Traditional textbook analysis of international trade and labour movements typically ignores basic features of the welfare state. Similarly, the theory of finance and capital structure seldom treats international capital flows and their implications for central macroeconomic variables such as saving and investment. Under such circumstances, barriers to capital flows are undesirable. Despite the volumes that have been written on the markets and the desirability of regulating capital flows, there has been little work on the magnitude of distortions in these flows. This book fills a gap by combining elements from these disjointed parts of economics and presents them in an analytical framework. It lays the groundwork for the integration of capital, labour, and finance into a unified treatment of globalisation. The book is intended as a compact textbook for advanced undergraduate and graduate courses in international economics and public economics. It also serves as a reference for researchers and professionals.