Think of trade like a school fair where each class brings snacks to share. Countries bring goods they can make cheaply (their comparative advantage) and swap for goods they need but can’t produce as efficiently.
Formula: Balance = \$Exports - Imports\$.
Example: If a country exports \$200\$ million and imports \$150\$ million, then \$Balance = 200-150 = 50\$ million.
| Country | Exports ($M) | Imports ($M) | Balance ($M) |
|---|---|---|---|
| Country A | 250 | 200 | 50 |
| Country B | 120 | 180 | -60 |
Exam Tip: When answering questions on trade, always mention comparative advantage and show the trade balance calculation if data are given. Use the formula \$Exports - Imports\$ to demonstrate understanding.
Imagine a student borrowing a textbook from a friend. That’s similar to Foreign Direct Investment (FDI), where a company from one country invests in another to build factories, open stores, or buy local businesses.
Formula: Net FDI = \$FDI{in} - FDI{out}\$.
Example: If a country receives \$300\$ million in FDI and sends out \$150\$ million, then \$Net FDI = 300-150 = 150\$ million.
| Country | FDI In ($M) | FDI Out ($M) | Net FDI ($M) |
|---|---|---|---|
| Country C | 400 | 250 | 150 |
| Country D | 200 | 300 | -100 |
Exam Tip: When discussing investment, highlight the difference between FDI inflows and outflows, and explain how net FDI can signal a country’s attractiveness to foreign investors. Use the formula \$FDI{in} - FDI{out}\$ to show your calculations.
Developed countries often focus on high-tech manufacturing and services, while developing countries may emphasize agriculture and low-cost manufacturing. Both can benefit from trade and investment, but the key is to build infrastructure and human capital to move up the value chain.
Key Takeaway: Trade and investment are like two sides of a coin – they help countries grow, but the benefits depend on how well each country uses its strengths and invests in future skills.