On the Credibility Determinants of a Quality Label: a Quasi-Natural Experiment Using the Example of <Emphasis Type="Italic">Stiftung Warentest</Emphasis>

In 2013, Stiftung Warentest, which is one of the most important consumer organizations in Germany, tested hazelnut chocolate for their leading magazine called test. The hazelnut chocolate of Ritter Sport, which is a high-quality producer of chocolate in Germany, failed the test and received the grade “unsatisfactory.” Stiftung Warentest accused Ritter Sport of labelling an artificial flavouring as a natural flavouring. Ritter Sport rejected the accusation, went to court, and won the trial. Stiftung Warentest had to withdraw the issue in question of test magazine. The affair received broad media coverage from December 2013 to September 2014. Using the case Ritter Sport versus Stiftung Warentest, it is analysed whether negative headlines really undermine the credibility of a quality label by examining Stiftung Warentest and their quality label called test. In addition, it is examined what can be done to restore or, more generally, increase the credibility of a quality label. Based on a quasi-natural experiment, it is found that the negative headlines regarding Stiftung Warentest have undermined the credibility of the test label. It is also found that the credibility of the test label can be increased by providing reference values to the tests, strengthening the independence of Stiftung Warentest, and using laboratory methods for the tests. For the most part, the same holds true for any quality label. High-quality producers, quality-conscious consumers, and the awarding organization of the quality label can benefit from an increased credibility of a quality label.     

The Climate Policy of the European Union

There is now almost universal agreement that climate change, with potentially disastrous consequences, is happening and that it is contributed to by human activities. This Forum is dedicated to the discussion of various aspects of the European Union's climate policy, e.g. the EU's future role in the global effort to combat global warming, the efficiency of its climate strategy, the design of a new rule for sharing the corresponding burdens fairly among member states, and the interrelationships between the Union's climate policies, on the one hand, and its energy and transport policies, on the other. * and member of the German Advisory Council on Global Change (WBGU). The author wishes to thank Helen Bicknell (Mainz University of Applied Sciences), Oliver Deke (WBGU) and Jürgen Schmid (ISET, Department of Efficient Energy Conversion at the University of Kassel) for their helpful comments. ** This contribution is based on a Jean Monnet Lecture held at Aarhus University on 19 March 2007. The author would like to thank Harri Kalimo for valuable comments.     

The role of the private and public sector in human capital formation

While there are strong equity and efficiency reasons for subsidizing education in developing countries, the prevailing dominance of governments in the financing and provision of educational services can be questioned. There is some evidence supporting the conclusion that a partial cost recovery through user fees may reduce the rationing of services which is still a pressing problem in many low-income countries, and that private providers tend to be more cost-efficient than their public counterparts.     

Forschung und Innovation: Wo steht Deutschland?

Aufwendungen für Forschung und Entwicklung werden im Hinblick auf die internationale Wettbewerbsf?higkeit eines Wirtschafts- und Technologiestandorts als besonders bedeutsam eingesch?tzt. Wie l?sst sich der Zusammenhang zwischen Forschung und wirtschaftlicher Entwicklung empirisch nachweisen? Welchen Rang nimmt Deutschland im internationalen Vergleich der Forschungs- und Innovationsaktivit?ten ein? Welche Handlungsoptionen ergeben sich für die Wirtschaftspolitik?     

Load profiles and flexibility in operation of washing machines and dishwashers in Europe

While the energy generation system is changing towards the use of more renewable energies, the problem of how to deal with fluctuating energy supply is increasing. Smart appliances in households are often referenced as one possible solution, as their operation may be shifted in time and, thus, used to balance an unstable energy supply. The potential of such appliances has been studied to date mainly in pilot installations with a very limited number of participants or by making assumptions on what might be possible. With this work, a semi‐representative approach for 12 European countries was used to assess actual consumer habits for the use of washing machines and dishwashers which then could be used to calculate average load profiles for those appliances depending on the time of the day. Using these profiles, it is strait forward to calculate how much load may be shifted by those appliances in a demand response application. This allows aggregators or energy utilities to assign clear financial benefits to the shifting potential of those appliances. Consumers use the shifting of appliance operation already today for various reasons. Investigating these reasons allows to learn already a lot about the flexibility of consumers.