An exchange rate tells you how much one currency is worth in terms of another. Think of it like a price tag on a foreign product: 1 € = 1.10 \$ means you need \$1.10 to buy €1.
Mathematically: \$E = \frac{\text{Domestic Currency}}{\text{Foreign Currency}}\$
Imagine a buffet where each dish (currency) has a price tag. In a fixed system, the chef sets the price and never changes it. In a floating system, the price changes based on how many people want the dish. In a managed float, the chef occasionally tweaks the price to keep the buffet balanced.
When the US Federal Reserve raises rates, the $ often strengthens against the € because investors seek higher returns. Conversely, if the European Central Bank cuts rates, the € weakens.
Key Terms to Know: peg, float, managed float, currency board, speculative attack, interest rate differential, purchasing power parity (PPP).
Diagram Practice: Draw a simple supply‑demand graph for a currency. Label the axes and show how a shift in demand changes the exchange rate.
Case Study: Be ready to discuss the 1992 “Black Wednesday” where the UK abandoned the ERM and the pound fell sharply.
📝 Remember: Use clear, concise language and show your calculations where possible.
| Date | System | USD/EUR | Change |
|---|---|---|---|
| 01/01/2023 | Floating | 1.10 | – |
| 03/01/2023 | Floating | 1.08 | ↓ 2% |
| 05/01/2023 | Managed Float | 1.07 | ↓ 1% |
When answering essay questions, start with a brief definition, then explain the mechanism, give a real‑world example, and finish with a short conclusion. Use bullet points for clarity if allowed.
Good luck, and remember: the world of exchange rates is like a giant, ever‑changing marketplace. Keep your curiosity alive! 🚀