This document provides an overview of international political economy (IPE). It discusses key debates around the role of the state in domestic and international economic governance. At the international level, it examines how trade, investment and finance should be governed and the role of institutions like the IMF, World Bank and WTO. It then covers the main theoretical perspectives in IPE - mercantilism/nationalism, liberalism and Marxism. The document also analyzes influential national political economy systems like the US and Japanese models before examining core issues in IPE like international trade, investment and finance and their governing institutions.