Today, more than 70% of the world's total electricity production is supplied by power plants using conventional fossil fuels. Coal accounts for more than half of the fossil fuel combustion in electricity plants. Future mega trends give reason to believe that electricity demand will double until...

In der Diskussion um Innovationen für eine nachhaltige Entwicklung werden häufig radikale Innovationen gefordert, damit die Transformation der Gesellschaft hin zu einem als nachhaltig empfundenen System gelingen kann. Begründet wird dies mit einer höheren Umwelteffizienz dieser Innovationen....

Immigrants consist of foreigners and citizens with migration background. We analyze the wage gap between natives and these two groups in Germany. The estimates show a substantial gap for both groups with respect to natives. Discarding immigrants who completed education abroad reduces much of the...

Language proficiency may not only affect the earnings of the individual, but the probability to participate in the labor market or becoming employed as well. It may also affect selection of people into economic sector and occupation. In this paper, the effects of language proficiency on earnings...

Based on new administrative data for Germany covering entrances into job creation schemes between July 2000 and May 2001, we evaluate the effects of this active labour market policy programme on the employability of the participating individuals. The programme effects are estimated considering...

In the discussion on innovations for sustainable development, radical innovations are frequently called for in order that the transformation of society to a system perceived as sustainable can succeed. The reason given for this is the greater environmental efficiency of these innovations. This...

This paper evaluates the effects of a professionally assisted consumer-directed program (Personal Budgets) compared to the standard home care programs of the German long-term care insurance. The evaluation makes use of a long-run social experiment at seven different sites with a random...

In a long-run social experiment, personal budgets have been tested as an alternative to the home care programs of the German long-term care insurance (LTCI). Due to extending the coverage beyond LTCI approved services and agencies, personal budgets may improve care outcomes compared to the...

Current political discussions in Germany and other European countries illustrate the importance accorded to revenue and distribution effects of tax reforms. Whereas widely recognized concepts of effective tax measures can provide important insights into the incentives of taxation they do not...