As part of the 2019 frequency allocation process for mobile communications, the Federal Network Agency required network providers to achieve a certain level of mobile network coverage for the population. Cooperation between different network providers was also permitted for the first time, although it was not specified what forms of cooperation are permitted. Using a model, this report shows that providers ...
Using data on 4.1 million apps at the Google Play Store from 2016 to 2019, we document that GDPR induced the exit of about a third of available apps; and in the quarters following implementation, entry of new apps fell by half. We estimate a structural model of demand and entry in the app market. Comparing long-run equilibria with and without GDPR, we find that GDPR reduces consumer surplus and...
From standard portfolio-choice theory it is well-understood that background risk, overwhelmingly due to wage risk, is one of the central determinants of individuals’ portfolio composition: higher background risk reduces risky investments. However, if background risk is negatively correlated with financial market risk, higher background risk implies more risky investment. We quantify the influence of ...
Der technische Fortschritt in den Informationstechnologien eröffnet beispiellose wirtschaftliche Möglichkeiten. Durch eine drastische Reduzierung der Kosten dieser Technologien ist es heute so einfach wie noch nie, Informationen und Wissen zu akquirieren, zu kommunizieren und Produkte und Dienstleistungen zu handeln. Die damit einhergehende Umwälzung der Wirtschaft wirft zahlreiche ökonomische Fragestellungen ...
We employ a psychometrically validated performance test to study economic competence among representative sample of 1,687 early secondary school students in Southwest Germany. The rich dataset allows us to study variation in economic competence across school types and observable student characteristics. Our results show that economic competence is significantly lower among female students, migrants, ...
Finanzkompetenzen haben für die gesellschaftliche Teilhabe eine hohe Bedeutung. Dieser Beitrag führt eine empirische Evaluation der Determinanten der Finanzkompetenz von Studierenden an einer deutschen Hochschule durch. Ein weiteres Ziel ist auch die Identifizierung der geschlechtsspezifischen Unterschiede bei der Finanzkompetenz. Die Evaluierung basiert auf der Definition und den Erhebungen zur Finanzkompetenz, ...
This study is an empirical investigation of the empty nest syndrome, commonly understood as a situation where there are feelings of loss or loneliness for mothers and/or fathers following the departure of the last child from the family home. This investigation makes use of rich, longitudinal, nationally representative German data to assess whether there is evidence for such a syndrome. Furthermore, ...