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Economics topics
Every PlayEcon topic pairs a short, readable explainer with an interactive lab. Pick one to read the intuition, then open the app to drag the curves yourself.
MICROECONOMICSSupply & demand
How price and quantity find equilibrium — and what shifts each curve.
Elasticity
Price elasticity of demand and supply, total revenue, and tax incidence.
Costs & firms
Marginal cost, marginal revenue, and the profit-maximizing quantity.
Price controls & double shifts
Two shocks at once, price ceilings and floors, and the total revenue test.
Market structures
Perfect competition, monopolistic competition, monopoly and regulation.
Scarcity & comparative advantage
Opportunity cost, the production frontier and gains from trade.
Diagnosing price changes
Demand or supply? Read the clues and name the curve that moved.
GDP & growth
What gross domestic product measures and how its components add up.
Inflation
Why the price level rises, how it's measured, and who it hurts.
Monetary policy
How a central bank uses interest rates to steer inflation and jobs.
Spending multiplier
MPC, the multiplier, equilibrium output and closing gaps.
Money & banking
The money market, central bank tools, bond prices and the deposit multiplier.
Economy simulator
Run the central bank and treasury and try to land a soft landing.
Blog
Longer walkthroughs with worked examples, diagrams and self-test questions.
The shape of scarcity
Opportunity cost, the production frontier and comparative advantage, worked end to end.
Learn by playing, not memorizing
Open the interactive labs, simulators and market whodunits.
Open PlayEcon →