The international economy

Welcome to the Global Village: An Introduction to the International Economy

Hello! Welcome to one of the most exciting parts of your AQA Economics course. Up until now, we’ve mostly looked at how a single country works. But in the real world, no country is an island (even if it actually is one, like the UK!). This chapter explores how countries trade, how they share wealth, and why the price of a holiday abroad keeps changing.

Understanding the international economy is vital because a crisis in one part of the world can affect your pocket tomorrow. Don't worry if this seems like a lot of information; we will break it down into small, manageable steps!

1. Globalisation

Globalisation is the process by which the world’s economies, societies, and cultures become more integrated and interdependent. Think of it like a giant spiderweb connecting every country through trade, technology, and travel.

Characteristics and Causes

Why is the world getting "smaller"?

• Trade Liberalisation: Governments are reducing taxes on imports (tariffs) and removing limits on trade (quotas), often led by the World Trade Organisation (WTO).
• Better Transport: Using giant "container ships" has made moving goods across the ocean incredibly cheap.
• Technological Change: The internet allows a company in London to hire an accountant in India instantly.
• Multinational Corporations (MNCs): These are giant companies like Amazon, Google, or Nike that operate in many different countries.

Consequences of Globalisation

Globalisation isn't "all good" or "all bad" — it depends on who you ask!

• For More-Developed Countries (like the UK): Prices for consumers are lower (your clothes are cheaper), but many manufacturing jobs have moved abroad where labour is less expensive.
• For Less-Developed Countries: It can bring in Foreign Direct Investment (FDI) and create jobs, but it can also lead to workers being exploited or environmental damage.

Quick Review: Globalisation = Integration. It is caused by cheaper transport, the internet, and fewer trade barriers. MNCs are the "engines" that drive it.

2. International Trade and Comparative Advantage

Why do countries bother trading? Why doesn't the UK just grow its own bananas in giant greenhouses? The answer lies in Specialisation.

Absolute vs. Comparative Advantage

Absolute Advantage: This is when a country can produce more of a good than another country using the same amount of resources. For example, Brazil has an absolute advantage in coffee because its climate is perfect for it.

Comparative Advantage: This is the "brain-bender" of Economics, but here is the secret: it is not about who is better at making something; it is about who gives up the least to make it.

A country has a Comparative Advantage if it can produce a good at a lower opportunity cost than another country. Even if Country A is better at making everything than Country B, they should still trade!

The "Lawyer and the Gardener" Analogy:
Imagine a Lawyer who is also the fastest gardener in town. Even though she has an absolute advantage in both law and gardening, she should still hire a gardener. Why? Because the hour she spends gardening "costs" her the £300 she could have earned doing law. The gardener’s opportunity cost is much lower. Therefore, the Lawyer should specialise in law and trade (pay) for gardening services.

Mathematical Example

Suppose the UK and France produce only Cars and Wine with 10 units of labour.

• UK: Can make 10 Cars OR 5 Wine. (Opportunity cost of 1 Car = \( \frac{5}{10} = 0.5 \) Wine)
• France: Can make 4 Cars OR 8 Wine. (Opportunity cost of 1 Car = \( \frac{8}{4} = 2 \) Wine)

The UK should specialise in Cars because 0.5 Wine is a "cheaper" cost than 2 Wine. France should specialise in Wine.

Protectionism

Despite the benefits of trade, some countries use Protectionism to shield their own industries. They do this via:

• Tariffs: A tax on imported goods. This makes foreign goods more expensive so people buy local.
• Quotas: A physical limit on how many units of a good can enter the country.
• Export Subsidies: Giving money to local firms to help them sell their goods cheaper abroad.

Takeaway: Trade allows for more total global output. Protectionism helps local jobs but usually leads to higher prices for consumers.

3. The Balance of Payments

The Balance of Payments (BoP) is like a country’s giant bank statement. It records every single transaction between one country and the rest of the world.

The Current Account

For your exam, this is the most important part. It has four main sections:

1. Trade in Goods (Visible): Buying and selling physical stuff (cars, oil, food).
2. Trade in Services (Invisible): Banking, tourism, insurance.
3. Primary Income: Profit, interest, and dividends coming back into the country from investments abroad.
4. Secondary Income: Transfers like foreign aid or payments to the EU.

Deficit vs. Surplus:
If a country spends more on imports than it earns from exports, it has a Current Account Deficit. If it earns more than it spends, it has a Surplus.

Correcting a Deficit

If a deficit gets too big, the government might try to fix it using two types of policies:

• Expenditure-Switching: Trying to get people to "switch" from imports to local goods (e.g., using tariffs or letting the exchange rate fall).
• Expenditure-Reducing: Using high taxes or high interest rates to make people poorer so they have less money to spend on anything, including imports.

Did you know? The UK has run a current account deficit for many years. We "pay" for this by selling assets (like companies or property) to foreigners, which shows up in the Financial Account.

4. Exchange Rate Systems

The Exchange Rate is simply the "price" of one currency in terms of another.

Floating vs. Fixed Rates

• Floating Exchange Rate: The price is decided by demand and supply in the market. If everyone wants to holiday in the UK, demand for Pounds (\( \text{\pounds} \)) goes up, and the exchange rate rises.
• Fixed Exchange Rate: The government or central bank picks a value and sticks to it by buying or selling their own currency or changing interest rates.

The "SPICED" Mnemonic

If the value of the Pound goes UP (Appreciates), remember SPICED:

Strong Pound, Imports Cheap, Exports Dear (expensive).

Wait! Why is this important? If exports are "Dear," foreigners buy less of them, which could make a trade deficit worse!

Summary: Floating rates act as a "shock absorber" for the economy, while fixed rates provide certainty for businesses but require the government to have lots of foreign cash in reserve.

5. Economic Growth and Development

Students often mix these up. They are related, but not the same!

• Economic Growth: An increase in Real GDP (making more money/stuff).
• Economic Development: An improvement in the quality of life (health, education, freedom).

Measuring Development: The HDI

The Human Development Index (HDI) is a better measure than just GDP. it looks at three things:

1. Health: Life expectancy at birth.
2. Education: Average years of schooling.
3. Standard of Living: GNI per capita (adjusted for what money actually buys in that country, called Purchasing Power Parity or PPP).

Barriers to Development

Why do some countries stay poor? Common barriers include:

• Corruption: Money meant for schools/hospitals is stolen.
• Poor Infrastructure: No roads or reliable electricity.
• Human Capital: Lack of education and skills in the workforce.
• Primary Product Dependency: If a country only sells one thing (like cocoa), and the world price drops, their whole economy crashes.

Strategies for Growth

Governments can choose Market-based strategies (like reducing taxes to encourage trade) or Interventionist strategies (like the government building schools and providing aid).

Quick Review: Growth = Money. Development = Well-being. HDI is the main tool we use to measure how well a country is actually doing for its citizens.

Final Checklist for Success

Before you finish this chapter, make sure you can:

• Explain why Comparative Advantage means everyone wins in trade.
• Use SPICED to explain how exchange rates affect the Current Account.
• Identify the four parts of the Current Account.
• Distinguish between Economic Growth and Development.

You’ve got this! International economics can feel big, but it’s just the story of how we are all connected. Keep practicing those numerical examples for comparative advantage, and you will be an expert in no time.