Lesson 13.4: Exchange Rates and Globalisation

Introduction

Welcome, students! In this lesson, we will explore the fascinating world of exchange rates and globalisation. Understanding these concepts is crucial because they affect everything from the price of your favorite imported gadgets to the jobs available in your local economy. By the end of this lesson, you will:

• Understand how a floating exchange rate is determined by supply and demand.
• Learn about appreciation and depreciation and their effects on trade.
• Explore different exchange-rate systems: fixed, floating, and managed.
• Get acquainted with the Marshall–Lerner condition and the J-curve.
• Discover what globalisation is, its causes, benefits, costs, and the role of multinationals and foreign direct investment.

Exchange Rates: Basics

What is an Exchange Rate?

An exchange rate is the price of one currency in terms of another. For instance, if 1 US Dollar (USD) is worth 0.85 Euros (EUR), we say the exchange rate is 0.85. The foreign exchange market (Forex) is where these currencies are traded.

Floating Exchange Rates

A floating exchange rate is determined by the market forces of supply and demand. When demand for a currency rises, its value appreciates (increases). When demand falls, its value depreciates (decreases).

Example:

Imagine the demand for US dollars increases because more tourists are visiting the United States. This increases the value of the dollar relative to other currencies. Conversely, if a country experiences economic instability, its currency may depreciate as investors seek safer assets elsewhere.

Supply and Demand Graph

Let’s visualize this! Here’s a basic supply and demand graph for currency:

In this graph:

• The upward-sloping curve shows the supply of USD, which increases as the price (exchange rate) rises.
• The downward-sloping curve shows demand for USD, which increases when the exchange rate falls.

The intersection of these curves determines the equilibrium exchange rate.

Appreciation and Depreciation

Appreciation

When a currency appreciates, it becomes more expensive relative to other currencies. This can have several effects:

• Exports become more expensive: If the USD appreciates, US-made products become pricier for foreign buyers, potentially leading to a decrease in exports.
• Imports become cheaper: A stronger dollar means that imports cost less, encouraging consumers to buy more foreign goods.

Depreciation

Conversely, when a currency depreciates, it becomes cheaper relative to other currencies, with the following effects:

• Exports become cheaper: A depreciation of the USD makes US products cheaper for foreign consumers, potentially boosting exports.
• Imports become more expensive: A weaker dollar means that importing goods becomes costlier, which might prompt consumers to buy domestic products.

The Current Account

The current account measures a country’s balance of trade (exports minus imports), along with income from abroad and payments made to other countries. How do appreciation and depreciation affect this?

• Higher exports (due to depreciation) may improve the current account.
• Higher imports (due to appreciation) may worsen it.

Exchange Rate Systems

Fixed Exchange Rate

In a fixed exchange rate system, a country pegs its currency to another currency or a basket of currencies. For example, the Hong Kong dollar is pegged to the US dollar. The government intervenes to maintain this rate, which can provide stability but may restrict monetary policy.

Floating Exchange Rate

As previously mentioned, a floating exchange rate is determined by market forces. This system allows for a more flexible response to economic conditions, but it may lead to volatility in currency values.

Managed Exchange Rate

A managed exchange rate system is a middle ground. Countries allow their currency to float but intervene occasionally to stabilize it. This can prevent extreme fluctuations while still allowing for some responsiveness to market conditions.

Advantages and Disadvantages

• Fixed Rates: Stability vs. limited monetary control.
• Floating Rates: Flexibility vs. risk and uncertainty.
• Managed Rates: Balance of both strengths and weaknesses.

Marshall–Lerner Condition

The Marshall–Lerner condition states that a depreciation of a currency will only improve a nation's trade balance if the combined price elasticity of demand for exports and imports is greater than one.

Price Elasticity of Demand

• If consumers are very responsive to price changes (high elasticity), a depreciation will lead to higher export revenue.
• Conversely, if they are not responsive (low elasticity), the trade balance may worsen.

The J-Curve

The J-curve illustrates the short-term and long-term effects of a depreciation on the trade balance. Initially, the trade balance may worsen as prices adjust, but over time, it improves as exports increase.

Globalisation

What is Globalisation?

Globalisation refers to the process by which businesses or other organizations develop international influence or start operating on an international scale. It has profound effects on economies, cultures, and societies.

Causes of Globalisation

1. Technological Advances: Communication and transportation have become cheaper and faster.
2. Trade Liberalization: Reduction in tariffs and trade barriers.
3. Multinational Corporations: Companies operate in multiple countries to maximize profits.

Benefits of Globalisation

• Economic Growth: Expands markets for businesses and improves efficiency.
• Lower Prices: Access to cheaper imported goods increases consumer choice.
• Cultural Exchange: Exposure to different cultures enhances global understanding.

Costs of Globalisation

• Job Displacement: Local jobs may move to countries with cheaper labor.
• Environmental Impact: Increased production can lead to greater environmental strain.
• Inequality: Benefits may not be evenly distributed, leading to wider economic gaps.

The Role of Multinationals and Foreign Direct Investment (FDI)

Multinationals establish operations in multiple countries, often seeking new markets and cheaper labor. Foreign Direct Investment (FDI) occurs when an investor from one country invests in a business in another country. FDI can help with economic growth but can also lead to concerns about sovereignty and local business displacement.

Conclusion

In summary, understanding exchange rates and globalisation is essential for grasping how our interconnected world operates. Exchange rates affect trade balances, and globalisation influences economies in multifaceted ways. As you move forward, think about how these concepts play a role in the world around you!

Study Notes

• Exchange Rate: The price of one currency in terms of another.
• Floating Exchange Rate: Determined by market forces; can appreciate or depreciate.
• Current Account: Measures trade balance and income from abroad.
• Marshall-Lerner Condition: A depreciation improves trade balance if demand elasticity > 1.
• Globalisation: Integration of economies through trade, investment, and technology.
• FDI: Investment by a company in another country for operational control.