In a Nash equilibrium, each player is assumed to know the equilibrium strategies of the other players, and no one has anything to gain by changing only one's own strategy. ~Wikipedia
situation where no individual or preference criterion can be made better off without making at least one individual or preference criterion worse off ~Wikipedia
Concept in economics and game theory that measures how the efficiency of a system degrades due to selfish behavior of its agents. Ratio between the 'worst equilibrium' and the optimal 'centralized' solution ~Wikipedia
Ratio between the best objective function value of one of its equilibria and that of an optimal outcome. ~Wikipedia
Observation that adding one or more roads to a road network can slow down overall traffic flow through it. ~Wikipedia
The Nash equilibrium may sometimes appear non-rational in a third-person perspective. This is because a Nash equilibrium is not necessarily Pareto optimal. ~ Wikipedia
Czym się różni jedno od drugiego?
However, the game introduced in this paper models a different type of conflict: flow sources do not choose between alternative paths, as these are predetermined ~Paper
Huh?
A game can have more than one Nash equilibrium. Even if the equilibrium is unique, it might be weak: a player might be indifferent among several strategies given the other players' choices. It is unique and called a strict Nash equilibrium if the inequality is strict so one strategy is the unique best response. ~wikipedia