Unternehmen erstellen komplexe Güter und Dienstleistungen im Allgemeinen nicht alleine, sondern arbeiten mit anderen Unternehmen zusammen. Dabei stimmen sie sich vielfach durch nicht-marktliche Koordinationsformen wie inner- und zwischenbetriebliche Kooperationen ab. Gleichzeitig steigt die...

Unternehmen erstellen komplexe Güter und Dienstleistungen im Allgemeinen nicht alleine, sondern arbeiten mit anderen Unternehmen zusammen. Dabei stimmen sie sich vielfach durch nicht-marktliche Koordinationsformen wie inner- und zwischenbetriebliche Kooperationen ab. Gleichzeitig steigt die...

That institutions matter is widely accepted among economists and so are social norms as an important category of informal institutions. Social norms matter in many economic situations, but in particular for markets. The economic literature has studied the interrelation between markets and social...

That institutions matter is widely accepted among economists and so are social norms as an important category of informal institutions. Social norms matter in many economic situations, but in particular for markets. The economic literature has studied the interrelation between markets and social...

In this paper, we study the rational for an incumbent to launch a second brand when facing potential entry in a market with quality differentiated products and a fringe producer. Depending on market size, costs for a second brand and a potential entrant’s setup cost the incumbent might use a...

The thesis considers an investor's problem of optimal consumption and portfolio choice in a financial market. The model used for the financial market is the semimartingales model. The thesis shows that an optimal solution to this problem exists, even if the investor is contrained in the...

In this paper, we study the rational for an incumbent to launch a second brand when facing potential entry in a market with quality differentiated products and a fringe producer. Depending on market size, costs for a second brand and a potential entrant's setup cost the incumbent might use a...