Prognose der Day-Ahead Wind- und Photovoltaikstromerzeugung – Einflussgrößen und Zuverlässigkeit

In the future, the percentage of renewable energies in the electricity generation is expected to increase continuously. Especially weather-dependent wind and solar power plays a substantial role. These energy sources are partly characterized by a fluctuating and imprecisely predictable power generation. To cover the residual load and to balance the forecast errors a rising number of flexible producers and consumers will be needed in the future. This is necessary to ensure the high security of supply of the German electricity grid.Against this background, the objective of the following investigation is to analyse the day-ahead forecasting quality of the feed-in from wind and photovoltaic systems in the control areas of Germany’s transmission system operators and in the entire area of Germany for the years 2010 to 15. The aim of this analysis is to identify the crucial parameters that influence the forecast error. Subsequently, the share of the wind and photovoltaic power forecast which can be considered as reliably predictable for the following day is estimated. In addition, the increase in this reliable prediction through a higher level of detail in the assessment of the forecast error is quantified. Based on these results, the need of flexibilities through the weather-dependent electricity supply from wind and photovoltaic systems can be estimated, and the impact on the electricity system can be evaluated.     

Das Fach Kommunikationswissenschaft

Communication Science appears to become more and more professionalized and seems to increase its research activities and publications. Yet there are no far empirical data to support what seems to be evident. In a survey among DGPuK members in 2010, Altmeppen et al. (2011) found a status quo that shows two interesting aspects: German Communication Science has extended its research activity and, at the same time, differentiated itself substantively and methodically. The data also show that the survey instrument used in the past does not grasp the discipline’s thematic, theoretic, and methodical diversity any more. This finding is a challenge to the field: Communication Science must find a way to systematize and structure itself in order to gather all thematic and methodic directions under one umbrella, considering both the broad avenues and the side roads. Based on the 2010 data and the existing survey categories, this paper develops an empirical instrument that can be used to examine, in a long term design, the research activities in Communication Science and demonstrate, to the discipline itself and to outside observers, its multifarious facets and its dynamic.     

Impact of health-related claims on the perception of other product attributes

New EU legislation (EU Regulation 1924/2006) will allow a number of nutrition and health claims in food products. The objective of this research was to study how health claims affect consumers’ perception of other product attributes. A survey with a total of 4612 respondents from the Nordic countries explored consumers’ perceptions of attractiveness, healthiness, naturalness, tastiness and ability to reduce risk of disease by comparing ratings of products with and without health claims. Used claims varied in their benefit, active ingredient, claim structure and framing. The results showed that health claims had a moderate but mostly negative impact on the perception of other product attributes; the most significant impact was decrease in perceived naturalness. Consumers could also interpret the benefits in claims as intended. The wording of the claim had only small impact on the perception of the products, whereas earlier market presence of the ingredient had a large impact: differences among the Nordic countries reflected the previous exposure to health claims. The findings from this study suggest that consumers do not imply other health benefits from health claims and the health claim per se is not likely to cause any unrealistic positive inferences in perceived product quality.     

The antecedents of charity trust and its influence on charity supportive behavior

This study develops and tests a model that evaluates eight antecedents of charity trust and its influence on volunteering and donating. Secondary data from a national Australian survey (N = 1,377) was collected and data was analyzed using partial least square path analysis. Key findings include identifying individual and organizational antecedents of charity trust and its influence on charity supportive behavior. Results show that organizational transparency is a very strong antecedent, followed by the individual awareness level of an individual towards the organization. We also examined the effect of gender as a moderating influence but did not find a significant effect. We conclude with managerial implications and areas for future research.     

Voluntary Adopters of Integrated Reporting – Evidence on Forecast Accuracy and Firm Value

This study investigates how integrated reporting (IR) creates value for investors. It examines how providers of financial capital benefit from an improved firm information environment provided by IR. Specifically, this study investigates the effect of voluntary IR disclosure on analyst earnings forecast accuracy as well as on firm value. To do so, we use an international sample of 167 listed companies that voluntarily publish an integrated report. Our analysis shows no significant effect of a voluntary IR publication on analyst earnings forecast accuracy and no significant effect on firm value. We thus do not find evidence for the fulfillment of IR's promises regarding improved information environment and value creation of voluntary adopters. We conclude that such companies might already have a relatively high level of transparency leading to an absent additional effect of IR disclosure. Positive effects of IR appear to be more relevant in environments where IR is mandatory.     

Participative backcasting: A tool for involving stakeholders in local sustainability planning

This paper reports on the use of a backcasting approach with local stakeholders in five European cities where several Images of the Future were formulated for household consumption in sustainable cities. The aim was to find methods for inspiring local stakeholders to participate in discussions about sustainability with a long-term perspective. Previous exercises of similar kinds have mainly involved experts. A method based on workshops and back-office work was developed and is described and analysed here, together with the results obtained. The outcomes in terms of ideas, votes and dimensions are also discussed. The findings suggest that the method worked reasonably well, with the process quality receiving the highest ratings. The quality of outcomes was perceived as less reliable. Adaptations should include more efforts to recruit participants with varied backgrounds and more innovative approaches for liberating subjects’ minds during the time travel stage of the process. The outcomes obtained show that there appears to be a common set of popular ideas for more sustainable everyday city life in the EU, including more local and organic food, a greener environment, better public transport and opportunities for non-motorised transport and reorientation of values.     

Knowledge dynamics in setting sustainable standards in tourism – the case of ‘Fair Trade in Tourism South Africa’

The development of standards and certification programmes in global tourism has gained importance in the production-consumption-nexus. This paper deals with the ‘Fair Trade in Tourism South Africa’ standard, one of the first innovative service standards with a focus on the social dimension of sustainability. Until now, there has been little detailed exploration in the evolutionary trajectories of sustainable tourism standards from a knowledge-based perspective. This paper contributes to a deeper understanding of standard creation in global–local interaction processes over time and its impacts on the micro level of firms. Conceptually, it builds on two scientific debates: the neo-institutional approaches in organisational theory focusing on institution building and the research on innovation and knowledge dynamics. Empirically, it is based on 32 interviews conducted with different actor groups.     

Examining the win-win proposition of shared value across contexts: Implications for future application

This article examines the concept of creating shared value (CSV) as articulated by Michael Porter and Mark Kramer, in non-Western and Western contexts. We define non-Western contexts as those in so-called “developing” countries and emerging economies, whereas Western ones pertain to dominant thinking in “developed” regions. We frame our research in postcolonial theory and offer an overview of existing critiques of CSV. We conduct a critical discourse analysis of 66 articles to identify how CSV is being cited by authors, and potential underlying power dynamics that affect its relevance for non-Western contexts. Our review exposes increasingly critical views about the paradoxical positioning of CSV as an instrumental concept that can offer “win-win” solutions, particularly from those working in non-Western settings. Western perspectives generally tend to be more supportive of its instrumental nature, but also recognize the increasing complexity of the business-society nexus and stakeholder engagement. We argue that the CSV framework requires further development to maintain credibility and applicability, especially in non-Western domains.     

Organizational climate for innovation and creativity – a study in Swedish retail organizations

ABSTRACT

Innovation in retailing is under-investigated in academia and yet a highly relevant concern given the current changes in the retail landscape. Although retailing is often characterized by a dynamic and highly competitive environment, retail organizations are not often considered as ‘innovative,’ at least when compared with manufacturing industries, or when using existing innovation frameworks in academic literature. There are many aspects of innovation discussed in literature and a need to consider different ways of looking into retail’s innovativeness. Among them, the importance of organizational climate on influencing creativity and innovation may help explain how to enable innovation in service organizations, such as retailers. The purpose of this study is to evaluate the climate for innovation and creativity and examine how retail organizations perceive it. We applied a mixed-methods approach using an established organizational climate survey and semi-structured, one-on-one interviews regarding the innovation climate and other aspects of innovation management in the companies. The study shows that despite retail organizations still struggling to incorporate innovation on a strategic level and move beyond incremental developments in their operations, retailers score positively on being innovative regarding certain dimensions of the organizational climate survey. This indicates that retailers (especially conventional ones) could benefit from challenging current practices and moving towards becoming more active and strategic innovators since their organizational climate to a certain extent allows for it. Respondents within the organizations also express a need for better innovation support, whether it is through established structures and processes or an improvement in the current conditions of the organizational climate. How retailers could enable themselves to become more active innovators – based on what we know that retailers look more towards entrepreneurship and continuous development as a driving force rather than formalized innovation practices per se – is a potential avenue for further research.