In this note we compare the laissez-faire steady-state solution in the Howitt and Aghion (1998) model to the social optimum. The analysis offers several new insights in comparison to the welfare analysis in Aghion and Howitt (1992). We find various new distortions between private and optimal...

This paper provides a critique of the "unemployment invariance hypothesis", according to which the behavior of the labor market ensures that the long-run unemployment rate is independent of the size of the capital stock, productivity, and the labor force. Using Solow growth and endogenous growth...

A considerable amount of research has shown that a carbon tax combined with research subsidies may be regarded as optimal policy for encouraging the spread of low-carbon technologies for the benefit of society. The paper exploits the macroeconomic approach of endogenous growth models with...

The accumulation of new technological capabilities is of high empirical relevance, both for the development of countries and the business success of firms. In this paper, we aim to delineate strategies how these processes of capability accumulation can be considered more accurately in...

In dieser Arbeit wird ein Überblick über einige Kernaussagen der ''Neuen Wachstumstheorie'' über den Zusammenhang von Wissen und wirtschaftlicher Entwicklung gegeben. Ausgehend von der ''neoklassischen'' Wachstumstheorie wird die Bedeutung von Wissen in Prototypen endogenen Wachstums der...

We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme. When labor is scarcer it becomes more expensive and innovation investments that increase labor...