International Relations: One World, Many Theories

Why should policymakers and practitioners care about the scholarly study of international affairs? Those who conduct foreign policy often dismiss academic theorists (frequently, one must admit, with good reason), but there is an inescapable link between the abstract world of and the real world of policy. We need theories to make sense of the blizzard of information that bombards us daily. Even policymakers who are contemptuous of theory must rely on their own (often unstated) ideas about how the world works in order to decide what to do. It is hard to make good policy if one's basic organizing principles are flawed, just as it is hard to construct good theories without knowing a lot about the real world. Everyone uses theories-whether he or she knows it or not-and disagreements about policy usually rest on more fundamental disagreements about the basic forces that shape international outcomes. Take, for example, the current debate on how to respond to China. From one perspective, China's ascent is the latest example of the ten-