Fiscal Policy | 财政政策

📚 Fiscal Policy | 财政政策

Fiscal policy refers to the use of government spending and taxation to influence the level of economic activity. It is one of the two main macroeconomic policies used by governments to manage the economy, alongside monetary policy. For Cambridge IGCSE Economics, you need to understand how fiscal policy works, its tools, and its effects on key macroeconomic objectives such as economic growth, employment, and price stability.

财政政策是指政府通过调整支出和税收来影响经济活动水平的手段。它与货币政策并列为政府管理经济的两大主要宏观政策。在剑桥IGCSE经济学课程中，你需要理解财政政策的运作方式、其政策工具及其对经济增长、就业和物价稳定等主要宏观经济目标的影响。

1. Government Revenue and Expenditure | 政府收入与支出

Government revenue is the money the government collects from various sources to fund its activities. The main sources include direct taxes (such as income tax and corporation tax), indirect taxes (such as VAT and excise duties), and non-tax revenue (such as dividends from state-owned enterprises and fines). Direct taxes are levied on income and wealth, while indirect taxes are levied on spending on goods and services.

政府收入是政府从各种渠道筹集用于资助其活动的资金。主要来源包括直接税（如所得税和公司税）、间接税（如增值税和消费税）以及非税收收入（如国有企业分红和罚款）。直接税是对收入和财富征收的税，而间接税是对商品和服务消费征收的税。

Government expenditure is the total spending by the government. It can be classified into two types: current expenditure (day-to-day spending on wages, administration, and maintaining public services) and capital expenditure (spending on infrastructure such as roads, schools, and hospitals). It can also be classified as transfer payments (welfare benefits, pensions, subsidies) and expenditure on goods and services (healthcare, education, defence, and public sector wages).

政府支出是政府的总花费。它可分为两大类：经常性支出（用于工资、行政和维持公共服务的日常开支）和资本性支出（用于道路、学校、医院等基础设施的开支）。它还可分类为转移支付（福利金、养老金、补贴）和商品与服务支出（医疗、教育、国防和公共部门工资）。

2. The Budget: Surplus, Deficit, and Balance | 预算：盈余、赤字与平衡

The government budget is a statement of the government’s planned revenue and expenditure for a given financial year. When government revenue equals government expenditure, the budget is balanced. When revenue exceeds expenditure, there is a budget surplus. When expenditure exceeds revenue, there is a budget deficit, which must be financed by government borrowing.

政府预算是政府在某一财政年度内计划收入和支出的报表。当政府收入等于政府支出时，预算为平衡预算。当收入超过支出时，存在预算盈余。当支出超过收入时，存在预算赤字，需要通过政府借贷来弥补缺口。

A budget surplus means the government is taking more money out of the economy than it is injecting, which has a contractionary effect on aggregate demand. A budget deficit means the government is injecting more money than it takes out, which has an expansionary effect. The government’s fiscal stance can therefore be described as expansionary, contractionary, or neutral.

预算盈余意味着政府从经济中抽取的资金多于注入的资金，对总需求产生紧缩效应。预算赤字意味着政府注入的资金多于抽取的资金，产生扩张效应。因此，政府的财政立场可以描述为扩张性、紧缩性或中性。

3. Tools of Fiscal Policy: Taxation | 财政政策工具：税收

Taxation is the primary revenue-raising tool of fiscal policy and is also used to influence behaviour. Changes in tax rates directly affect disposable income. For example, a reduction in income tax increases household disposable income, leading to higher consumer spending and a shift in aggregate demand to the right. Conversely, an increase in income tax reduces disposable income, lowering consumption and shifting aggregate demand to the left.

税收是财政政策最主要的筹资工具，同时也用于引导经济行为。税率的变化直接影响可支配收入。例如，降低所得税会增加家庭可支配收入，导致消费支出增加，总需求曲线右移。相反，提高所得税会减少可支配收入，降低消费，使总需求曲线左移。

Indirect taxes such as VAT and excise duties affect the prices of goods and services. A rise in VAT increases the general price level, which may reduce real incomes and discourage spending. Excise duties on demerit goods (such as tobacco and alcohol) are used to reduce consumption and correct market failure, while subsidies on merit goods (such as education and healthcare) lower prices and encourage consumption.

增值税和消费税等间接税影响商品和服务的价格。增值税上调会推高整体价格水平，从而降低实际收入并抑制支出。对劣值品（如烟草和酒类）征收消费税用于减少消费和纠正市场失灵，而对优值品（如教育和医疗）的补贴则降低价格并鼓励消费。

4. Tools of Fiscal Policy: Government Spending | 财政政策工具：政府支出

Government spending is the other main tool of fiscal policy. An increase in government spending (for example, on infrastructure projects such as new motorways and hospitals) directly injects money into the circular flow of income, creating jobs and raising aggregate demand. This is particularly effective during a recession, when private sector confidence and spending are weak.

政府支出是财政政策的另一主要工具。增加政府支出（例如投资新的高速公路和医院等基础设施项目）直接将资金注入收入循环流程中，创造就业并提高总需求。这在经济衰退期间尤其有效，因为此时私营部门的信心和支出都较为疲弱。

Government spending can be categorised into transfer payments, which redistribute income but do not directly involve the purchase of goods and services, and spending on goods and services, which contributes directly to aggregate demand. An increase in transfer payments (such as jobseeker’s allowance or pensions) also raises the incomes of recipients, who typically have a high marginal propensity to consume, boosting consumption expenditure across the economy.

政府支出可分为转移支付——即收入再分配但未直接涉及购买商品和服务——以及商品和服务的支出，后者直接构成总需求的一部分。增加转移支付（如求职者津贴或养老金）也会提高受助者的收入，而这些人通常具有较高的边际消费倾向，从而促进整个经济的消费支出。

5. Expansionary Fiscal Policy | 扩张性财政政策

Expansionary fiscal policy involves increasing government spending and/or reducing taxes to increase aggregate demand. It is used when the economy is in a recession or experiencing a negative output gap, with high unemployment and below-target economic growth. The aim is to stimulate demand, create jobs, and bring the economy back to full employment.

扩张性财政政策是指通过增加政府支出和/或减税来提高总需求。它用于经济处于衰退或存在负产出缺口、失业率高企且经济增长低于目标水平之时。其目标是刺激需求、创造就业并使经济回到充分就业状态。

AD = C + I + G + (X − M)

Since government spending (G) is a component of aggregate demand, an increase in G directly raises AD. A tax cut increases disposable income, raising consumption (C), which also shifts AD to the right. The actual shift in AD is often larger than the initial injection due to the multiplier effect — the process by which an initial injection of spending leads to a larger final increase in national income.

因为政府支出（G）是总需求的一个组成部分，G 的增加直接推高总需求（AD）。减税增加了可支配收入，提高消费（C），这也使总需求曲线右移。由于乘数效应——初始支出注入导致国民收入最终更大幅度的增加——实际的总需求移动幅度往往大于初始注入量。

6. Contractionary Fiscal Policy | 紧缩性财政政策

Contractionary fiscal policy involves reducing government spending and/or increasing taxes to decrease aggregate demand. It is used to control demand-pull inflation, which occurs when aggregate demand exceeds the economy’s productive capacity, pushing up the general price level. The aim is to cool down the economy and stabilise prices without triggering a recession.

紧缩性财政政策是指通过减少政府支出和/或增税来降低总需求。它用于控制需求拉动型通货膨胀——当总需求超过经济的生产能力时，整体价格水平被推高。其目标是为经济降温并在不引发衰退的情况下稳定物价。

For example, if the economy is growing too quickly and inflation is rising above the target rate, the government may raise income tax to reduce consumers’ disposable income, cut government spending on public projects, or introduce higher indirect taxes. These measures reduce consumption and investment, shifting aggregate demand to the left and easing inflationary pressure.

例如，当经济增长过快且通胀率高于目标水平时，政府可能提高所得税以减少消费者的可支配收入，削减公共项目上的政府支出，或开征更高的间接税。这些措施都会减少消费和投资，使总需求曲线左移，从而缓解通胀压力。

7. Effects on Economic Objectives | 对经济目标的影响

Fiscal policy affects all four main macroeconomic objectives. In terms of economic growth, expansionary fiscal policy boosts GDP growth in the short run, while contractionary policy slows it down. In terms of employment, higher government spending and lower taxes create jobs; conversely, austerity measures raise unemployment. However, fiscal policy can also have long-run supply-side effects — for example, government investment in education and infrastructure improves productivity and potential output.

财政政策影响全部四大宏观经济目标。在经济增长方面，扩张性财政政策短期内促进GDP增长，而紧缩性政策则使其放缓。在就业方面，增加政府支出和降低税率创造就业机会；相反，紧缩措施则推高失业率。然而，财政政策也具有长期的供给侧效应——例如，政府在教育和基础设施方面的投资可提高生产率和潜在产出。

Fiscal policy also influences the current account of the balance of payments. Expansionary fiscal policy may increase imports as consumers demand more foreign goods, worsening the current account deficit. Contractionary policy reduces imports, improving the deficit. Finally, fiscal discipline helps control the national debt and maintain the government’s creditworthiness, which is a long-run stability objective.

财政政策还会影响国际收支的经常账户。扩张性财政政策可能因消费者对进口商品需求增加而导致进口上升，恶化经常账户赤字。紧缩性政策则减少进口从而改善赤字。最后，财政纪律有助于控制国债规模并维持政府的信誉度，这是一项长期稳定性目标。

8. Fiscal Policy vs Monetary Policy | 财政政策与货币政策

Feature \| 特征	Fiscal Policy \| 财政政策	Monetary Policy \| 货币政策
Decision-maker 决策者	Government (Treasury/Ministry of Finance) 政府（财政部）	Central bank 中央银行
Tools 工具	Taxation and government spending 税收和政府支出	Interest rates, money supply, exchange rates 利率、货币供应量、汇率
Time lag 时滞	Long (parliamentary approval required) 较长（需议会审批）	Short (central bank acts quickly) 较短（央行行动迅速）
Targets 目标	Specific spending programmes, income distribution 特定支出项目、收入分配	Overall demand and inflation rate 整体需求和通胀率

In many countries, monetary policy is set independently by the central bank, while fiscal policy is decided by the elected government. In the IGCSE syllabus, you should be able to explain the difference between the two and recognise that they are often used together — for instance, an expansionary fiscal stance might be supported by low interest rates — although there can be conflicts between the two when, for example, the government borrows heavily while the central bank is trying to curb inflation.

在许多国家，货币政策由中央银行独立制定，而财政政策由民选政府决定。在IGCSE课程大纲中，你应能解释两者之间的区别，并认识到它们经常配合使用——例如，扩张性财政政策可能伴随低利率支持——但两者也可能出现冲突，例如政府大规模借债而央行正试图抑制通胀时。

9. Limitations and Problems of Fiscal Policy | 财政政策的局限与问题

There are several limitations to fiscal policy. First, time lags are significant: recognising an economic problem, designing a policy response, gaining parliamentary approval, and implementing the change all take time, which may mean the policy acts too late. Second, there is a risk of crowding out: if the government borrows heavily to finance its spending, interest rates may rise, discouraging private investment and offsetting the expansionary effect.

财政政策存在多方面的局限性。首先是时滞显著：识别经济问题、设计政策应对措施、获得议会批准以及实施变更都需要时间，这意味着政策可能实施得太晚。其次是挤出效应风险：如果政府大量举债以支持其支出，利率可能上升，抑制私人投资，从而抵消扩张效应。

Third, political considerations may interfere with good economic judgement — governments facing elections may be reluctant to raise taxes or cut spending. Fourth, the size of the multiplier is uncertain, making it difficult to predict the exact impact on national income. Fifth, expansionary policies can lead to persistent budget deficits and rising national debt, imposing a burden on future generations through higher interest payments and potential tax increases.

第三，政治因素可能干扰良好的经济判断——面临选举的政府可能不愿加税或削减支出。第四，乘数的大小不确定，难以准确预测对国民收入的具体影响。第五，扩张性政策可能导致持续性预算赤字和国债不断上升，通过更高的利息支付和潜在的增税，给后代带来负担。

10. Evaluation and Conclusion | 评价与总结

In evaluating fiscal policy, you should consider the context. During a deep recession, with interest rates already near zero, fiscal policy becomes the most effective tool available — this is why Keynesian economists advocate government intervention during downturns. In contrast, during a boom, contractionary fiscal policy is needed to prevent overheating. The effectiveness of fiscal policy also depends on the value of the multiplier and whether consumers respond to stimulus measures.

在评价财政政策时，应考虑具体经济环境。在深度衰退期间，当利率已经接近零时，财政政策成为最有效的可用工具——这就是凯恩斯主义经济学家主张在经济低迷时政府干预的原因。相反，在经济繁荣时期，则需要紧缩性财政政策以防止过热。财政政策的有效性还取决于乘数的大小以及消费者对刺激措施的反应程度。

There are also conflicting objectives: a policy that reduces unemployment may at the same time worsen the balance of payments, and a policy that curbs inflation may slow economic growth. For exam answers, it is essential to weigh both the positive and negative effects and to note that the appropriateness of fiscal policy depends on the state of the economy cycle. In summary, fiscal policy is a powerful but imperfect tool; its success depends on timing, the scale of the intervention, and coordination with monetary policy.

还存在着目标冲突：降低失业率的政策可能同时恶化国际收支状况，而抑制通胀的政策可能减缓经济增长。在考试答题时，必须权衡正反两方面的影响，并指出财政政策的适当性取决于经济周期的状态。综上所述，财政政策是一种强大但并非完美的工具；其成功取决于实施时机、干预规模以及与货币政策的协调配合。

Published by TutorHao | Economics Revision Series | aleveler.com

更多咨询请联系16621398022（同微信）

Fiscal Policy | 财政政策