seniorGame Theory
What is Nash bargaining solution?
Updated May 16, 2026
Short answer
The Nash bargaining solution is a cooperative game solution that maximizes the product of players' utility gains over disagreement point.
Deep explanation
The Nash bargaining solution selects an outcome that maximizes (U1 - d1) * (U2 - d2), where U is utility and d is disagreement payoff. It ensures fairness, efficiency, and invariance to affine transformations. It is widely used in negotiation modeling.
Real-world example
Used in salary negotiations between employers and candidates.
Common mistakes
- Confusing it with Nash equilibrium in non-cooperative games.
Follow-up questions
- What is disagreement point?
- Why maximize product instead of sum?