🌍 Introduction: Why Do Exchange Rates Matter? Ever wondered why your vacation gets more expensive when a currency weakens? Or why companies like Apple adjust prices globally? Exchange rates impact trade, investment, inflation, and economic policy worldwide. For A-Level, IB, and IGCSE Economics students, understanding exchange rates is key to mastering currency valuation, international trade, and macroeconomic policy. This guide covers: 🔹 Nominal vs. Real Exchange Rates 🔹