Intro -- Contents -- I. INTRODUCTION AND SUMMARY -- II. WHAT ARE RISK PREMIUMS ON THE DOLLAR AND HOW CAN WE MEASURE THEM? -- III. CAPITAL FLOWS AND RISK PREMIUMS -- IV. EXPLAINING RISK PREMIUM MOVEMENTS -- V. CONCLUSIONS AND POLICY IMPLICATIONS -- DATA AND REGRESSION METHODOLOGY -- References.

This paper examines the roles of U.S. financial innovation, financial globalization, and the savings glut hypothesis in explaining the rise in U.S. external debt, first in a portfolio balance model, and then empirically. Perhaps surprisingly, financial deepening and falling home bias in...