The need to store data and information permanently, for their reuse in later stages, is a very relevant problem in the modern world and now affects a large number of people and economic agents. The storage and subsequent use of data can indeed be a valuable source for decision making or to...

We analyze the deficits of the German Länder for the period from 1960 to 2005 and test a number of hypotheses derived from the literature on the political economy of public deficits. Estimating a dynamic panel data model, we find evidence for political opportunism in the spirit of Rogoff and...

My goal is to prove a better data model can help us to work less. If we plan before work, we can save our resources, such as time, money, human resources and work. I would like to prove it with solving a reincurring problem: In Hungary students finishing their studies need to pass the final...

At this time there are 37 demographic surveillance system sites active in sub-Saharan Africa, Asia and Central America, and this number is growing continuously. These sites and other longitudinal population and health research projects generate large quantities of complex temporal data in order...

Buildings consume more than one-third of the world’s primary energy. Reducing energy use in buildings with energy efficient technologies is feasible and also driven by energy policies such as energy benchmarking, disclosure, rating, and labeling in both the developed and developing countries....

Given recent developments in the fields of GIS data modelling, spatial data representation and storage in spatial databases, together with wireless Internet communications, it is becoming more obvious that the requirements for developing a real time road traffic information system are being met....

This paper studies the impact of information and communication technologies (ICT), especially mobile phone rollout, on economic growth in a sample of African countries from 1988 to 2007. Further, we investigate whether financial inclusion is one of the channels through which mobile phone...

In previous research work we defined a conceptual model of a one-stop public administration and we created a prototype to illustrate it. In parallel we participate in a European research project that is developing an integrated e-government platform. In order to do so the project consortium...

"This Methodenreport systematically compiles existing datasets in Germany and explores their suitability for evaluation of sectoral minimum wages according to the German 'Arbeitnehmer-Entsendegesetz' (posted workers act). It aims at making new data sources known, assessing the potential of data...