Regional economies and communities are facing increasing economic, social and cultural hardship in many parts of the world as economies adjust to the demands of the new orders of commerce and governance. A part of this is the paradox that regional economies and communities can be either enhanced or disadvantaged by information and communication technologies (ICT) products and services. The pote...

Earlier this year, European authorities agreed on the second pillar of the banking union, a single resolution mechanism, to come into effect in 2016. After the ECB taking over responsibility for bank supervision (directly for the largest, indirectly for all banks) in the Eurozone, centralizing resolution as complement for centralized supervision has been an important next step. The result is a ...

We study certain properties of derivations on semiprime rings. The main purpose is to prove the following result: let R be a semiprime ring with center Z(R), and let f , g be derivations of R such that f(x)x+xg(x) ∈ Z(R) for all x ∈ R, then f and g are central. As an application, we show that noncommutative semisimple Banach algebras do not admit nonzero linear derivations satisfying the above ...

An important observation in supply chain management, known as the bullwhip eeect, suggests that demand variability increases as one moves up a supply chain. In this paper we quantify this eeect for simple, two-stage, supply chains consisting of a single retailer and a single manufacturer. Our model includes two of the factors commonly assumed to cause the bullwhip eeect: demand forecasting and ...

A somewhat controversial but continuing trend among large divisionalized corporations is to centralize the provision of information system services in the MIS department. The objectives of centralizing all or most MIS activities are to. obtain economies of scale in the acquisition of computer hardware and to eliminate duplicate system development 191. The centralization of MIS functions, howeve...