In the wake of globalisation different social science disciplines have found themselves entering into similar terrains of inquiry. However, each discipline tends to draw on different and often contradictory understandings of the political, and of related notions such as power. The lack of a shared notion of politics may prevent social scientists from gaining important insights from other disciplines. In this paper I therefore seek to demonstrate that seemingly contradictory notions of politics are better seen as different forms of political interaction. I define politics as activities through which people and groups articulate, negotiate, implement and enforce competing claims. By distinguishing different types of claims made within different institutional circumstances, I outline three basic forms of political interaction: governance, stalemate and social dilemma, and give examples of how each of these forms of political interaction has emerged in response to the global integration of market in different circumstances and areas of the world.