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In this paper we estimate the effect of tuition fees on the intentions of high school graduates in Germany to enroll in higher education. Based on representative survey data collected by the HIS institute between 2002 and 2008, we are able to analyze the effect of tuition fees using a quasi-experimental design. We take advantage of the variation between the German federal states in the introduction of tuition fees to examine the impact of tuition fees and employ a difference-in-differences estimation strategy. We do not find empirical evidence that tuition fees lower the intentions to enroll in higher education among high school graduates. This holds true for both the whole sample and for different subgroups, such as women or high school graduates with no family background of higher education.
The majority of the annually accumulated 9 million t of organics in municipal solid waste is recycled. Amongst the technological options composting is most important. 15% are treated by digestion and result in both biogas as a renewable energy source and organic residues. Compost contains considerable amounts of minerals and organic carbon which can substitute fertilizers including organic compounds. Application of compost for the reproduction of humus in soils is its most important effect. Scientifically, the applicability of the humus balancing method developed by VDLUFA is proven. It balances input and output of organic carbon during cultivation and harvest. Optimum level of humus which is a specific fixed value for each type of soils is therefore realized. An energy humus index is proposed, which may indicate preferred usage of organics as fertilizer or renewable energy source.
Da die Gruppe der Reichen in Deutschland immer größer wird, ist es wichtig zu fragen, was mit dem Reichtum getan wird. Denn reich sein legitimiert sich auch dadurch, dass sich Menschen verantwortlich für gesellschaftliche Belange zeigen. Verantwortlichkeit drückt sich u. a. durch zeitliches oder finanzielles Engagement aus. Befunde zum philanthropischen Handeln zeigen, dass sowohl der Anteil an Personen, die sich engagieren, als auch das Ausmaß des Engagements in den letzten beiden Jahrzehnten gestiegen ist. Jedoch ist in der deutschen Literatur im Unterschied zur amerikanischen bisher wenig darüber bekannt, in welchem Umfang sich Bevölkerungsgruppen engagieren, die über hohe finanzielle Ressourcen verfügen. Zudem gibt es kaum Kenntnisse darüber, wer sich auch über den Tod hinaus für die Gesellschaft engagiert, wer also neben der Familie gesellschaftlichen Belangen finanzielle Unterstützung zukommen lässt. Anhand der Daten der Studie „Vermögen in Deutschland“ (ViD) geht der Beitrag diesen beiden Fragen für das Jahr 2008 nach. Die Befunde zeigen ein wesentlich über dem Bevölkerungsdurchschnitt liegendes Engagement reicher Haushalte und Personen. Zudem beabsichtigen 41 % aller Befragten, nach dem Tod einen Teil ihres Vermögens gemeinnützigen Zwecken zur Verfügung zu stellen.
The present paper investigates potential fiscal and distributional effects which emerge due to four reform scenarios on the German income tax rate. The analysis is based on a static simulation model for the German tax system using income tax micro-data. The data shows that changing the present progressive tax system to a flat-tax, which was proposed by the FDP in 2010, could reduce the tax revenue by 15 billion Euro. Such a tax regime would increase the unequal distribution and polarisation of net incomes. The IW Koln suggested an alternative tax rate in 2008. This regime would increase unequal distribution and polarisation of disposable incomes to a greater extent than the FDP-tax rate. An implementation of this income tax scale would go along with losses in tax revenue of 18.8 billion Euro. Likewise, the implementation of a 2009 SPD tax rate proposal would reduce tax revenue by 14.8 billion Euro. Although this regime would reduce unequal distribution, the effect on the polarization of disposable incomes is not definitely predictable. In contrast to all the other scenarios, the realisation of the recent SPD tax rate proposal from 2011 could enlarge tax revenue by 4.7 billion Euro. This tax regime would reduce unequal distribution and polarisation of disposable incomes even more than the present tax system.
Dietary records are often biased, especially those of overweight individuals. The purpose of the study was to investigate underreporting among persons of normal weight with a very high energy intake (El).
The total energy expenditure (TEE) of 16 elite athletes (BMI 24 +/- 2 kg/m(2)) and 17 controls (BMI 23 3 kg/m2) was measured using the doubly-labeled water technique (DLW, 14d). El was estimated using 2 x 3-day dietary records. Underreporters were identified by BLACK'S cut-off (El:TEE < 0.76). 44% of athletes (El: 3584 824 kcal/d; TEE: 4621 1460 kcal/d) and 29% of controls (El: 2552 680 kcal/d; TEE: 3151 822 kcal/d) were identified as underreporters. TEE explains 52% of underreporting. In summary, a high energy intake seems to strongly predict underreporting. Prevalence and magnitude of underreporting increase with increasing energy intake.
This article distinguishes methodological problems in quality evaluation and measurement in two policy fields, namely higher education and public broadcasting. Both are characterized by similar external and internal basic conditions and are thus suitable for comparative research. The difficulties of quality measurement and evaluation are discussed with respect to three main features: (1) definition of quality, (2) operationalization of quality and (3) interpretation of quality. Furthermore the identified difficulties in both areas are not always the same, because they depend on different research criteria. Thus the debates of quality measurement and evaluation in higher education and public broadcasting can learn from each other and increase the understanding of quality measurement in general. In addition the comparative design provides opportunities for the development of methods and perspectives.