Hot times,hot places. Youths’ risk perceptions and risk management in Chicago and Rotterdam

Many young people in low-income neighbourhoods are considered to be at risk of poor social outcomes and of becoming victims of violence and crime. This exploratory study focuses on how young people perceive risk and navigate their environment in two low-income, multi-ethnic neighbourhoods, one in Rotterdam and one in Chicago. We conducted in-depth interviews and mental mapping exercises with young people aged 14–19 in both sites. We found that neighbourhoods matter because they expose young people to certain kinds of risks, but also that their responses were shaped by their perceptions and interpretations of these risks. Moreover, we illustrate the dynamic and interactive nature of these processes of risk perception and management by discussing the ways in which different groups occupy and use, or travel through, public space at different times of the day. We argue that risk in disadvantaged neighbourhoods is not a static dimension in young people’s lives but rather emerges from an ongoing and complex interaction between perception, interpretation and response that can be seen as a kind of boundary work.     

Hybrids,materiality, and black boxes: Concepts of actor‐network theory in data journalism research

Actor‐Network Theory (ANT) vocabulary offers meaningful sensibilities for explorations of data‐driven newswork. Concepts of hybrids, materiality, and black boxes are increasingly mentioned across digital journalism studies and appear to be particularly constructive to examine the relations between data, computation, and journalism practice, epistemology, reflexivity, and journalistic artefacts. After outlining central concepts of ANT, this literature review provides an overview of research agendas that propose sociotechnical dimensions, followed by a structured review of findings generated through ANT‐informed explorations of data journalism. In a closing summary, presented findings and limitations of ANT are discussed.     

Touch in residential child care: staff’s bodies and children’s agency

This paper concerns the significance of touch in the everyday life of those living and working in residential child care. Public and professional awareness about child abuse has focused attention on the bodies of children and their vulnerability – but the same cannot be said of the bodies of staff members who touch children. This ethnographic study of a Scottish residential child care unit shows such touch to be central to the everyday participation of children and young people in care. On the basis of participant observation, the paper analyses how care workers influence the agency of children and young people by bringing their own bodies into their relationships with them. Based on a relational understanding of care, the paper elaborates on how tender and restraining forms of touch form part of care workers’ professional repertoire of actions. The analysis of various instances of touch in terms of sociology of the body shows how staff members can help to shape children and young people’s opportunities for participation with their own bodies. In conclusion, the paper therefore argues for a professional and reflexive engagement with bodies rather than a general avoidance of touch between care workers and young people.     

Teil-autonome Arbeitsteams oder tayloristische Produktionslinie? Welche Erkenntnisgewinne bieten simulationsbasierte Work Design Trainings

Digitalisation, flexible job markets, new technologies and innovative forms of collaboration constitute increasing challenges for employers and the design of modern work. But how can we deal with these challenges and what do we know about the effect of good versus bad work design? Based on the job demands-resources model (JRM), we present a simulation-based training during which participants experience the effects of different work characteristics. We focus on the moderating effects of job control and job demands: The JRM assumes that job demands and job control interactively affect employee exhaustion and work engagement: Jobs with high control can buffer the strain-enhancing effect of job demands (buffer hypothesis) and increase work engagement (active learning hypothesis). We test these hypotheses in a workplace simulation during which participants have to produce ice-cream. Our results support the buffer hypothesis but not the active learning hypothesis. We discuss the added value of work design simulations for organisations, practitioners, and HR professionals.     

Modelling price paths in on-line auctions: smoothing sparse and unevenly sampled curves by using semiparametric mixed models

Summary.  On-line auctions pose many challenges for the empirical researcher, one of which is the effective and reliable modelling of price paths. We propose a novel way of modelling price paths in eBay's on-line auctions by using functional data analysis. One of the practical challenges is that the functional objects are sampled only very sparsely and unevenly. Most approaches rely on smoothing to recover the underlying functional object from the data, which can be difficult if the data are irregularly distributed. We present a new approach that can overcome this challenge. The approach is based on the ideas of mixed models. Specifically, we propose a semiparametric mixed model with boosting to recover the functional object. As well as being able to handle sparse and unevenly distributed data, the model also results in conceptually more meaningful functional objects. In particular, we motivate our method within the framework of eBay's on-line auctions. On-line auctions produce monotonic increasing price curves that are often correlated across auctions. The semiparametric mixed model accounts for this correlation in a parsimonious way. It also manages to capture the underlying monotonic trend in the data without imposing model constraints. Our application shows that the resulting functional objects are conceptually more appealing. Moreover, when used to forecast the outcome of an on-line auction, our approach also results in more accurate price predictions compared with standard approaches. We illustrate our model on a set of 183 closed auctions for Palm M515 personal digital assistants.     

Multiple Hypothesis Testing for Variable Selection

We propose two new procedures based on multiple hypothesis testing for correct support estimation in high‐dimensional sparse linear models. We conclusively prove that both procedures are powerful and do not require the sample size to be large. The first procedure tackles the atypical setting of ordered variable selection through an extension of a testing procedure previously developed in the context of a linear hypothesis. The second procedure is the main contribution of this paper. It enables data analysts to perform support estimation in the general high‐dimensional framework of non‐ordered variable selection. A thorough simulation study and applications to real datasets using the R package mht shows that our non‐ordered variable procedure produces excellent results in terms of correct support estimation as well as in terms of mean square errors and false discovery rate, when compared to common methods such as the Lasso, the SCAD penalty, forward regression or the false discovery rate procedure (FDR).     

Vom Vier-Augen-Prinzip zum Zwei-Fronten-Krieg

According to the German Federal Ministry of Economic Affairs and Technology 25 % of all start-ups fail within their first three years. A third of the team managed start-ups fail not because of classical management errors but due to conflicts within the management team. This article aims to pinpoint the reasons behind team conflicts that jeopardize corporations and to illustrate their course by utilizing the psychodynamic concept of collusion relationship (Jürg Willi), adapted from couple therapy. Using anonymized cases, the article will classify characteristic types of collusion and describe possible ways out of these conflicts.     

IMAGE AND MISREPORTING

In this paper we analyze how image utility can lead to misreporting of private information in contexts where truthful reports maximize monetary outcomes. In a controlled experiment, subjects go through a series of quiz questions and subsequently report a performance measure. We vary whether reports are made to an audience or not. In an additional feedback treatment, reports are also stated to an audience and afterwards the experimenter publicly verifies whether reports were correct. We find that in the audience treatment, stated reports are significantly higher relative to the private treatment as well as the feedback treatment. Our findings suggest that overconfident appearance might be a consequence of social approval seeking.     

More Participation,Happier Society? A Comparative Study of Civil Society and the Quality of Life

A ‘good society’ has recently been portrayed as one in which citizens engage in voluntary associations to foster democratic processes. Arguably, such a good society is considered as one where people are content with their own lives as well as public life. We consider whether participation in civil society leads to more satisfied individuals on the one hand and a better evaluation of society at a country level on the other. With data from the first round of the European Social Survey, we illustrate that participation in voluntary associations not only depends on individual characteristics, but that there is a clear country-level effect on civil society. This can be explained with measures of quality of society after socio-demographic determinants have been controlled for. Nonetheless, it remains difficult to say what comes first: a ‘good society’ or a thriving civil society.