This paper describes the development of the competition of electricity retail in Europe in general and the situation in Germany in particular. The competition in the retail business has been forcing electricity retailers to spend increasing resources on marketing, sales and customer service....

Temporal database is one of the most common types of databases. Portfolio management, accounting, storage, treatment management systems, aerology systems and scheduling are applications which their data have time references. Temporal nature of data and increasing size of temporal databases due...

The economic specificity of media is that their competitiveness relies on the efficiency of their price discrimination schemes. However the discrimination schemes set up in each EU member state result from the path of regulations that have framed the domestic rollout of the media, from the start...