Auswirkungen von Hartz IV auf die Mobilität und Wohnungsversorgung der Mieter

Im Hartz IV-Gesetz, das zum 1. Januar 2005 in Kraft trat, wurde unter anderem geregelt, welche Wohnraumstandards für Hartz IV-Empf?nger angemessen seien. Schon vor Inkrafttreten des Gesetzes kam es zu einer kontroversen Diskussion darüber, ob und in welchem Umfang Zahlungsempf?nger auf Druck der Beh?rden umziehen müssen. Wie hat sich die Haltung der Beh?rden im ersten Geltungsjahr entwickelt? Ist es in einem erheblichen Umfang zu erzwungenen Umzügen gekommen?     

Brand Community Members as a Source of Innovation

Brand community members have a strong interest in the product and in the brand. They usually have extensive product knowledge and engage in product‐related discussions; they support each other in solving problems and generating new product ideas. Therefore, brand communities can be a valuable source of innovation. So far, little is known about the member's ability and willingness to participate in a company's innovation process. How does passion for the brand, affiliation to the brand community, and trust in the brand affect the willingness to engage in a company's innovation process? What is the effect of brand passion on brand knowledge and on domain‐specific skills, which are considered important prerequisites for qualified and creative contributions to new product development? What is the effect of personality traits on the willingness and ability to engage in new product development? This research addresses these questions, which are interesting for managers who are thinking about opening up their innovation process and collaborating with brand communities and for academics exploring the opportunities of online communities for new product development and trying to develop promising new forms of open innovation networks. Drawing on brand community literature, relationship theory, creativity theory, and personality traits research, this paper introduces a comprehensive set of antecedents affecting brand community members' willingness to engage in new product development. It is argued that consumer creativity, identification with the brand community, and brand‐specific emotions and attitudes (passion and trust) as well as brand knowledge are important determinants of consumers' willingness to share their knowledge with producers. The paper also identifies two personality traits (i.e., extraversion and openness) that have significant influence on brand passion, creativity, and identification with the community. The hypotheses are tested on a sample of 550 members of the Volkswagen Golf GTI car community. Structural equation modeling was used to test the relationship among the constructs. Though a positive disposition toward a brand may be advantageous for consumers that are willing to interact with producers during new product development, our results show that it is consumer interest in innovations and the innovative process that drives them to get involved. Further, brand community members with more knowledge and more innovative skills seem to be more willing to contribute than less qualified community members.     

A Case for Economic Capital as a Pillar 1 Regulatory Tool

Regulatory capital – as a tool for financial regulation – has come under scrutiny following the financial crisis of 2007‐2010 in terms of its ability to achieve the major objectives of financial regulations, namely contributing to financial stability; the provision of equally competitive regulatory conditions for financial institutions; and aiming to ensure that regulatory capital requirements are risk‐sensitive. This article investigates and compares the risk‐sensitivity of economic capital and regulatory capital requirements empirically from a systemic and institution‐specific perspective. The results are assessed to determine whether current regulatory capital requirements are representative of the relevant risks financial institutions face. Given these results as well as calls to strengthen Basel's Pillar 2 disciplines in the aftermath of the crisis, it also presents a case for regulators to place a heavier reliance on economic capital – rather than regulatory capital numbers.     

Avatar-based innovation: Using virtual worlds for real-world innovation

The purpose of this article is to explore the opportunities virtual worlds offer for real-world innovations. By integrating users of virtual worlds into an interactive new product development process, companies can tap customers’ innovative potential using the latest technology. Connecting the emerging technology of virtual worlds with a customer-centric perspective of open innovation allows unique and inventive opportunities to capitalize on users’ innovative potential and knowledge. The concept of avatar-based innovation serves as a point of origin to reveal these possibilities and represents the first attempt to systematically take advantage of virtual worlds for innovation management. In doing so, this paper argues that latest advances of information and communication technologies enrich the interaction process and can improve new product development process. Further, characteristics are presented that suggest that the digital environment is especially conducive to innovation and creative tasks. Based on theoretical insights, the analysis of eight cases (Coca-Cola, Steelcase, Osram, Alcatel-Lucent, Toyota Scion, Endemol, Aloft, and Mazda), participant observation directly within the virtual world and 23 interviews with both managers and customers, this paper demonstrates how virtual worlds allow producers and consumers to swarm together with like-minded individuals to create new products and permits companies to find an audience to test, use, and provide feedback on the content and products they create. We highlight the active roles avatars can play throughout the whole innovation process, and demonstrate the opportunities of how manufacturers and customers could collaborate to innovate from idea to launch. A few pathfinding companies experiment with avatars as a source of innovation. Specifically, the initiatives of Osram, Steelcase, Mazda, and Toyota truly link the concepts of open innovation and virtual worlds to employ the interactive technology for new product development. These efforts are critically analyzed to examine the hypothesized potential of avatar-based innovation. The cases pinpoint practical implications and reveal both preconditions and challenges of this new approach to interactive new product development. The results suggest that in order to fully realize the potential of avatar-based innovation, companies need to create a compelling open innovation experience and consider the peculiarities of virtual worlds.     

Long-term unemployment and labour force participation: a decomposition of unemployment to test for the discouragement and added worker hypotheses

We sharpen tests for ‘discouragement’ and ‘added worker’ effects by splitting the explanatory variable – the unemployment rate – into a short-term component and a long-term component. While short-term unemployment (STU) might not result in additional workers on a large scale, long-term unemployment (LTU) reduces household income more, increasing the need for additional income. On the other hand, it may discourage older workers for psychological and sociological reasons. Applying our model to the German labour market, these hypotheses could be confirmed. Even for men, about whom only a few empirical studies on this issue are available, distinguishing between STU and LTU reveals added worker as well as discouragement effects.     

Adverse selection in the annuity market with sequential and simultaneous insurance demand

This paper investigates the effect of adverse selection on the private annuity market in a model with two periods of retirement and two types of individuals, who differ in their life expectancy. In order to introduce the existence of time-limited pension insurance, we consider a model where for each period of retirement separate contracts can be purchased. Demand for the two periods can be decided sequentially or simultaneously. We show that only a situation where all risk types choose sequential contracts is an equilibrium and that this outcome is favourable for the long-living, but is unfavourable for the short-living individuals. JEL Classification D82 · D91 · G22     

Marginal tax burden

Zusammenfassung Bei der Beurteilung etwaiger leistungshemmender Wirkungen der Steuer- und Abgabensysteme muß insbesondere die Grenzabgabenbelastung analysiert werden; sie ist sowohl in Österreich als auch in der Bundesrepublik Deutschland in der jüngeren Vergangenheit stark angestiegen. Mit diesem Beitrag wird versucht, die gesamte Grenzabgabenbelastung (aus direkten und indirekten Steuern sowie Sozialabgaben) für beide Länder approximativ zu bestimmen. Dabei scheint der Vergleich zwischen Österreich und Deutschland besonders interessant zu sein, da es im Steuer- und Sozialrecht einerseits weitgehende Gemeinsamkeiten in der historischen Entwicklung gibt, andererseits aber auch grundlegende Divergenzen bestehen, so beispielsweise im unterschiedlichen Gewicht von direkter und indirekter Besteuerung. Über etwaige Wirkungszusammenhänge werden abschließend einige spekulative Überlegungen angestellt.