According to a widespread opinion, Germany is lagging behind. Many people in- and outside Germany believe that the Germans slumber through some of the most important economic trends and technological developments, especially at the incipient stages. For example Coke, color television, and...

Nowadays modern advertising environments try to provide more efficientads by targeting costumers based on their interests. Various approaches existtoday as to how information about the users’ interests can be gathered. Users candeliberately and explicitly provide this information or user’s...

In this article we provide a seminal academic investigation of mo-bile telephony consumers' perception of the recently introduced costcap tari in comparison to corresponding pay-per-use and atrate call-ing plans. Previous studies have identied several psychological eectsthrough which consumers...