Jogo soma zero
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
(max_min + min_max)/2
About this calculator
The Zero-Sum Game calculator determines the theoretical value of a game where one player's gains exactly equal the other's losses. It uses the formula (max_min + min_max)/2, where 'max_min' is the highest minimum payoff a player can guarantee, and 'min_max' is the lowest maximum payoff imposed by the opponent. This result represents an ideal balance between strategies, common in competitive contexts like negotiations, auctions, or competitions.
It's useful in scenarios where the total gains and losses sum to zero, such as market strategies or disputes with limited resources. For example, in an auction, the seller aims to maximize profit while the buyer seeks to minimize cost. The calculator provides a theoretical convergence point, but note that real-world factors like emotion or unpredictability can alter outcomes.
To use it, define max_min and min_max values based on players' strategies. The result will be the game's balanced value. However, this model assumes both players act rationally and optimally, which might not always happen. Evaluate its applicability for theoretical or hypothetical contexts.
Frequently asked questions
How is the formula (max_min + min_max)/2 derived?
This formula comes from game theory, where the equilibrium value is the average between one player's safest strategy and the opponent's most aggressive approach.
In which real-world scenarios is this calculator applicable?
It's suitable for auctions, business negotiations, or strategic sports, where gains and losses directly oppose each other.
What if max_min and min_max values are equal?
If equal, the game's value is that number, indicating a perfect balance.
Does this tool account for irrational aggression?
No, it assumes both players act rationally and pursue optimal benefits.