Peer-to-peer (P2P) networks comprise structures of autonomous, egalitarian nodes which collaboratively share resources without relying on central coordination mecha-nisms. Traditional networks store data and information on centralized servers, whereas computers in P2P networks act simultaneously...

In the model world with overlapping generations and uncertain life expectancy indi-viduals can live for a maximum of two periods. Only one part of each generation sur-vives the working phase and lives to enjoy retirement. The other part dies after the first half of life. Within this framework it...

The market segmentation concept, which aims at meeting the specific needs of different customer groups, has been part and parcel of marketing science for many years. Primarily the technical literature focuses on the different ways of creating segments. Up till now, the way in which companies...