common world definition
common world means that there is interference between actions and goals of the agents: the effects of the action of one agent are relevant for the goals of the other: i.e. they either favour, allow the achievement or maintenance of some goals of the other's (positive interference), or threat some of them (negative interference) [Haddadi, and Sundermeyer, 1993; Castelfranchi, 1991: Piaget, 1977].