The labor market outcomes of ethnic minorities in advanced societies and their dependenceon social relationships and membership in social networks are important empirical issueswith significant policy consequences...

In den letzten Jahren sind im deutschsprachigen Internet zahlreiche Online Communities zumThema Krebs entstanden. Sie bieten Menschen, die von einer Krebserkrankung betroffensind, die Möglichkeit zum Austausch mit anderen, ebenfalls betroffenen Personen. Über dieseOnline Communities können...

Online social networks are increasingly being used to conduct commercial activities, and many online social networking platforms allow users to sell products to their online connections. Although extensive research has been conducted on the interactions among buyers within a social network,...

The first paper is co-authored with Sylvain Delalay. We examine the impact of competition between ETFs on measures of market quality of the funds. The surge in new ETF creation has for consequence that groups of competing ETFs are increasingly crowded, and investors can choose from a multitude...