In this paper I will focus exclusively on opportunity in the narrow sense and therefore on the origin of the required knowledge. For the purpose of this paper an opportunity exists when all reqiured elements of knowledge are "out there" and await the arrival of a keen entrepreneur to recognize,...

It is obvious that the German economy exhibits a significant decline in economic growth during the last two decades. Although the German economy has still to overcome the burden of the reunification in 1990 it is shown that this burden might be only one reason of this decline. In this study we...