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Green roofs are still often seen as a pure aesthetical element in architecture, as a spleen of some “greenies”. In fact green roofs already contribute, to some extent, to a better microclimate through evaporation, filtering of dust from the air and a decrease in temperatures at the rooftop. In cities like Berlin and Munich many green roofs have already been realised. Coupled with this microclimate improvement, is the thermal comfort improvement under such roofs by more mass, dry or wet substrate, and shading through the plants. Besides improving the microclimate and the indoor climate, the retention of rainwater is another important advantage. That means an important reduction of the rainwater input in the sewage system during rainfalls, cutting the peak load, avoiding an overload of the system, which might cause flooding and serious health problems. The risk of flooding in cities, which is increasing in many cities due to a ground sealed by buildings, asphalt and concrete, can be diminished. One recent example of the use of green roofs with this purpose is the Potsdamer Platz in the centre of Berlin, where 100 percent of the rainwater has to be evaporated or used for toilet flushing on the building site. Scientific knowledge on green roofs is still limited to temperate climates, due to a development which took place in central Europe. Since 2000 a scientific project in Rio de Janeiro is checking local parameters, like possible vegetation, which can be used and substrate composition. Parallel to this, four prototype roofs, three greened and one blank, are used to measure the retention rate of the rain water and the temperature on the underside of the roofs in order to analyse the possible improvement of the thermal comfort in buildings. This paper will describe the scientific results of Germany and discuss the practicability on a larger scale under tropical conditions.

This paper aims to present an experience-based learning framework that provides a bottom-up, student-centered entrance point for the development of systems thinking, normative and collaborative competencies in sustainability.

The framework combines mental mapping with exploratory walking. It interweaves mapping and walking activities with methodological and theoretical inputs as well as with reflections and discussions. The framework aligns experiential activities, i.e. mental mapping and walking, with learning objectives, i.e. novice-level sustainability competencies. The authors applied the framework for student activities in Phoenix/Tempe and Hamburg/Lüneburg as part of The Global Classroom, a project between Arizona State University in the USA and Leuphana University of Lüneburg in Germany.

The application of the experience-based learning framework demonstrates how students started developing systems thinking (e.g. understanding urban systems as functional entities and across different domains), normative (e.g. using different sustainability principles) and collaborative (e.g. learning across disciplinary, social and cultural differences) competencies in sustainability.

The experience-based learning framework contributes to the development of curricular activities for the initial development of sustainability competencies in introductory-level courses. It enables students from different disciplinary, social and cultural backgrounds, e.g. in international education, to collaboratively start developing such competencies. The framework can be adapted to different educational contexts.

German consumers are not really like the image that the German courts present. The portrait of a helpless, debilitated, immature creature who is in need of protection so as not to be led astray by advertising is not accurate. The European Court of Justice paints the average buyer as sensible, attentive and cautious, as well as possessing the ability to analyse the message behind advertising. So, in fact, the German consumer is awake and responsive to European developments. What is needed is a balance between market freedom and the protection of consumers; including a high availability of information for these potential buyers. When the consumer is adequately informed he/she will then be in the position to reap the full benefits of a single European market. But market access is crucial. With the growth of market access and information the subsequent behaviour of the potential consumers is determined by their ability to make rational decisions once given all the information. The availability of consumer information is twofold when applied to regulating the market: the autonomy of consumers becomes the mechanism for reconciling the market freedom rights of manufacturers; and the right that the buyer possesses to have their economic interests protected.

Make a contribution on company business models and typical reactions to economic crises.

Media-analysis-based case study.

Crisis is handled through drawing on a strategy deriving from the typical features of the company; through the crisis these features are even intensified.

Multinational companies are complex and only transparent to a small degree; the empirical data therefore rests on a database with articles.

Social implications can be seen at the BMW as a functioning example for social partnership as a form of economic embeddedness at the societal level.

This paper aims to investigate how a small business is able to continually use entrepreneurial financial sources (i.e. crowdfunding) within and after a successful transformation from an entrepreneur. It additionally investigates how a market incumbent is able to successfully join the market of entrepreneurial financial resources.

Therefore, a comparative case study using qualitative and quantitative data as well as triangulation technique is conducted within the international board game (or tabletop) market at the crowdfunding platform Kickstarter. The US company CMON, which has developed from an entrepreneur to a small business and beyond, is compared with the German incumbent Pegasus. Based on an analysis of a set of key performance indicators suggested in the literature, qualitative and quantitative variables are deductively derived to measure their impact on the financial goal achievement, thereby showing their impact on the goal achievement. During the analysis, additional variables are identified inductively.

As a result, several qualitative components are found to be crucial, including oral storytelling and computer animated videos/images, a perfect multilingual product language, prototyped components, an active community and a depth and regularity in campaign updates. In quantitative terms, important components include having more product images than longer project descriptions, more optional buys than different but fixed project rewards, a big social network (on Twitter and Facebook), and the number of updates.

Based upon the data and findings, this study invites for more research, especially in conducting a larger scale quantitative analysis using the developed framework to compare more cases within a branch, cases across branches and cases with different background stories.

But to successfully run a crowdfunding campaign, entrepreneurs and incumbents can use the provided measures as a first design- and decision-roadmap, as well as copying the new business strategy of continually practicing crowdfunding for new products.

Despite its limits, this paper offers the first in-depth qualitative and quantitative crowdfunding case study showing on the one hand a new business strategy about crowdfunding as well as providing a structured measure to compare crowdfunding project performance.

The present paper takes a look at the particularities of German strategy research over the last three decades. In contrast to much of the Anglo-Saxon research, which has focused on competition as a guiding concept in theorizing about strategy, German research has typically been concerned with more fundamental questions about the general relationship between organizations and their environments and, as a result, tended to be more conceptual than empirical. Researchers have been particularly influenced by the German sociological and philosophical traditions, specifically by the critical theory of Jürgen Habermas and by the systems theory of Niklas Luhmann. Also, there are authors who draw on the economic tradition of the Austrian School in order to develop a competence-based theory of the firm. Another branch builds on Anthony Giddens's structuration theory and Jacques Derrida's philosophy of deconstruction. As we will demonstrate, much of the research has been concerned with fundamental theoretical tensions: evolution vs. planning, selection vs. compensation, cognitive–instrumental rationality vs. moral–practical rationality, etc. We note that, as a consequence, much of German strategy research shows a particular interest in paradoxa and oxymora (such as ‘planned evolution’, ‘productive misunderstandings’ or ‘unfocused monitoring’). This paper will identify and explore important strands of German strategy research and discuss its particularities compared to mainstream strategy research in the United States.

How do traditional state interests fit into a new Europe in which globalization may seem to render them irrelevant? Globalization is often thought of as undermining the sovereignty of states. States are forced to work through multilateral institutions in a globalizing world, which may seem to render states largely irrelevant. As this chapter will show, though, some countries are able to use multilateral institutions (such as the European Union, EU) as a new arena to advance their national goals. Germany is a classic example of such a state. Since its history of aggression has left the country distrusted by its neighbors, Germany has found that it can best advance its national goals by embedding them in multilateral processes – such as European integration.

The following chapter will examine this process by focusing on one case: the role of German–Polish relations in the 2004 expansion of the EU. After an introductory section, the chapter will first focus on Germany's goals, showing how it hoped that expansion would further German national interests, including its economic and security needs and the historical necessity of atoning for the Second World War. Yet Berlin also was careful to avoid overt unilateral actions, working carefully through the EU to advance its agenda. Next, the chapter will trace Germany's actions, showing how it worked to support the 2004 expansion and Poland's inclusion in it, often over the objections of some of its EU partners. Finally, the chapter will detail the outcome of the process, showing that the results were positive for both Germany and Poland, as well as for the overall cause of European integration. Thus, for the Germans at least, the seeming dichotomy between “doing good and doing well” can be reconciled. This may offer a model for other countries to follow, showing that a careful use of state power can advance national goals even in a globalizing world.

The article aims at examining the ethical limits and risks of servant leadership. During the Second World War, the German army officer Colonel Claus von Stauffenberg is a loyal servant to his nation and homeland. But when he learns about the Nazis’ mass murders and crimes, he begins to have doubts about whom he should serve. Being confronted with numerous moral dilemmas, he finally decides to join a resistance group. Of course, Stauffenberg's situation as colonel and leader was an extreme case. Time and again, however, managers and leaders are faced with similar dilemmas. Indeed, the current COVID-19-crisis shows that even today’s leaders are repeatedly faced with almost insoluble dilemmas. The recent literature about ethics and leadership suggests a philosophy which is almost portrayed as a panacea to any ethical issues: servant leadership (SL). This study, however, questions the commonly held view that SL is always ethical. The purpose of our historical case study is twofold. First, this study explores the ethical challenges Stauffenberg (and other officers) faced and how they dealt with them. Second, this study elaborates on what responses (if any) SL would provide to these challenges.

The applied method is a historical case study, in which the authors draw on a plethora of secondary literature, including books, reports, and articles.

By analyzing the historical case of “Operation Valkyrie,” this study elaborated and identified risks and limitations of SL and pointed out ways to address these risks. In particular, SL poses risks in the case of a too narrow understanding of the term “service.”

While other leadership styles, e.g. transformational leadership or charismatic leadership, have been extensively studied with regard to ethical risks, in the case of SL possible risks and limitations are still largely unexplored.

This introduction paper to the special issue on “Managing intellectual capital dimensions for organizational value creation” aims to focus on the relationships between intellectual capital (IC), innovation, performance improvement and competitive advantage in private and public organizations. The purpose of this paper is to review and underline some relevant theoretical pillars and contribute to the ongoing debate on how knowledge assets may impact organizational performance and innovation dynamics.

The paper is based on a deep analysis of the managerial literature addressing the nature, the role and the relevance of the IC dimensions for organizational value creation. The conceptual background sets the foundations for a better understanding of the strategic importance of knowledge-based value drivers for innovation and sustainable competitive advantage.

This paper provides a framework summarizing the key assumptions at the basis of a better understanding the strategic relevance of the knowledge-based value drivers for competitiveness.

The value of this paper is the definition of a conceptual framework outlining the relationships between IC management, innovation, performance improvement and value creation capacity.