For Educators · Monopoly Pricing
Monopoly Pricing for a tragedy of the commons
Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a tragedy of the commons live below — adjust the inputs and watch it respond, right in your browser.
Monopoly PricingLive
market power & deadweight loss
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Presets
A monopolist maximizes profit where marginal revenue equals marginal cost — then charges the price the demand curve allows. Because MR lies below demand, the monopoly produces less and charges more than a competitive market (where price equals MC). The red triangle is the deadweight loss: mutually beneficial trades that never happen.
Data Inspector
Monopoly price$65.0
Monopoly qty35.0
Competitive qty70.0
Deadweight loss613
Profit1225
Governing equation
Reading this result: At MC = $30, the monopolist makes 35 units and charges $65 — a $35 markup over cost. That output is exactly half the competitive 70, and the shaded triangle (613) is the welfare lost to that restraint.
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Frequently asked questions
- Is this good for educators?
- Yes — this version of "Monopoly Pricing for a tragedy of the commons" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.