The book analyzes the German welfare state. It starts from a theoretical perspective and then develops changes in social security, public health care, and unemployment insurance.

The book compares funded and unfunded pension schemes. This is done within a simple overlapping generations framework.

The authors outline a public pension reform where contribution rates are reduced to zero over a very long horizon and in a Pareto-improving fashion.

The article reports research results on funded and unfunded pension schemes in an easily accessible form.

The paper evaluates the theoretical literature on public pension schemes. First, the terms pay-as-you-go and capital reserve are made precise. These two systems are then compared, followed by a consideration of their efficiency properties. Thereafter conversion policies are discussed.

Dieser Beitrag gibt einen Überblick über den Themenkomplex "Investitionen" aus gesellschaftswissenschaftlicher Sicht. Besonderes Augenmerk liegt dabei auf der staatlichen Investitionspolitik: Der Staat kann selbst als Investor auftreten. Zudem kann der Staat versuchen,...