Einkommenseffekte beruflicher Weiterbildung

The claim for lifelong learning or vocational further training is most often set out without having clarified satisfactorily the individual gains which result from training activities. Based on human capital theory, which we extend by arguments from signaling- and game theory, the paper investigates for western and eastern Germany individual returns of training on income with longitudinal data (1996–1998) from the recently available “Mikrozensus-Panel”. A problem in identifying causal training effects is a selection bias caused by unobserved heterogeneity which – using conventional methods – leads to overestimation of the effects. Fixed- and Random-Effects-Models – which we discuss and confront empirically regarding the training issue – present a method for controlling the selection bias. The results show evidence for positive and significant training effects on income, although the actual amount of income growth is low. Whereas no differences by sex were found, separate analyses by age, skill levels and region indicate that not all of the subgroups benefit positively from further training activities. Therefore, the findings relativize the importance of social inequalities in the access to further training for the process of status attainment in general.     

Capacity rationing in rental systems with two customer classes and batch arrivals

Service differentiation is an emerging method to improve profit and to better serve high-priority customers. Such an approach has recently been introduced by one of Europe's leading rail cargo companies. Under this approach, customers can choose between classic and premium services. Premium service is priced above classic service and premium customers receive a service guarantee which classic customers do not receive. The company has to decide under which conditions it should ration its fleet capacity to classic customers in order to increase service of premium customers. We model such a situation as a batch-arrival queuing loss system. We describe the model, solve it optimally, and derive quantities of interest such as service probabilities. We further analyze it by performing numerical experiments based on the data from the company that motivated our research. We show that the potential of capacity rationing can be substantial in situations like the one we analyzed. We also derive conditions under which rationing is especially beneficial, such as under high unit fleet holding costs or in the presence of batch arrivals compared to single arrivals.     

Model-based potential analysis of the distribution logistics: a case study

Abstract

The design of its distribution logistics has a decisive influence on a company’s logistical costs and performance. They therefore make an essential contribution to corporate success. This article describes a method for analysing the potential of distribution logistics in terms of logistical costs and performance. In contrast to previous procedures of business process re-engineering, this method maps distribution logistics holistically under variable distribution structures. The article is focused on the approach and results of a case study in a multinational manufacturer of propulsion and automation technologies for machine construction and systems engineering. The developed method is distinguished by a high degree of practicality and applicability. It will contribute to a more efficient design of distribution logistics.     

Undutiful daughter(s): troubling geographies of the gendered nation and belonging in Adichie’s Americanah and Atta’s Everything Good Will Come

ABSTRACT

This paper proffers a reading of Chimamanda Ngozi Adichie’s Americanah as a Bildungsroman that represents a moment of a daughter’s “undutifulness” to domesticating national patriarchies and cultures, textual and epistemic genealogies. In this regard, I posit Adichie’s twining of national romances and a heterosexual romantic love that travels and returns as a framework for examining gendered experiencing and relations to the “home.” The article considers the text’s representation of migration and return not simply as moments of re-domestication and formulaic reunification but as incidents that enunciate expanded relationalities to the nation and reconfigure domestic intimacies in a manner that radically unsettles “home.” Americanah is read alongside Sefi Atta’s Everything Good Will Come in an attempt to show how the development of the protagonists’ interpersonal romances goes together with a studied engagement with the national space and communities in ways that inscribe women’s labours of love, care and intellect into the public domain and charts transformative possibilities of being in the world and inhabiting home. Ultimately, Adichie and Atta’s texts demonstrate alertness to celebrations of transnational black femininities, its vulnerabilities and bonds that transcend the limited “ethical” commitments delineated by the horizons of gendered roles and the national home.     

Gender and multiple forms of peer victimization: how do they influence adolescent psychosocial adjustment?

This study explores the relationship among multiple forms of peer victimization (e.g., direct physical/verbal, relational, and sexual harassment) and psychosocial adjustment among urban students and uses cluster analysis to identify subgroups of victims. Students in sixth, seventh, and eighth grade completed self-report surveys about their psychosocial adjustment, peer victimization experiences, and the gender of the other person involved. Results reveal that both physical/verbal victimization and sexual harassment were related to internalizing behavior, and sexual harassment was related to externalizing behavior. Cluster analysis revealed preliminary subgroups of victims. In addition, being victimized by a boy was more strongly related to behavior problems for both boys and girls than the experience of being victimized by a girl. Results suggest that the gender of perpetrators and victims should be considered, and there is a need to include sexual harassment in the study of peer victimization when developmentally appropriate.     

Orientierungsprozesse im Vertrauensdilemma. Beziehungskonstruktionen in Beratungen zur privaten Altersvorsorge

Financial advice given by consultants is crucial for retirement saving decisions. We argue that those willing to save are facing a dilemma since there is a widespread mistrust towards the financial industry while financial advice is indispensable for coping with complexity in the decision process. Exploring the case of the state-subsidized Riester-pension in Germany, we show that savers construct personal relationships with the advisor to deal with this complex dilemma in terms of theories on trust. Using a mixed-method design embracing both quantitative techniques—cross-sectional as well as longitudinal (fixed-effects) approaches—and qualitative evidence, we shed new light on old age saving decisions. In detail, the exploitation of longitudinal surveys (of GSOEP and the German SAVE Panel 2004–2010) and of 18 problem-centred interviews provides the following findings: (1) Retirement saving decisions often rely on pre-existing relationships to financial advisors. (2) The less alternative resources available, the more savers rely on these relationships. (3) Financial advisors use their existing relationships to sell pensions. (4) The qualitative material unveils different patterns concerning the decision-making process which are trusteeship, strategic alliance, and acceptable ad-hoc collaboration. Altogether, the widespread idea of private retirement saving resulting from an atomistic and rational planning of the future is an illusion.     

Parental Presence and Encouragement Do Not Influence Helping in Young Children

Young children begin helping others with simple instrumental problems from soon after their first birthdays. In previous observations of this phenomenon, both naturalistic and experimental, children’s parents were in the room and could potentially have influenced their behavior. In the two current studies, we gave 24‐month‐old children the opportunity to help an unfamiliar adult obtain an out‐of‐reach object when the parent (or a friendly female adult) (i) was present but passive, (ii) was present and highlighted the problem for the child, (iii) was present and actively encouraged the child to help, (iv) was present and ordered the child to help, or (v) was absent from the room. The children helped at relatively high levels and equally under all these treatment conditions. There was also no differential effect of treatment condition on children’s helping in a subsequent test phase in which no parent was present, and children had to disengage from a fun activity to help. Young children’s helping behavior is not potentiated or facilitated by parental behavior in the immediate situation, suggesting that it is spontaneous and intrinsically motivated.     

The role of the voluntary,community and social enterprise sector in Early Help: Critical reflections from embedded social care research

The independent review of children's social care (2022) has proposed a radical reset of England's children's services, shifting a remote, assessment heavy system towards one that works alongside communities to help prevent statutory interventions. However, notions around the harnessing of community resources to deliver Early Help are often underpinned by assumptions regarding the voluntary, community and social enterprise (VCSE) sector and the ease with which such organizations can be integrated into preventative strategies. This paper reports findings from embedded research within a unitary authority in Southwest England during remodelling of its Early Help service to work more collaboratively with local VCSE organizations. The study generated data from ethnographic observations, semi-structured interviews and focus groups with 95 participants, including local parents, service providers, VCSE organizations and Council leaders. The findings illustrate that families value the compassionate, responsive and flexible support available within many VCSE settings. However, differences in practice cultures, regulatory pressures on statutory providers, the need to (re)build trust in communities and sensitivities around power-sharing and resourcing meant negotiating VCSE sector integration was fraught with complexities. Few studies have gained such privileged access to a Local Authority's remodelling of Early Help services, and this paper has significant insights for the debates surrounding the independent review of children's social care (2022) and its recommendation to bring services ‘closer to communities’.