Sub-Saharan Africa ranks among the top regions in terms of growth in the number of mobile phone users. The success of mobile telephony is attributed to the opening of markets for private players and lenient regulatory policy. However, markets may be increasingly saturated and new regulations...

In diesem Jahr steht in Deutschland die Novellierung des Gesetzes gegen Wettbewerbsbeschränkungen (GWB) an. Das Reformvorhaben hat eine intensive Debatte um die Neuorientierung der Wettbewerbspolitik in digitalen Märkten entfacht. Während es einen Konsens gibt, dass der existierende...

Information asymmetries can severely limit cross-border border expansion of banks. When a bank enters a new market, it has incomplete information about potential new clients. Such asymmetries are reduced by credit registers, which distribute financial data on bank clients. We investigate the...

Credit reporting systems are an important ingredient for financial markets. These systems are based upon the unique identification of borrowers, which is enabled if a compulsory identification system exists in a country. We present evidence derived from difference-in-difference analyses on the...

It is increasingly observable that in different industries competitors jointly acquire and share customer data. We propose a modified Hotelling model with two-dimensional consumer heterogeneity to analyze the incentives for such agreements and their welfare implications. In our model the...