Power is an international relations concept. The effects of international power determine the extent that actors in the international arena can control their own fate and circumstances. In a report for the International Organization Foundation, Michael Barnett and Raymond Duvall present four types of international power that include compulsory power, institutional power, structural power and productive power. Compulsory power occurs when one actor directly exerts control over another. Institutional power is indirect power that actors exercise over through diffuse relationships. Structural power derives from the relative structural capacities of international actors. Productive power derives from the extent that society exerts power with diffuse social processes such as discourse and knowledge systems.
Polarity
Polarity is an international relations concept concerned with the distribution of power within the international system. One state has most of the cultural, economic and military influence in unipolar international systems such as the Roman Empire prior to 401 B.C. or the United States immediately after the fall of the Soviet Union. Two states have the majority of international or regional economic, military and cultural influence in unipolar international systems such as the United States and Soviet Union during the Cold War. More than four states have military, cultural and economic influence that is almost equal in multipolar international systems. Complex international economic interdependence in the 21st century may establish a multi-polar international system.
Interdependence
Interdependence is an international relations concept concerned with the extent that economic, social and environmental development throughout the world depends on cooperation among members of the international arena. For example, globalization drives international economic interdependence, because globalization integrates economic activities among members of the