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Chapter 2: PPF Explorer & Circular Flow
Test points on the computers-and-wheat PPF (efficient, inefficient or impossible), shift it with growth, explore bowed-out frontiers, label the circular-flow diagram, and practice with 50 quiz questions.
PlayChapter 3: Gains from Trade Simulator
The U.S. and Japan example, live: choose production, trade wheat for computers, and watch consumption move outside the PPF. Absolute vs comparative advantage, terms of trade, and 50 quiz questions.
PlayChapter 4: Supply & Demand Market Simulator
The chapter's latte market, live. Shift demand and supply with the chapter's variables, create surpluses and shortages, replay the Active Learning scenarios, and practice with 125 quiz questions you can check on the graph.
PlayPublic Goods Game
Contribute to a shared pool and discover the free-rider problem. See how individual incentives conflict with group welfare.
PlayPrisoner's Dilemma
Choose to cooperate or defect in this classic game theory scenario. Explore Nash equilibrium and dominant strategies.
PlayPrice Elasticity Explorer
Adjust prices for different goods and see how quantity demanded responds. Compare elastic, inelastic, and unit-elastic demand.
PlayTragedy of the Commons
Manage a shared resource with other players. Learn why common resources get overused without regulation or property rights.
PlayMarket Structures Quiz
Test your knowledge of perfect competition, monopoly, monopolistic competition, and oligopoly with interactive questions.
PlayAlgebra & Math Skills for Economics
Practice the core math behind economics: solving linear equations, working with slope and intercept for supply and demand lines, and calculating percent change.
PlayData Analysis Toolkit
Enter your own data to compute descriptive statistics, or paste paired values to run correlation and linear regression with a live chart.
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