The economy of the 21st century in the OECD countries and in China, is characterized by a new phenomenon: the structural surplus of private savings in relation to private investment. This is true even in a situation of prosperity and very low interest rates. On the one hand, this excess saving is due to people's increasing inclination to save in light of rising life expectancy, driven by the desire to have sufficient assets in old age. On the other hand, the demand for capital is not increasing to the same extent, so that investment is not keeping pace with the rising desire to save. The resulting gap between the private desire for wealth and private investment can only be closed by increasing public debt. This open access book offers a new, capital-theoretical perspective on the macroeconomic relationship between desired wealth and investment, and it presents new empirical data on private wealth and its composition in the OECD plus China area. The authors argue that a free economic and social order can only be stabilized if the wealth aspirations of individuals are met under conditions of price stability. This is not possible without substantial net public debt. A new way of thinking about the economy as a whole is required. By way of an in-depth theoretical and empirical analysis, the book demonstrates this new way of thinking and describes the current challenges facing economic policy. It will appeal to economists and students of economics who are interested in macroeconomic theory and its economic policy implications. An impressive, and convincing theoretical dive into the fundamentals behind secular stagnation, with very strong implications for actual debt policy. Public debt may be needed to improve welfare. - Olivier Blanchard, Senior Fellow at the Peterson Institute for International Economics and Professor of Economics Emeritus at Massachusetts Institute of Technology (MIT). Chief Economist at the International Monetary Fund from 2008 to 2015. Saving and Investment in the Twenty-First Century gives a wholly new perspective on macroeconomics. (...) Weiz sacker and Kramer describe a simple, practical solution to the underemployment that has plagued Southern Europe for more than a decade. - George Akerlof, Nobel Laureate in Economics, 2001. Professor at the McCourt School of Public Policy at Georgetown University and Professor of Economics Emeritus at the University of California, Berkeley. This is a profound and original contribution that can help us to understand and act on the great issues of our times. - Nicholas Stern, Grantham Research Institute on Climate Change and the Environment at the London School of Economics. Author of the Stern Review Report on the Economics of Climate Change. Chief Economist at the World Bank from 2000 to 2003.

Die Wirtschaft des 21. Jahrhunderts ist gepragt von einem neuen Phanomen: dem strukturellen UEberschuss des privaten Sparwillens im Verhaltnis zum privaten Investitionswillen. Dies gilt auch bei Prosperitat und niedrigen Zinsen. Das ist einerseits vom Wunsch getrieben, im Alter uber ein ausreichendes Vermoegen zu verfugen. Andererseits nimmt die Nachfrage nach Kapital im ungleichen Umfang zu, sodass Investitionen nicht mit dem steigenden Sparwillen Schritt halten. Die entstehende Lucke zwischen privatem Vermoegenswunsch und der privaten Vermoegensanlage kann nur durch eine zunehmende Verschuldung des Staates geschlossen werden. Die Kernthese des Buches lautet daher, dass eine freiheitliche Wirtschafts- und Gesellschaftsordnung nur stabilisiert werden kann, wenn dem Vermoegenswunsch des Einzelnen unter Bedingungen der Preisstabilitat stattgegeben wird. Dies ist ohne eine erhebliche Nettoschuld des Staates nicht moeglich. Ein neues Denken uber die Gesamtwirtschaft ist erforderlich. Das Buch begrundet diese neuartige Sichtweise und beschreibt die aktuellen Herausforderungen der Wirtschaftspolitik. Eine intensive Debatte uber diesen Vorstoss in volkswirtschaftliches Neuland ist zu erwarten. Hinweis: Die Softcover-Printversion ist in s/w, die Hardcover-Printversion in Farbe erhaltlich.