indirect Tax | 间接税 |
|---|---|
| Income tax 所得税 | Value Added Tax (VAT) 增值税 |
| Corporation tax 公司税 | Excise duties (e.g. on fuel, alcohol) 消费税（如燃油税、酒税） |
| Capital gains tax 资本利得税 | Customs duties (tariffs) 关税 |
| Inheritance tax 遗产税 | Stamp duty 印花税 |
Direct taxes tend to be progressive (explained in the next section) and can be used to redistribute income. Indirect taxes are often regressive, taking a larger share of income from lower-income households, but they are easier to collect and harder to avoid.
直接税往往具有累进性（下一节解释），可用于再分配收入。间接税通常是累退的，从低收入家庭中拿走更大比例的收入，但它们更易于征收且难以规避。
5. Progressive, Regressive and Proportional Taxes | 累进税、累退税与比例税
A progressive tax takes a larger percentage of income from high-income earners. The average tax rate rises as income rises. Income tax with increasing marginal rates is an example. A regressive tax takes a larger percentage of income from low-income earners, so the average tax rate falls as income rises. Many indirect taxes are regressive. A proportional tax takes the same percentage of income from all earners, regardless of income level.
累进税从高收入者那里拿走更大比例的收入，平均税率随收入增加而上升。边际税率递增的所得税就是一个例子。累退税从低收入者那里拿走更大比例的收入，因此平均税率随收入增加而下降。许多间接税是累退的。比例税从所有收入者那里拿走相同比例的收入，不论收入水平。
Suppose a country has a simple income tax system: the first £10,000 of income is tax-free, the next £20,000 is taxed at 10%, and any income above £30,000 is taxed at 25%. A person earning £15,000 pays tax on £5,000, so £500, giving an average tax rate of 3.3%. A person earning £50,000 pays tax on £10,000 at 10% (£1,000) and on £20,000 at 25% (£5,000), total £6,000, an average rate of 12%. This shows the progressive nature of the system.
假设某国有一个简单的所得税制：前10000英镑收入免税，接下来的20000英镑按10%征税，超过30000英镑的部分按25%征税。一个收入15000英镑的人需就5000英镑纳税，税款为500英镑，平均税率3.3%。一个收入50000英镑的人需就10000英镑按10%纳税（1000英镑），就20000英镑按25%纳税（5000英镑），合计6000英镑，平均税率12%。这显示了该税制的累进性质。
Progressive taxes help reduce income inequality and act as automatic stabilisers. Regressive taxes can increase inequality, so governments often combine them with progressive benefits or exempt basic necessities from VAT.
累进税有助于减少收入不平等，并充当自动稳定器。累退税会加剧不平等，因此政府常将其与累进的福利相结合，或对基本必需品免征增值税。
6. Government Spending | 政府支出
Government spending is the total amount of money the public sector spends on goods, services and transfer payments. It is divided into current spending (day-to-day running costs, such as salaries of public servants, medicines for the NHS, interest on national debt) and capital spending (investment in infrastructure, such as roads, hospitals and schools).
政府支出是公共部门在商品、服务和转移支付上支出的总金额。它分为经常性支出（日常运营成本，如公务员薪资、国民医疗服务体系的药品、国债利息）和资本性支出（基础设施投资，如道路、医院和学校）。
Transfer payments, like pensions and unemployment benefits, are not included in the measurement of GDP because no current production takes place, but they are a key part of government expenditure. Higher government spending can directly boost aggregate demand and also improve the supply side of the economy if it raises productivity.
转移支付，如养老金和失业救济金，不计入国内生产总值的衡量，因为没有发生当期的生产活动，但它们是政府支出的关键组成部分。更高的政府支出可以直接推动总需求，如果提高了生产率，也能改善经济的供给侧。
For IGCSE, remember that changes in spending on education, healthcare, defence and welfare all have different impacts on the economy, and you should be able to discuss how reallocating the budget might affect different objectives.
对于IGCSE，请记住在教育、医疗、国防和福利方面的支出变化对经济有着不同的影响，你应能够讨论预算重新分配可能如何影响不同的目标。
7. Expansionary Fiscal Policy | 扩张性财政政策
Expansionary (or reflationary) fiscal policy aims to increase aggregate demand and stimulate economic activity. The government cuts taxes and/or raises public spending. Lower direct taxes increase households’ disposable income, encouraging consumption. Lower indirect taxes reduce prices and boost purchasing power. Higher government spending directly adds to AD, while increased benefits raise spending by the poor.
扩张性（或称通货再膨胀）财政政策旨在增加总需求并刺激经济活动。政府减税和/或增加公共支出。降低直接税可增加家庭的可支配收入，从而鼓励消费。降低间接税使价格下降并增强购买力。增加政府支出直接推高总需求，而提高福利则会增加穷人的支出。
This type of policy is typically used during a recession or a period of high unemployment. It may lead to a budget deficit, but the hope is that the resulting economic growth will eventually generate extra tax revenues that reduce the deficit. However, excess expansionary policy can cause demand-pull inflation.
这类政策通常在经济衰退或高失业时期使用。它可能会导致预算赤字，但期望由此带来的经济增长最终会产生额外的税收收入，从而减少赤字。然而，过度的扩张性政策可能引发需求拉动型通货膨胀。
8. Contractionary Fiscal Policy | 紧缩性财政政策
Contractionary (or deflationary) fiscal policy is designed to reduce aggregate demand and cool down an overheating economy. The government raises taxes and/or cuts its spending. Higher direct taxes lower disposable income, reducing consumption. Higher indirect taxes raise the cost of living. Cuts in government spending reduce the G component of AD directly.
紧缩性（或称通货紧缩）财政政策旨在减少总需求，为过热的经济降温。政府提高税收和/或削减支出。更高的直接税降低可支配收入，减少消费。更高的间接税提高生活成本。削减政府支出直接减少总需求中的G部分。
Contractionary policy is used to control inflation, reduce a trade deficit by curbing import demand, and shrink a large budget deficit. However, it tends to raise unemployment and slow economic growth, so it can be politically unpopular.
紧缩性政策用于控制通货膨胀、通过抑制进口需求来减少贸易逆差，以及缩减庞大的预算赤字。但是，它往往会推高失业率并减缓经济增长，因此在政治上可能不受欢迎。
9. Effects on Macroeconomic Objectives | 对宏观经济目标的影响
Fiscal policy can directly affect the key macroeconomic objectives that you study in IGCSE Economics. The effects depend on whether the policy is expansionary or contractionary and on the structure of the economy.
财政政策可以直接影响你在IGCSE经济学中学习的关键宏观经济目标。影响取决于政策是扩张性的还是紧缩性的，以及经济结构。
Economic growth: Expansionary fiscal policy increases AD and can raise real GDP, especially when there is spare capacity. Contractionary policy reduces growth and can even cause a recession.
经济增长： 扩张性财政政策增加总需求，可以提高实际国内生产总值，尤其是在存在闲置产能时。紧缩性政策降低增长，甚至可能导致衰退。
Unemployment: Higher government spending and tax cuts create jobs directly and indirectly, lowering unemployment. Austerity measures tend to raise unemployment.
失业： 更高的政府支出和减税直接及间接地创造就业，降低失业率。紧缩措施往往抬高失业率。
Inflation: Expansionary policy can push prices up if the economy is near full capacity, causing demand-pull inflation. Contractionary policy reduces inflationary pressure.
通货膨胀： 如果经济接近充分产能，扩张性政策可能推高物价，引发需求拉动型通货膨胀。紧缩性政策减轻通胀压力。
Balance of payments: Rising domestic income increases imports, potentially worsening the current account. A contractionary policy dampens import demand. However, if expansion is export-led or improves productivity, the effect may be smaller.
国际收支： 国内收入上升会增加进口，可能使经常账户恶化。紧缩性政策抑制进口需求。然而，如果扩张是由出口驱动或提高了生产率，影响可能较小。
Income distribution: Progressive taxes and increased welfare spending make the distribution of income more equal. Regressive indirect taxes and cuts in benefits tend to increase inequality.
收入分配： 累进税和增加福利支出使收入分配更平等。累退的间接税和削减福利往往会加剧不平等。
10. Limitations of Fiscal Policy | 财政政策的局限性
Although fiscal policy is a powerful tool, it has several limitations that reduce its effectiveness. Firstly, there are significant time lags: the government must recognise the problem, design the policy, pass legislation and implement the changes. By the time the policy takes effect, economic conditions may have changed.
尽管财政政策是一个有力的工具，但它有几个局限性会降低其有效性。首先，存在显著的时间滞后：政府必须识别问题、设计政策、通过立法并实施变革。等到政策生效时，经济状况可能已经改变。
Secondly, political considerations often interfere. Governments may avoid tax rises or spending cuts before elections, or use fiscal expansion to gain popularity even when it is economically inappropriate. Thirdly, expansionary fiscal policy can ‘crowd out’ private investment if government borrowing pushes up interest rates.
第二，政治考虑常常产生干扰。政府可能在大选前避免增税或削减支出，或者在即使经济上不合适时也利用财政扩张来获取支持。第三，如果政府借款推高了利率，扩张性财政政策可能会“挤出”私人投资。
Other limitations include the difficulty of forecasting the size of the output gap, the risk that high budget deficits lead to unsustainable public debt, and the fact that some tax changes may have negative supply-side effects, such as discouraging work or entrepreneurship.
其他局限性包括难以预测产出缺口的大小、高预算赤字导致不可持续的公共债务的风险，以及某些税收变动可能产生负面的供给侧效应，例如抑制工作或创业。
11. Automatic Stabilisers | 自动稳定器
Automatic stabilisers are features of the tax and welfare system that automatically reduce the fluctuations of the business cycle without any deliberate policy change. They work by offsetting changes in disposable income as economic conditions vary.
自动稳定器是税收和福利体系的一些特征，它们无需任何刻意的政策变化就能自动减少经济周期的波动。它们通过在经济状况变化时抵消可支配收入的变动来发挥作用。
The two most important automatic stabilisers are progressive taxes and unemployment benefits. In a boom, rising incomes push people into higher tax brackets, so tax revenues increase faster than incomes, dampening spending. In a recession, falling incomes reduce tax take, and spending on unemployment benefits rises automatically, which supports disposable income and consumption.
最重要的两个自动稳定器是累进税和失业救济金。在经济繁荣时，收入增加使人们进入更高的税率档次，因此税收收入增长快于收入，从而抑制支出。在经济衰退时，收入下降减少了税收，而失业救济金支出自动增加，这支撑了可支配收入和消费。
Automatic stabilisers are valuable because they work instantly and do not suffer from the decision lags of discretionary fiscal policy. However, they cannot entirely eliminate the business cycle and are less powerful in countries with less progressive tax systems.
自动稳定器很有价值，因为它们即时生效，而且不会遭受相机抉择财政政策的决策时滞。然而，它们不能完全消除经济周期，并且在税制累进程度较低的国家作用较弱。
12. Fiscal Policy vs Monetary Policy | 财政政策与货币政策比较
Both fiscal and monetary policy are demand-side instruments used to manage the macroeconomy, but they differ in important ways. The table
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