Any wealth tax design needs to resolve the question of who should pay it How wide net be cast? Setting high or low exempt thresholds affects avoidance behaviour and may influence whether one by reference household (and if so how that defined) simply on each individual owns over a certain threshold. Typically, taxes in other countries have not been imposed non-residents except relation real prop...

System security is a key technology to the development and deployment of IT applications and services in a growing global network. Security is critical at various levels of the system. However, security solutions typically address a very specific vulnerability with little relation to the larger picture of secure information systems. Organisations have successfully implemented these solutions wi...

This paper gives an overview of how boxes are created in PWGL. PWGL is a visual language based on Common Lisp, CLOS and OpenGL. PWGL boxes can be categorized as follows. Simple boxes define the basic interface between PWGL and its baselanguages Common Lisp and CLOS. Visual editors constitute another important subcategory of PWGL boxes. Finally, more complex boxes can be used to create PWGL appl...

In HCI research there is a body of work concerned with the development of systems capable of reasoning about users’ attention and how this might be most effectively guided for specific applications. The design of systems capable of assessing user attention, evaluating the effectiveness of focus of attention and capturing, shifting or maintaining attention, would best be informed by the literatu...

Market design concerns the creation of transaction rules, effectively an automated intermediary. I extend the work of Vives (1998), finding that, for moderately sized auction markets, coordination is more important than strategic behavior in determining efficiency. Second, with Cournot competition, small firms tend to win auctions for capacity. Third, standard auctions of licenses (right to com...

The purpose of this article is to survey the landscape of user-centered design in LIS. We begin the article by exploring the history of the “user-centered paradigm,” looking first at the historical schism between behavioral science and computer science, and then surveying some of the methods of user-centered design. In the next section we present examples of technological artifacts that reflect...

This paper shows occurring issues and existing design solutions in the field of cross-device interaction. Despite an ever-growing access to different devices, the interaction between them in the proximity is still cumbersome and hence an interesting subject for research. First, nearby devices have to be discovered to establish a connection, which is not only a question of technology but also a ...