The choice of currency denomination, indexation, and maturity structure of public debt is an increasingly important aspect of policy in a world of high debts and and financially integrated markets. This book surveys theories and evidence on public debt composition and debt returns with thegoal of emphasizing the main policy issues. The effects of debt management on financial markets, risk-sharing, policy credibility, interest costs, and taxation are evaluated within a unified theoretical framework. The analysis clarifies the trade-off involved in policy decisions and shows how to usetheory and evidence to answer practical policy problems. This book is a valuable reference to researchers and satisfies the increasing demand by policymakers for sound economic principles to guide the choice of debt instruments.