A Note on Policy Equilibrium and Generalized Metarationalities for Multiple Decision-Maker Conflicts.

We present three problems found in this paper “Policy equilibrium and generalized metarationalities for multiple decision-maker conflicts,” by Zeng et al., published in IEEE Trans. Syst., Man, Cybern. A, Syst., Humans, vol. 37, no. 4, pp. 456–463, Jul. 2007. More specifically, we show by means of counterexamples that: 1) the definition proposed for n-decision maker (DM) conflicts does not coincide with the existing generalized metarationality defined by these same authors for conflicts with 2 DMs; 2) the equivalence between generalized metarationality for 2 rounds and symmetric metarational stability is false; and 3) generalized metarational equilibrium does not imply policy equilibrium. [ABSTRACT FROM AUTHOR]