WOLFGANG FRANKE 1912–2007

Franke and Wolfgang Leininger On the Effi cient Provision of Public Goods by Means of Lotteries

We provide a solution to the free-rider problem in the provision of a public good. To this end we defi ne a biased indirect contribution game which provides the effi cient amount of the public good in non-cooperative Nash equilibrium. No confi scatory taxes or other means of coercion are used. We rather extend the model of Morgan (2000), who used fair raffl es as voluntary contribution schemes,...

Franke and Moses

Nikolaus Franke*, Eric von Hippel**

The “lead user construct” was developed to preferentially identify commercially attractive innovation-related information developed by users of products and services. In this empirical study of user modifications to Apache web server software, we further develop and test lead user theory by studying the independent and combined effects of two key component variables. We find that one component ...

Wolfgang Wahlster

In face-to-face conversation humans frequently use deictic gestures parallel to verbal descriptions for referent identification. Such a multimodal form of communication is of great importance for intelligent interfaces, because it simplifies and speeds up reference to objects in a visual context. Natural pointing behavior is very flexible, but possibly ambiguous or vague, so that without a care...

Misconduct WOLFGANG

Internet and CD-ROMs are now important sources of scientific research. Obviously, these computerized tools complement and supplement libraries. For some they seem to replace libraries, and web presentations of published works are used as seemingly infinite resource of texts for term papers, examination work and even research papers. There is evidence that the use of modern information technolog...