Digitalization is a set part of today's society and even luxury brands feel the increasing need of a digital presence. More than half of all consumers of luxury goods buy them online on a regular basis. The luxury fashion brand Chanel still abstains from offering their most important items in...

Debit cards are overtaking credit cards as the most prevalent form of electronic payment at the point of sale, yet the determinants of a ubiquitous consumer choice - "debit or credit?" - have received relatively little scrutiny. Several stylized facts suggest that debit-card use is driven by...