Dieser Beitrag untersucht, unter welchen Bedingungen Autoren ökonomisch davon profitieren können, dass sie ihre Werke unter einer Creative-Commons-Lizenz frei verfügbar machen. Methodisch werden anthropologische Techniken angewandt, die die sozialen Rahmenbedingungen in bestimmten Kulturen...

Decision trees, representing the backward recursive dynamic programming approach, are often not flexible enough to analyze real world decision problems in a risky environment. The crux is the modeling of risk. Stochastic simulation, in contrast, is a very powerful and flexible modeling tool for...

Es ist bekannt, dass analytische Lösungsverfahren bzw. die Binomialmethode bei schwierigen Optionsbewertungsproblemen nicht gangbar oder zumindest sehr aufwändig sind. In diesem Beitrag wird eine effiziente und gleichzeitig intuitive Vorgehensweise skizziert, die durch die Kombination von...

This paper focuses on the challenges associated with composing and pricing web services. We present the results of an online experiment, where subjects were confronted with a variety of choices and decisions relating to web service markets and service composition. Our analysis shows that people...

Spatial joins are join operations that involve spatial data types and operators. Spatial access methods are often used to speed up the computation of spatial joins. This paper addresses the issue of benchmarking spatial join operations. For this purpose, we first present a WWW-based benchmark...

Consumers need to feel they have control over the RFID infrastructure before they routinely trust its services.

RFID introduction is a hotly debated public policy issue. The technology enables physical environments to become more interactive and supportive by tagging each item with a chip that wirelessly communicates with a service-enriched backend infrastructure. Based on a number of user studies at...

For digital information goods, economic logic seems to demand price discrimination which in turn seems to demand an implementation in the form of Digital Rights Management (DRM). The article critiques this attitude, using the recent Sony BMG rootkit case as an example. It tries to break through...