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Auction Designer for a comparative-advantage trade

Built for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model. Simulate a comparative-advantage trade live below — adjust the inputs and watch it respond, right in your browser.

Game Theory (Nash)Live
Row player vs Column player
CooperateDefect
Cooperate
3
3
0
5
Defect
5
0
1
1
Nash
cyan = row payoff · green = column payoff

Controls

A Nash equilibrium is a pair of strategies where neither player can do better by unilaterally changing — the cornerstone of game theory. In the Prisoner's Dilemma both defect even though cooperating pays more; Matching Pennies has no pure equilibrium at all. Highlighted cells are the pure-strategy Nash equilibria.

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Data Inspector

GamePrisoner's Dilemma
Pure Nash equilibria1
Typedominant

Governing equation

Reading this result: The lone equilibrium has both players defect, even though mutual cooperation pays more — individually rational, collectively worse.

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Frequently asked questions

Is this good for researchers?
Yes — this version of "Auction Designer for a comparative-advantage trade" is framed for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.