The study intends (1) to look at the importance of individual rationality as the main principle of economic behaviour, incorporated best in the concept of "homo oeconomicus". (2) to show how the third technological revolution, the "digitalization of society", may transform individual behaviour...

In the last decades the world changed dramatically. From a global point of view three disruptive processes are on their way which can be called revolutionary: a political, a technological and an economic revolution. This paper aims to give an overview when and how these movements started what...

The building blocks of our model are bounded-rational actors with specific sets of endowments: ’entrepreneurial spirit’, human capital and venture capital. The entrepreneurial behavior to found a firm is triggered by the individuals’ endowments, their social network and the evaluation of...

Efficiency measurement naturally requires the definition of a frontier as a benchmark indicating efficiency. Usually a measure reflecting the distance of a data point to the frontier indicates the level of efficiency. One of the crucial characteristics to distinguish efficiency measurement tools...

In this position paper we deal with the conception of heterogeneity as both the force and the result of evolutionary change. We ask, how this heterogeneity can be measured empirically and how we can get a measure which allows to get a broad comparable empirical account especially on several...

In this paper we add new results to the emerging field of investigating productivity levels rather than productivity change, as initiated by Hall and Jones (1996, 1997). To obtain measures of relative productivity levels we depart from traditional growth accounting and calculate the Malmquist...

The objective of this paper is twofold. First we discuss, whether data envelopment analysis can be applied to households' consumption activities on the basis of Kelvin Lancaster's approach to consumer choice. Then, we apply data envelopment analysis to identify inefficiencies in a subsector of...

This paper reviews empirical and theoretical work concerning the relationship between innovative activities of firms and the dynamics of industries. Stylized facts on industry evolution and the analysis of industrial dynamics in general are a first building block. This discussion just reflects a...

In this paper the relatively new technique of neural nets is integrated in a traditional model of portfolio choice. On the basis of Arrow’s State Preference Model the investment decision depends on the expectation building process which consists of two components. The individual information...