The purpose of this commentary was to complement DF's study by
explaining its limitations and providing some alternative methods to
improve their suggested models. Some solution concepts, which better reflect decision makers' behavior in interactive environments,
were applied to the suggested simple games of DF to show how the
results can change if more realistic solution methods are applied.
Nevertheless, these solution methods are not the only applicable or
the best ones necessarily. More comprehensive analysis of climate
change negotiations should: 1) take the analysis out of the 2 × 2
framework; 2) pay more attention to essential characteristics of
climate change negotiations and negotiators; 3) consider the heterogeneity of players' payoff functions and powers; and 4) include the
possibility of forming coalitions, issue linkage, strategic loss, counteraction, reward and punishment, cheap talks, and playing“community”games.