LESSON 1 · How the Economy Actually Works
The Price Machine
Supply and demand is not just a textbook phrase — it is the invisible engine that sets prices for everything from coffee to condos. When more people want something than is available, prices climb. When shelves overflow with products nobody wants, prices drop.

Think of any auction. Bidders compete for a rare painting and the price keeps rising because demand exceeds supply. At a clearance sale, the opposite happens — surplus inventory meets weak demand, and prices fall. This simple mechanism governs trillions of transactions across the global economy every day.