📚 The Macroeconomic Aims of Government | 政府的宏观经济目标
In any economy, the government holds responsibility not only for providing public goods and services but also for steering the overall performance of the national economy. Macroeconomic aims are the broad objectives that governments set to guide their economic policy, such as achieving sustainable growth, maintaining full employment, and keeping prices stable. These aims provide a framework for evaluating the health of the economy and for choosing between alternative policy measures.
在任何经济体中，政府不仅需要提供公共产品和服务，还承担着引导国家经济整体运行的责任。宏观经济目标是政府为引导经济政策而设定的全面目标，例如实现可持续增长、维持充分就业和保持物价稳定。这些目标为评估经济健康状况以及在不同政策措施之间作出选择提供了框架。
1. Economic Growth | 经济增长
Economic growth refers to an increase in a country’s real gross domestic product (GDP) over time. Governments aim to achieve a steady and sustainable rate of economic growth, typically measured by the percentage change in real GDP per year. For developed economies, a target of around 2% to 2.5% annually is often considered healthy, while developing economies may aim for a higher rate to raise living standards more quickly.
经济增长指的是一国实际国内生产总值（GDP）随时间推移的增加。政府的目标是实现稳定且可持续的经济增长率，通常以实际GDP的年百分比变化来衡量。对于发达经济体而言，每年约2%至2.5%的目标通常被认为是健康的，而发展中经济体可能设定更高的目标以更快地提高生活水平。
Why is growth so important? Economic growth leads to higher incomes, more job opportunities, and greater tax revenues for the government. With rising output, firms can invest more, households can enjoy a higher standard of living, and the government has more resources to spend on infrastructure, education, and healthcare. However, growth must be sustainable — if it is too rapid, it can generate inflationary pressures and damage the environment.
为什么增长如此重要？经济增长带来更高的收入、更多的就业机会和更大的政府税收收入。随着产出的增加，企业可以进行更多投资，家庭可以享受更高的生活水平，政府也有更多资源投入到基础设施、教育和医疗保健上。然而，增长必须是可持续的——如果增长过快，就可能产生通胀压力并破坏环境。
2. Full Employment | 充分就业
The second important macroeconomic aim is full employment, also known as a low level of unemployment. In practice, full employment does not mean zero unemployment — there will always be some frictional and structural unemployment in a dynamic economy. Instead, the aim is to keep unemployment as low as possible, with many governments targeting an unemployment rate of around 4% to 5%, which is generally considered to be close to full employment.
第二个重要的宏观经济目标是充分就业，也被称为低失业率。在实践中，充分就业并不意味着零失业——在一个动态的经济中总会有一些摩擦性失业和结构性失业。相反，目标是将失业率尽可能保持在低水平，许多政府将失业率目标设定在4%至5%左右，这通常被认为接近充分就业的状态。
Unemployment is costly for both individuals and society. The unemployed lose income and may suffer from declining skills and poor mental health. Society loses potential output, and the government must spend more on welfare benefits while collecting less in income tax. Therefore, reducing unemployment is a key priority for any government aiming to improve economic welfare.
失业对个人和社会都会造成巨大代价。失业者失去收入，技能可能退化，精神健康也会受到影响。社会损失潜在产出，而政府必须在福利救济上花费更多，同时所得税收入减少。因此，降低失业率是任何旨在改善经济福利的政府的首要任务。
3. Price Stability | 物价稳定
Price stability means keeping the general level of prices steady — in other words, maintaining a low and stable rate of inflation. For example, the UK government and the Bank of England have set a target of 2% inflation, while the European Central Bank also aims for a rate close to but below 2%. Low and stable inflation encourages saving, ensures that money keeps its value over time, and helps firms plan for the future with greater certainty.
物价稳定意味着保持总体价格水平平稳——换言之，维持较低且稳定的通胀率。例如，英国政府和英格兰银行设定了2%的通胀目标，欧洲央行也将目标设定在接近但低于2%的水平。低而稳定的通胀鼓励储蓄，确保货币随着时间的推移保持其价值，并帮助企业更确定地规划未来。
High inflation is harmful because it erodes the purchasing power of money, creating uncertainty for consumers and businesses. It also damages international competitiveness if domestic prices rise faster than those in other countries, leading to reduced exports. On the other hand, deflation — a sustained fall in the general price level — can be even more dangerous, as consumers delay spending in anticipation of lower prices, causing economic stagnation. Therefore, governments aim to avoid both extremes.
高通胀是有害的，因为它侵蚀货币的购买力，给消费者和企业带来不确定性。同时，如果国内价格比其他国家涨得更快，还会损害国际竞争力，导致出口减少。另一方面，通货紧缩——总体价格水平的持续下降——可能更加危险，因为消费者预期价格下跌而推迟消费，导致经济停滞。因此，政府力求避免这两个极端。
4. Balance of Payments Equilibrium | 国际收支平衡
The balance of payments is a record of all financial transactions between one country and the rest of the world over a period of time. Governments aim to achieve a sustainable balance of payments position — meaning the current account should not run a persistent and unsustainable deficit or surplus. In the long run, a large deficit may indicate that the economy is uncompetitive, while a large surplus may suggest an over-reliance on exports.
国际收支是一国与世界上其他国家在一定时期内所有金融交易的记录。政府的目标是实现可持续的国际收支状况——即经常账户不应持续出现不可持续的逆差或顺差。从长远来看，大量逆差可能表明经济体缺乏竞争力，而大量顺差则可能表明过度依赖出口。
A persistent current account deficit can lead to a build-up of foreign debt, causing the currency to depreciate and creating further inflationary pressure. Governments therefore monitor trade figures closely and may adjust exchange rates or trade policies to improve the balance. However, it is important to note that running a deficit is not always a sign of weakness; a developing country importing capital goods to build factories may run a deficit today in order to grow faster tomorrow.
持续的经常账户逆差会导致外债累积，引起货币贬值并进一步加剧通胀压力。因此政府密切监测贸易数据，并可能调整汇率或贸易政策以改善国际收支。然而，需要注意的是，出现逆差并不总是疲弱的标志；一个进口资本品以建设工厂的发展中国家今天可能出现逆差，以便明天更快地增长。
5. Income Redistribution | 收入再分配
Another crucial macroeconomic aim is the redistribution of income and wealth to reduce inequality. A free market tends to produce an unequal distribution of income: those with skills, capital, and connections earn more, while the less advantaged may struggle to earn a decent living. Governments use progressive taxation, welfare benefits, minimum wage legislation, and public services to transfer income from the rich to the poor.
另一个关键的宏观经济目标是收入和财富的再分配，以减少不平等。自由市场往往产生不平等的收入分配：拥有技能、资本和人脉的人赚得更多，而弱势群体可能难以过上体面的生活。政府通过累进税制、福利补贴、最低工资法规和公共服务将收入从富人转移给穷人。
Redistributing income matters for both equity and efficiency. Greater equality can improve social cohesion, reduce crime, and give more people the opportunity to develop their talents, contributing to long-run growth. However, excessive redistribution can also create disincentives: high taxes may discourage work and investment, while generous benefits may reduce the incentive to look for a job. Governments must therefore strike a balance between fairness and incentives.
收入再分配对公平和效率都很重要。更大的平等有助于增强社会凝聚力、减少犯罪，并让更多人有机会发展才能，从而促进长期增长。然而，过度的再分配也会造成激励不足：高税收可能抑制工作和投资，而过高的福利则可能降低人们找工作的动力。因此政府必须在公平与激励之间取得平衡。
6. Environmental Sustainability | 环境可持续性
In recent years, environmental protection has emerged as an increasingly important macroeconomic aim. Governments now recognise that GDP growth at the expense of natural resources is not true progress. Environmental sustainability involves managing the economy so that current needs are met without compromising the ability of future generations to meet their own needs. Policies such as carbon taxes, emissions trading schemes, and investment in renewable energy are all designed to promote greener growth.
近年来，环境保护已成为日益重要的宏观经济目标。政府开始认识到以牺牲自然资源为代价的GDP增长并非真正的进步。环境可持续性指的是在经济管理过程中，满足当代人需求的同时不损害子孙后代满足其自身需求的能力。碳税、排放交易体系和可再生能源投资等政策都是为了促进更绿色的增长。
Environmental policies can create tensions with other aims. For example, stricter pollution regulations may raise production costs and reduce competitiveness, potentially slowing growth and increasing unemployment. However, the long-term social and economic costs of climate change — such as extreme weather events, flooding, and crop failures — are likely to be far greater. Many economists argue that sustainable growth is the only form of growth worth pursuing.
环境政策可能与其他目标产生紧张关系。例如，更严格的污染法规可能提高生产成本并削弱竞争力，可能减缓增长并增加失业。然而，气候变化带来的长期社会和经济成本——如极端天气事件、洪水和农作物减产——很可能要大得多。许多经济学家认为，可持续增长是唯一值得追求的增长形式。
7. Conflicts Between Macroeconomic Aims | 宏观经济目标之间的冲突
It would be ideal if a government could achieve all of its macroeconomic aims simultaneously. Unfortunately, in reality, many of these aims conflict with one another, forcing policymakers to make difficult trade-offs. The most famous conflict in macroeconomics is between low unemployment and low inflation, summarised by the short-run Phillips curve: when unemployment is low, workers have bargaining power and can demand higher wages, leading to rising inflation. Conversely, lowering inflation may require higher interest rates, which raises unemployment.
如果政府能同时实现所有宏观经济目标，那当然是理想的。但遗憾的是，在现实中，许多目标之间相互冲突，迫使决策者进行艰难的权衡取舍。宏观经济学中最著名的冲突发生在低失业与低通胀之间，可以用短期菲利普斯曲线来概括：当失业率较低时，工人具有议价能力，可以要求更高的工资，从而推高通胀。相反，降低通胀可能需要提高利率，而这又会推高失业率。
Another common conflict is between economic growth and environmental protection. Rapid growth often involves higher energy consumption and greater carbon emissions, damaging the environment. Similarly, income redistribution can conflict with economic growth if high taxes on the rich reduce their incentive to invest. Governments must decide which aims are priorities at any given time, depending on the current state of the economy. For example, in a recession, reducing unemployment may take priority over inflation control, whereas in a boom, inflation control becomes more important.
另一个常见的冲突是经济增长与环境保护之间的冲突。快速增长往往涉及更高的能源消耗和更大的碳排放，从而破坏环境。同样，如果对富人的高税收抑制了他们的投资激励，收入再分配也可能与经济增长相冲突。政府必须根据当前经济状况决定哪些目标是优先事项。例如，在经济衰退中，减少失业可能优先于控制通胀，而在经济繁荣期，控制通胀则变得更加重要。
8. The Phillips Curve and Trade-offs | 菲利普斯曲线与权衡取舍
The Phillips curve, first described by economist A.W. Phillips in 1958, shows the inverse relationship between unemployment and inflation in the short run. This curve is a key tool for governments when they face the trade-off between these two aims. If the government adopts expansionary fiscal or monetary policy — such as higher government spending or lower interest rates — aggregate demand rises, unemployment falls, but inflation increases. If it adopts contractionary policies, the opposite occurs.
菲利普斯曲线由经济学家A.W.菲利普斯于1958年首次提出，显示了短期内失业与通胀之间的反向关系。这条曲线是政府在面对这两大目标之间权衡取舍时的关键工具。如果政府采取扩张性财政或货币政策——如增加政府支出或降低利率——总需求上升，失业率下降，但通胀上升。如果采取紧缩政策，则会出现相反的结果。
However, in the long run, the Phillips curve is vertical at the natural rate of unemployment. This means that attempts to keep unemployment below its natural rate will only lead to accelerating inflation without any permanent reduction in unemployment. In other words, the trade-off exists only in the short run. Governments aiming for stable prices must therefore focus on structural policies — such as improving education and labour market flexibility — to reduce the natural rate of unemployment itself.
然而，从长期来看，菲利普斯曲线在自然失业率处是垂直的。这意味着试图将失业率维持在自然率以下只会导致通胀加速，而不会带来失业率的永久性下降。换言之，这种权衡取舍只存在于短期内。因此，以物价稳定为目标的政府必须侧重于结构性政策——如改善教育和增强劳动力市场灵活性——来降低自然失业率本身。
9. How the Government Pursues These Aims | 政府如何实现这些目标
To achieve these macroeconomic aims, governments use a combination of fiscal policy, monetary policy, and supply-side policies. Fiscal policy involves the use of government spending and taxation: for example, cutting taxes and raising spending during a recession can boost aggregate demand and reduce unemployment, while raising taxes and cutting spending can cool an overheating economy. Monetary policy involves the management of interest rates and the money supply by the central bank, either to stimulate demand or to control inflation.
为实现这些宏观经济目标，政府综合运用财政政策、货币政策和供给侧政策。财政政策涉及政府支出和税收的运用：例如，在经济衰退期间减税并增加支出可以刺激总需求并降低失业率，而增税和削减支出则可以为过热的经济降温。货币政策是中央银行通过管理利率和货币供应量，要么刺激需求，要么控制通胀。
Supply-side policies aim to increase the productive capacity of the economy by improving efficiency and incentives. These include investment in education and training, infrastructure development,
Published by TutorHao | IGCSE 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