Although they share some assumptions, neorealism and neoliberalism differ in several respects. First, both approaches assume that international system is “anarchic.” However, while neorealists claim that foreign policy is constrained by anarchy, neoliberals argue that international regimes, globalization, and international interdependence are important tools for managing the relations between international actors. Second, neorealists believe that international cooperation depends on the will and power of nation states; from this perspective, it is difficult to achieve and maintain international cooperation mainly because states strive to achieve their own interests. On the other hand, neoliberals hold that if states have mutual interests in a given issue area of international relations, international cooperation can be achieved in that issue area. Third, neorealists emphasize the importance of relative gains (zero-sum game) in international politics. Neoliberals, however, consider that international actors have common interests so that they can cooperate in a given issue area and maximize their absolute gains