The Development of Students' Mathematics Self‐Concept in Relation to Gender: Different Countries,Different Trajectories?

Gender differences in the development of children's and adolescents' academic self‐perceptions have received increasing attention in recent years. This study extends previous research by examining the development of mathematics self‐concept across grades 7–12 in three cultural settings: Australia (Sydney; N=1,333), the United States (Michigan; N=2,443), and Germany (four federal states; N=4,688). Results of latent growth curve models document very similar patterns of self‐concept development in males and females in the three settings. First, gender differences in favor of boys were observed at the beginning of the observation period (grade 7). Second, gender was not significantly related to self‐concept change in either group, meaning that initial differences persisted across time. Third, the results provided no evidence that the form of the longitudinal change trajectories for mathematics self‐concept differed across the cultural settings. This pattern of results is inconsistent with explanatory models that predict converging or diverging gender differences in mathematics self‐concept. Furthermore, the results indicate that self‐concept development may be highly similar across western cultural settings.     

What Narrows the Stepgap? Closeness Between Parents and Adult (Step)Children in Germany

Using data from the German Family Panel (pairfam) based on 11,746 intergenerational family relationships, the present study examined differences in parental closeness across relations with multiple, coresidential, and non‐coresidential adolescent and adult children. Replicating previous research in a multilevel analysis across families, the authors found a strong positive effect of biological descent on closeness in comparison to adoptive and steprelations; this parental favoritism toward biological offspring was partly explained by selection via parental resources and attitudes. Supplemental within‐parent fixed effect analyses suggested that the relative disadvantage of stepchildren was offset by longer duration of the stepparent–stepchild relationship, lower household income, fewer children in the household, and high parental affirmation of familism.     

Social Workers as Boundary Spanners: Reframing our Professional Identity for Interprofessional Practice

One of the more difficult tasks for social work educators is socializing students into a professional identity. Social identity theory provides a lens to consider what is needed for a social work identity that will continue to be salient for students as they move into practice. Framing social workers as boundary spanners might offer students a professional identity that is congruent with core values, reflects what social workers do and places less emphasis on old debates about the profession. It also positions students well for work in the increasingly interprofessional realms of health and social care. I consider how social workers are well equipped to meet the demand created by ‘joined-up working’ for people with boundary-spanning expertise. Seeing ourselves as boundary spanners is one way to reconcile our professional and interprofessional identities, thereby increasing the chances that our students will continue to identify as social workers when they move into interprofessional practice.     

Relative Deprivation and Intergroup Prejudice

Using three diverse European surveys, we test the relationship between relative deprivation (RD) and anti-immigrant prejudice. We find that both group relative deprivation (GRD) and individual relative deprivation (IRD) are found primarily among working-class respondents who are politically alienated. We also find that GRD, but not IRD, serves as a proximal correlate of prejudice. IRD's effects on prejudice are largely mediated through GRD. In addition, GRD partially mediates the effects of such distal predictors of prejudice as education and family income. Finally, blaming the victim mediates in part the GRD link with prejudice. These results lead to a socially situated path model of RD's effects on prejudice with public policy implications.     

Nonparametric Matching and Efficient Estimators of Homothetically Separable Functions

For vectors z and w and scalar v, let r(v, z, w) be a function that can be nonparametrically estimated consistently and asymptotically normally, such as a distribution, density, or conditional mean regression function. We provide consistent, asymptotically normal nonparametric estimators for the functions G and H, where r(v, z, w) = H[vG(z), w], and some related models. This framework encompasses homothetic and homothetically separable functions, and transformed partly additive models r(v, z, w) = h[v + g(z), w] for unknown functions gand h Such models reduce the curse of dimensionality, provide a natural generalization of linear index models, and are widely used in utility, production, and cost function applications. We also provide an estimator of Gthat is oracle efficient, achieving the same performance as an estimator based on local least squares when H is known.     

Die Zwänge der Gruppe und die Grenzen professionellen Handelns

Like other methods in social, psychological and therapeutical work the professional identity of group dynamics trainers is directed towards freedom of will and autonomy of the clients. Nevertheless, matters of social control are already of importance in the work of Kurt Lewin, one of the founders of group dynamics, specially in his concept of reeducation. These ideas are complemented by the concepts of sociologist and groupanalysist Norbert Elias about the ambivalent effects of internalised social control. This leads to a short analysis of the changing mechanisms of social control in groups and organisations and its consequences for applied group dynamics and its professional standards.     

Explaining the demand for structured financial products: survey and field experiment evidence

In many countries structured investment products are popular among retail investors. We explain the demand for these products using unique field data where we let subjects freely design their “favorite” structured product. Results suggest that the supply with capital protected products (guarantee certificates) might indeed be demand-driven. This does not seem to be the case for other product categories where marketing and sales practices might play a more important role. In a survey among financial practitioners we find furthermore that a demand for capital protected products can be explained by loss aversion and saving motifs, e.g. for buying a house.     

The Strategic Management of Innovation: A Systematic Review and Paths for Future Research

Strategic management scholars have long emphasized the importance of innovation for a firm's competitive advantage and performance. However, the current state of knowledge about the strategic management of innovation is characterized by conflicting theoretical predictions, persisting knowledge gaps and theoretical inconsistencies. Adopting a ‘systematic’ approach to reviewing the literature, this paper combines different quantitative methods – co‐word analysis, cluster analysis and frequency analysis – to review 342 articles on the strategic management of innovation published in seven journals from 1992 to 2010. On the basis of these analyses, suggestions are developed for future research which could help to promote future theory development and provide relevant material for policy decisions that managers and executives have to make when they manage innovation.