Tool directory
Interactive economics tools
Choose the question you want to test. Each tool links back to the lesson that explains the model.
Five tools
All calculations run in your browser. Difficulty describes the economic concept, not technical skill.
Supply and Demand Simulator
Move both curves, change elasticity, and test price controls.
Inflation Purchasing Power Calculator
Separate nominal income growth from real purchasing power.
GDP Trend Explorer
Find the latest, average, highest, and lowest growth observations.
Budget Line Visualizer
Test income, prices, preferred bundles, and opportunity cost.
Interest Rate Transmission Map
Trace a policy move through borrowing, spending, jobs, and prices.