<Ul> <Li> Quasi-perfect equilibrium, a refinement of Nash Equilibrium for extensive form games due to Eric van Damme </Li> <Li> Sequential equilibrium, a refinement of Nash Equilibrium for extensive form games due to David M. Kreps and Robert Wilson </Li> </Ul> <Li> Quasi-perfect equilibrium, a refinement of Nash Equilibrium for extensive form games due to Eric van Damme </Li> <Li> Sequential equilibrium, a refinement of Nash Equilibrium for extensive form games due to David M. Kreps and Robert Wilson </Li> <Li> Symmetric equilibrium, in game theory, an equilibrium where all players use the same strategy </Li>

Where is there equilibrium and of what type is it