Leniency programs as a tool for cartel detection and cartel destabilization, have been implemented since the early nineties. Theoretical work has shown that leniency programs can be effective in enhancing cartel detection and deterrence, but these effects are not straight-forward. It is even...

For more than a decade the unbundling of telecommunications networks has been used as a regulatory means to stifle competition. However, despite its assumed positive effects on market entry and competition intensity, the negative effects on network investment incentives are widely shown in the...

For more than a decade the unbundling of telecommunications networks has been used as a regulatory means to stifle competition. However, despite its assumed positive effects on market entry and competition intensity, the negative effects on network investment incentives are widely shown in the...

I analyze a quasi-natural experiment of fiber broadband rollout in a rural German area. The analysis particularly investigates the impact on real estate values. I find that there are strong and significant effects of fiber broadband deployment. These indicate that there are relevant personal...

We provide a structured overview of the quantitative literature on the economic impacts of telecommunications networks and broadband internet. Differentiating between wireline and wireless technologies as well as broadband availability and broadband adoption, respectively, we review studies...

We provide a structured overview of the quantitative literature on the economic impacts of telecommunications networks and broadband internet. Differentiating between wireline and wireless technologies as well as broadband availability and broadband adoption, respectively, we review studies...

In response to strong revenue and income losses that a large share of the self-employed faced during the COVID-19 pandemic, the German federal government introduced a €50bn emergency aid program. Based on real-time online-survey data comprising more than 20,000 observations, we analyze the...

In response to strong revenue and income losses that a large share of the self-employed faced during the COVID-19 pandemic, the German federal government introduced a €50bn emergency aid program. Based on real-time online-survey data comprising more than 20,000 observations, we analyze the...