Neoliberalism (international relations)
In the study of international relations, neoliberalism refers to a school of thought which believes that states are, or at least should be, concerned first and foremost with absolute gains rather than relative gains to other states. Although both theories use common methodologies—including game theory—neoliberalism is not the same as neoliberal economic ideology.
Activities of the international system
Neoliberal international relations thinkers often employ game theory to explain why states do or do not cooperate; since their approach tends to emphasize the possibility of mutual wins, they are interested in institutions which can arrange jointly profitable arrangements and compromises.
Neoliberalism is a response to Neorealism; while not denying the anarchic nature of the international system, neoliberals argue that its importance and effect has been exaggerated. The neoliberal argument is focused on the neorealists' underestimation of "the varieties of cooperative behavior possible within ... a decentralized system." Both theories, however, consider the state and its interests as the central subject of analysis; neoliberalism may have a wider conception of what those interests are.