Companies which offer ‘free-to-play’ video games have to optimize the in-game-shop in order to generate revenues. Price differentiation is one possibility to optimize the profitability of the game. For example, Fortnite—the most successful video game in terms of revenues—offers uniforms...

Klappentext: Die Außenwirtschaftstheorie beschreibt und erklärt die wirtschaftlichen Beziehungen zwischen verschiedenen Ländern, wobei im Zentrum der "realen Theorie" der Handel steht und im Zentrum der "monetären Theorie" Zahlungsbilanz, Volkseinkommen, Wechselkurse, Zinsen und Preise. -...

We describe the development of the market for mobile payments in Denmark. In the first step, we explain the two main competing products as well as their underlying technologies. In the second step, we also analyze the competition within the Danish market from debit card companies and the...

A game-theoretic setting is used to illuminate the conflict between vaccination proponents and vaccination opponents. A central result is that vaccination proponents could in principle persuade vaccination opponents to vaccinate by means of subsidization. Such a subsidy could increase benefits...

Since the ECB has lowered the interest rate on deposits into negative territory, more and more commercial banks are also passing on this negative interest rate to their customers. The main aim of this paper is to answer the question under which conditions the commercial banking sector will be...

Seit die EZB den Einlagezins in den negativen Bereich gesenkt hat, gehen auch vermehrt Geschaftsbanken dazu uber, diesen negativen Zins an ihre Kunden weiterzugeben. In diesem Beitrag wird zunachst geklart, unter welchen Umstanden Sichteinlagen und Uberschussliquiditat entstehen und welche Rolle...

Fortnite is the most successful video game in terms of revenues generated. Since it belongs to the 'free-to-play games', the company has to optimize the in-game-shop to generate revenues. Product dif- ferentiation is one possibility to optimize the profitability of the game. In this paper, we...