The relationship between trainers’ media‐didactical competence and media‐didactical self‐efficacy,attitudes and use of digital media in training

The ongoing digitalization in the training sector produces new demands on the media‐didactical competence of trainers. We conducted an online survey of 279 trainers in Germany to investigate the relationships among media‐didactical competence, media‐didactical self‐efficacy, attitudes toward the use of digital media and the actual use of digital media in training. Furthermore, we compared trainers who attended a course on digital media with trainers who did not attend such a course. The analysis of the theoretically expected correlations between the variables resulted in not all hypotheses being accepted. The analysis of the group differences showed that the trainers who attended a course on digital media had higher media‐didactical competence and media‐didactical self‐efficacy scores and used digital media more often in training. There was no significant difference in negative attitudes. The implications for the promotion of the media‐didactical competence of trainers are discussed.     

Domestic spaces and beyond: Consumer food waste in the context of shopping and storing routines

To significantly reduce the volumes of food currently wasted in industrialized countries, tackling food waste on the household level is paramount. While awareness campaigns and economic incentives are important measures, it is crucial to look beyond individual decision making and scrutinize how contextual factors frame consumer lifestyles in ways that intensify the issue of food going to waste. This paper addresses the role of material contexts—in particular, infrastructures and technologies—in the shaping of food shopping and storing practices and thus consumer food waste. It presents an in‐depth, qualitative study with 24 Austrian households, conducted from November 2016 to February 2017. Data were collected through food waste diaries, semi‐structured interviews and a total of 16 focus group discussions. In line with other studies, we find that food waste is a largely unintended outcome of entangled daily routines revolving around food, such as meal planning, grocery shopping and food storing. The characteristics of food retail infrastructures—in terms of accessibility, density and type—shape these routines and thus potentially influence excess food purchases. Food storing practices as well depend on the characteristics of domestic infrastructures and co‐evolve with technologies used for storing food. Unraveling the interconnectivity between material contexts and household food practices can inform policy, product design and food retail development and thus has implications for reducing consumer food waste.     

An agglomeration payment for cost-effective biodiversity conservation in spatially structured landscapes

Connected habitats are ecologically more valuable than isolated habitats for many species. A key challenge when designing payments for biodiversity in fragmented landscapes is to increase the spatial connectivity of habitats. Based on the idea of an agglomeration bonus we consider a scheme in which land-owners only receive payments if habitats are arranged in an ecologically favourable configuration. We compare the cost-effectiveness of agglomeration payments to spatially homogeneous payments on a conceptual level. Our results suggest that positive efficiency gains exist for agglomeration payments. We use Large Blue butterfly habitat in Germany as a specific case study, and find the agglomeration payments may lead to cost-savings of nearly 70% relative to homogenous payments.     

The Politics of Socio-technical Intervention: An Interactionist View

In this article, we apply concepts from symbolic interactionism - a well-established tradition of interpretivist sociology - to investigate the social and political processes involved in a sociotechnical intervention. The intervention was designed to elicit operator involvement in an experimental trial of an advanced manufacturing system at an industrial site in Australia. The interactionist concepts of social worlds, boundary objects and trajectories are used to explore the interrelationships among the theoretical, practical and contextual elements of intervention. We believe that these concepts are flexible intellectual resources that can extend and enrich our understanding of the politics involved in the shaping of work and technology. Such an understanding is necessary if the fields of user participation and sociotechnical design are to move beyond the production of normative discourses and methods into effective interventions in the complex social environments in which technical decisions are made.     

Anticipating Long‐Term Stock Market Volatility

We investigate the relationship between long‐term US stock market risks and the macroeconomic environment using a two‐component GARCH‐MIDAS model. Our results show that macroeconomic variables are important determinants of the secular component of stock market volatility. Among the various macro variables in our dataset the term spread, housing starts, corporate profits and the unemployment rate have the highest predictive ability for long‐term stock market volatility. While the term spread and housing starts are leading variables with respect to stock market volatility, for industrial production and the unemployment rate expectations data from the Survey of Professional Forecasters regarding the future development are most informative. Copyright © 2014 John Wiley & Sons, Ltd.     

Corporate Environmental Strategies Towards Sustainable Development

Many companies have adopted some form of environmental programme to manage their relationship with nature. However, a company's environmental achievements tend to be disconnected from its general operations; consequently, these achievements are ineffective. The purpose of this article is to employ a conceptual approach to explore ways to compose effective corporate environmental strategies. From a resource perspective, the flow of material, knowledge and experiences, relationships, communication, and cooperation and control are discussed as strategy aspects central to an effective environmental strategy. Using these five strategy aspects we show how three different strategies with different contents and directions can be assembled. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment     

BALANCING ACTS: NPO-LEADERSHIP AND VOLUNTEERING

Volunteering is regarded as an increasingly important phenomenon and the 'employment' of volunteers as one of the typical traits of nonprofit organizations. However, the consequences of volunteering for everyday practices of NPO-leadership, i.e. the question of how non-paid employees are treated in settings where formal power is lacking, have so far not received the attention they deserve. Our paper discusses practices for leading without formal power by presenting findings from an empirical research project. Using a Grounded Theory approach, we identify five interrelated practices that question conventional notions of transformative or charismatic leadership.     

Choosing the “cargo” for Noah's Ark - Applying Weitzman's approach to Borana cattle in East Africa

If Noah had had the opportunity to select the animals he took on board his Ark, he would have had to choose between many species, breeds and types within breeds, all containing different genetic material. How could he have made the right choice and which would he have taken on board given the constraints he had to face? Those trying to save threatened livestock breeds within a tight conservation budget face similar questions. In this paper we assess how different types of Borana cattle, a culturally significant breed in East Africa, might be prioritized for conservation. By applying a cost-effectiveness analysis on the basis of Weitzman's approach we conclude that the highest priority should be given to the Ethiopian Borana type (EB) in Ethiopia. Noah, however, would also have been concerned about the problems of inbreeding and effective population size. To overcome this problem we suggest that, rather than loading just two animals, he should have loaded on board 1000 female and 100 male animals as a safe minimum. The minimum cost of conserving 1100 animals of the EB type with the participation of Ethiopian communities is calculated to be €7700 per year, mostly in the form of compensation payments to meet the opportunity costs of livestock-keepers that arise when maintaining the EB.     

Merger negotiations and the toehold puzzle

The substantial control premium typically observed in corporate takeovers makes a compelling case for acquiring target shares (a toehold) in the market prior to launching a bid. Moreover, auction theory suggests that toehold bidding may yield a competitive advantage over rival bidders. Nevertheless, with a sample exceeding 10,000 initial control bids for US public targets, we show that toehold bidding has declined steadily since the early 1980s and is now surprisingly rare. At the same time, the average toehold is large when it occurs (20%), and toeholds are the norm in hostile bids. To explain these puzzling observations, we develop and test a two-stage takeover model where attempted merger negotiations are followed by open auction. With optimal bidding, a toehold imposes a cost on target management, causing some targets to (rationally) reject merger negotiations. Optimal toeholds are therefore either zero (to avoid rejection costs) or greater than a threshold (so that toehold benefits offset rejection costs). The toehold threshold estimate averages 9% across initial bidders, reflecting in part the bidder's opportunity loss of a merger termination agreement. In the presence of market liquidity costs, a threshold of this size may well induce a broad range of bidders to select zero toehold. As predicted, the probability of toehold bidding decreases, and the toehold size increases, with the threshold estimate. The model also predicts a relatively high frequency of toehold bidding in hostile bids, as observed. Overall, our test results are consistent with rational bidder behavior with respect to the toehold decision.