Interest: Many types of actors are important, and no single interest dominates. Wealth is a common goal for many actors. Actors often have common interest, which can serve as the basis for many actors. Actors often have common interests, which can serve as the basis for cooperation. interaction: International politics has an extensive scope for cooperation. Conflict is not inevitable but occurs when fail to recognize or act on common interest. institutions: International institutions facilitate cooperation by setting out rules, providing information, and creating procedures for collective decision making. Democratic political institution increased the scope for international politics to reflect the common interest of individuals.