Safe assets constitute an essential component of the contemporary, international financial system and are vital to its stability. As they are perceived as risk-free assets, they are a special type of financial instrument. Although the vast majority of safe assets are issued by governments, due to the increasing interdependence of economies, resulting from the liberalization of capital flows, financial openness, and the ineffectiveness of the international monetary system, issues relating to their significance, creation, and allocation are global. This book combines theoretical threads by systematizing the concept and characteristics of safe assets against the background of alternative financial instruments with empirical analyses that present trends in shaping demand, supply, price conditions, and various interdependencies in the financial markets. It shows the position and role of safe assets in the global financial sector, in the context of ongoing challenges, such as the evolution of forms of money and the processes of currency competition, the outbreak of financial and economic crises, the accumulation of foreign exchange reserves, financial innovations, the scale of securitization and monetary integration. Although safe assets are not a new category of financial assets, they are inherently connected with the evolution of money. Thus, the book examines the determinants of their creation, motives of holding, and the consequences of a shortage – all within the changing nature of the international financial system. Historical, political, and institutional backgrounds are taken into account. The book will appeal to researchers, scholars and advanced students of macroeconomics, international finance and economics, investment analysis, financial economics and econometrics.