Before revision:  Our results show that inequity aversion is favored by three factors: a long time horizon over which the players try to optimize their own game, by the similarity among players in their ability of performing the resource-gathering task, as well as by the availability of resources in the environment.
After revision:  Our results show that inequity aversion is favored by three factors: a long time horizon over which the players try to optimize their own game, the similarity among players in their ability of performing the resource-gathering task, as well as by the availability of resources in the environment.