Interactive Economics

Explore economic models by moving sliders and watching how the graphs and economic outcomes change.

Markets and policy

Supply and Demand

Explore market equilibrium, price ceilings and floors, per-unit taxes, and subsidies. See how prices, quantities, surplus, and deadweight loss respond to policy changes.

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Competitive firms

Profit Maximization

Adjust output at a fixed market price and watch the economic profit rectangle change. Follow total profit in a second, synchronized graph and see why profit is maximized when price equals marginal cost.

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