If innovation is necessary to tackle the huge economic, political, and social challenges facing society, then entrepreneurship is needed to drive innovation. Both Germany and the US are not only among the most innovative, but also among the most entrepreneurially active countries in the world....

Marshall's student Pigou noted: quot;It's all in Marshall.quot; From a static point of view, this seems rather bold in a constantly changing world. However, this statement becomes more plausible in a dynamic context, where principles are subject to change. Indeed, over time, Marshall's concept...

This paper deals with a conceptual framework allowing the analysis of long-run qualitative change in the energy system. The energy sector seems to be particularly appropriate for the analysis of qualitative change due to the following reasons: The energy sector is relevant for the development of...