Das Mindestlohngesetz — Hoffnungen und Befürchtungen

The German government plans to introduce a minimum wage from 2015. This must be understood as a response to the decline in collective bargaining coverage and the marked increase in employment in the low-wage sector. The authors discuss how many workers are affected by this new regulation and whether the minimum wage is too high in relation to the average wage of workers (Kaitz index). They assume that the introduction of a minimum wage in Germany can have a number of effects. It is not possible to forecast all the reactions and behaviour of market participants to handle higher wages and goods prices. Some authors warn that these measures are significant labour market interventions that could have adverse employment effects. They recommend allowing more exemptions from the minimum wage law than intended by the government, especially for young employees and student apprentices. Other authors hope that minimum wages would help to strengthen collective bargaining and stabilise wages. Some authors emphasise that there should be a careful evaluation of the economic effects by scientists.     

Energy Informatics

Due to the increasing importance of producing and consuming energy more sustainably, Energy Informatics (EI) has evolved into a thriving research area within the CS/IS community. The article attempts to characterize this young and dynamic field of research by describing current EI research topics and methods and provides an outlook of how the field might evolve in the future. It is shown that two general research questions have received the most attention so far and are likely to dominate the EI research agenda in the coming years: How to leverage information and communication technology (ICT) to (1) improve energy efficiency, and (2) to integrate decentralized renewable energy sources into the power grid. Selected EI streams are reviewed, highlighting how the respective research questions are broken down into specific research projects and how EI researchers have made contributions based on their individual academic background.     

Ich fühle,also bin ich — Markenemotionen machen den Unterschied

Marken l?sen Gefühle bei den Konsumenten aus. Eine Studie zeigt: Starke Marken profitieren von den mit ihnen verknüpften positiven Emotionen, schwache Marken hingegen k?nnen sogar negative Gefühle erzeugen. Es gilt also, Marken „positiv aufzuladen“. Denn st?rkere Markenbindung und gesteigerte Markenbegehrlichkeit wirken sich letztendlich auch positiv auf die Kaufentscheidung der Verbraucher aus.     

Exploring consumer knowledge structures using associative network analysis

This paper offers a new perspective on consumer knowledge analysis that combines Human Associative Memory (HAM) models from cognitive psychology with network analytic approaches in order to gain deeper insights into consumers” mental representations, such as brand images. An illustrative case study compares the associative networks of a manufacturer brand with a retail brand and is used to demonstrate the application and interpretation of various network measures. Network analysis is conducted on three levels: Node‐level analysis yields insights about salient brand image components that can be affected through short‐term marketing activities. Group‐level analysis is concerned with brand image dimensions that characterize a brand and can be strategically influenced in the medium term. Finally, network‐level analysis examines the network structure as a whole, drawing parallels to brand imagery, which needs to be managed over the long term. Management implications are derived and suggestions for further research are provided. © 2010 Wiley Periodicals, Inc.     

The Term Structure of Implied Forward Volatility: Recovery and Informational Content in the Corn Options Market

Using a flexible method, we develop the term structure of volatility implied by corn futures options with differing maturities, and evaluate its ability to predict subsequent realized price volatility. The implied forward volatilities anticipate realized volatility well. For the nearby interval, the implied forward volatilities provide unbiased forecasts, and are superior to forecasts based on historical volatilities. For more distant intervals, early-year options predict the direction and magnitude of future volatility changes about as well as a three-year moving average and better than a naïve forecast. However, later-year options display less forecast power in part due to reduced trading activity.     

The Dawn of the AI Robots: Towards a New Framework of AI Robot Accountability

Journal of Business Ethics - Business, management, and business ethics literature pay little attention to the topic of AI robots. The broad spectrum of potential ethical issues pertains to using...     

Financial market equilibria with cumulative prospect theory

The paper first shows that financial market equilibria need not to exist if agents possess cumulative prospect theory preferences with piecewise-power value functions. This is due to the boundary behavior of the cumulative prospect theory value function, which might cause an infinite short-selling problem. But even when a non-negativity constraint on final wealth is added, non-existence can occur due to the non-convexity of CPT preferences, which might cause discontinuities in the agents’ demand functions. This latter observation also implies that concavification arguments which has been used in portfolio allocation problems with CPT preferences do not apply to our general equilibrium setting with finite many agents. Existence of equilibria is established when non-negativity constraints on final wealth are imposed and there is a continuum of agents in the market. However, if the original prospect theory is used instead of cumulative prospect theory, then other discontinuity problems can cause non-existence of market equilibria even in this case.     

Uncertainty avoidance,risk tolerance and corporate takeover decisions

In this paper, we examine the role of national culture in corporate takeover decisions, by arguing that managerial risk tolerance (a combination of risk aversion and risk perception), at the national level, is a cultural trait and affects the expected net synergies CEOs require. We propose a theoretical framework that links CEO risk tolerance to the expected net synergies. We empirically show that CEOs of firms located in countries with lower levels of risk tolerance, measured by Hofstede’s (1980, 2001) uncertainty avoidance score, require higher premiums on takeovers, and show that uncertainty avoidance plays a greater role in relatively large takeovers. Additional testing reveals that CEOs from high uncertainty avoiding nations engage less in cross-border/cross-industry takeovers, suggesting that uncertainty avoidance captures more the CEO’s risk perception than his/her risk aversion.     

Organizational Culture and Innovation: A Meta‐Analytic Review

The relationship of organizational culture and innovation has been subject to extensive research over the last decades. The multitude of cultural variables under investigation has led to a fragmented concept of culture for innovation, and an inclusion into management theory is still missing. Further, managerial practice requires an underlying structure in order to decide what culture should be implemented in order to foster innovation, and to assess if a specific culture is an effective and efficient coordination instrument. Hence, a framework is needed which allows classification of cultural values without residuals, to draw expedient comparisons with reference to the criteria by which they are grouped, and to assess their relationship with organizational innovation. This meta‐analysis, which comprises 43 studies with a combined sample size of 6341 organizations, reveals that Quinn and Rohrbaugh's Competing Values Framework provides a meaningful structure for the ideational aspects of organizational culture. The Competing Values Framework describes value systems based on two main dimensions. Those two pairs of opposing values are flexibility versus control and internal versus external orientation. The analysis shows that the congruence of different cultures with organizational goals of innovation can be described based on that framework. Control theory is used to explain the relationship of organizational culture and innovation. While culture describes the ideational aspects of organizational values, clan control describes their coordinative effect. Managers may choose different clan control strategies according to the Competing Values Framework. They will most likely follow the strategy that provides a high level of congruence between the goals of management and the goals of their organization's social system. Individuals that have internalized the organizational values apply them as a form of self‐control. Those values will also be applied in groups, such as product development teams. While development teams may be formed and disbanded with certain projects and individuals may leave the company, the organization forms the steady frame of those activities. The cumulative data confirms the hypothesis that managers of innovative organizations most likely implement a developmental culture, which emphasizes an external and a flexibility orientation. Yet also group and rational cultures are to a certain extent consistent with the goals of an innovative organization and may thus be appropriate social control strategies. Hierarchical cultures emphasize control and an internal orientation and are less likely to be found in innovative organizations. A moderator analysis of the culture–innovation relationship revealed that it is not influenced by the differentiation between radical and incremental innovation, and only weak evidence exists for an influence of innovation adoption versus innovation generation. A potential reason is that those organizations that are geared toward innovation will pursue it consequently, without differentiating between different kinds of innovation. Therefore, managers that follow a (radical) innovation strategy should establish a developmental culture in their organization. If innovation rather represents a minor aspect of the firm's long‐term objectives, the efficiency‐oriented rational culture or a group culture may also be the right choice.     

Can utility optimization explain the demand for structured investment products?

In this paper, we first show that for classical rational investors with correct beliefs and constant absolute or constant relative risk aversion, the utility gains from structured products over and above a portfolio consisting of the risk-free asset and the market portfolio are typically much smaller than their fees. This result holds irrespectively of whether the investors can continuously trade the risk-free asset and the market portfolio at no costs or whether they can just buy the assets and hold them to maturity of the structured product. However, when considering behavioural utility functions, such as prospect theory, or investors with incorrect beliefs (arising from probability weighting or probability misestimation), the utility gain can be sizable.