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We obtain the optimal pricing policy of a monopolist marketing successive generations of product advances. We characterize the impact of foresight regarding entry of the second generation product and the technological substitution and market expansion created by the introduction of the second generation product on the optimal pricing policy of the monopolist. We also obtain the optimal pricing ...

Economic Preferences and Attitudes of the Unemployed: Are Natives and Second Generation Migrants Alike? In this paper we study the economic effects of risk attitudes, time preferences, trust and reciprocity while we compare natives and second generation migrants. We analyze an inflow sample into unemployment in Germany, and find differences between the two groups mainly in terms of risk attitud...

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In the first part of this paper we argue that the terms "multimedia" and "hypermedia" need redefining to reflect latest developments in converging technology. We propose new forms of "interactive" and "annotated" movies, to be created using advanced digital techniques. In the second half of the paper we suggest that some of the problems that users of Internet are currently experiencing are due ...

Since we first devised and defined password-capabilities as a new technique for building capability-based operating systems, a number of research systems around the world have used them as the bases for a variety of operating systems. Our original Password-Capability System was implemented on custom built hardware with a novel address translation and protection scheme specifically designed to s...

In the current public consultation regarding “Licensing of Mobile Services on Expiry of Existing Licenses for Second Generation Mobile Services”, there are voices calling for a specific 3G standard in order to facilitate the development of mobile data communications. In the viewpoint of this author, this may imply that Hong Kong will give up its decades-long technology neutral stance in licensi...

This paper describes a NLG system, developed by students at Heidelberg University, that generates instructions that direct users through virtual environments. The NLG architecture is implemented as a modular pipeline consisting of elementary components. The system has been developed for participation in the 2nd installment of the Generation Instructions in Virtual Environment (GIVE) challenge.