Engel's law is known to be extraordinarily consistent across time and space. Accordingly, it has been widely used to determine poverty. However, also among the poorest, a certain amount of non food spending is necessary. To substantiate the distinction between necessities and luxuries, already...

Engel's law is known to be extraordinarily consistent across time and space. Accordingly, it has been widely used to determine poverty. However, also among the poorest, a certain amount of non food spending is necessary. To substantiate the distinction between necessities and luxuries, already...

A century ago, Thorstein Veblen introduced socially contingent consumption into the economic literature. This paper complements the scarce empirical literature by testing his conjecture on South African household data and finds that Black and Coloured households spend relatively more on visible...

This study analyzes the impact of entrepreneurship education at universities on the intentions of students to become entrepreneurs or self-employed in the short-term (immediately after graduation) and in the long-term (five years after graduation). A difference-in-differences approach is applied...

We investigate the role of universities as a knowledge source for regional innovation processes. The contribution of universities is tested on the level of German NUTS-3 regions (Kreise) by using a variety of indicators. We find that the intensity and quality of the research conducted by the...

We measure the efficiency of regional innovation systems (RIS) in Germany by means of a knowledge production function. This function relates private sector Research and Development (R&D) in a region to the number of inventions that have been registered by residents of that region. Two approaches...