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...

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...

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...

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...

We propose using a simple Taylor rule to evaluate business cycle convergence of the Czech Republic, Hungary, and Poland with the Eurozone. Our findings indicate an ongoing convergence of those CEE countries to the Eurozone, but with instabilities and heterogeneity between the countries....

We analyse the effect of COVID-19 on the Okun's law relationship for several EU countries and the US. Results are based on regressions and a systematic DF-Beta analysis. Our results indicate that the year 2020 is an outlier in the Okun relationship. However, the direction of change is different...

Considering free-to-play games and their virtual currency exchange rate policies, we analyze the incidence of the cognitive biases "money illusion" and "decoy effect." We show that above par exchange rates and advertising bonus packs instead of price discounts in the in-game stores lead to...

We empirically evaluate the predictive power of money growth measured by M2 for stock returns of the S&P 500 index. We use monthly US data and predict multiperiod returns over 1, 3, and 5 years with long-horizon regressions. In-sample regressions show that money growth is useful for predicting...

Komplexe Aktien- und Wechselkurstrajektoren werden im Rahmen eines nichtlinearen dynamischen makroökonomischen Modells mit träger Outputanpassung am Gütermarkt und heterogener Erwartungsbildung auf den Assetmärkten abgeleitet. Die Implikationen des Aufeinandertreffens von Chartisten und...