The Asking Rules of Reciprocity in Networks of Care for Children

This article enumerates those unspoken but observed conventions, the asking rules, by which people abide when they are engaged in relations of give and take. By studying networks that employed parents construct to help them care for and raise their school-age children, this article analyzes the dynamics of reciprocity. It explores a distinction in Gouldner's theory between status obligation and normative reciprocity. Based on the evidence, the article argues that kinship status and class location shape the ways that asking rules are interpreted and invoked.     

Mean-preserving changes in risk with tail-dominance

In this paper, we consider a class of mean preserving increases in risk such that all risk-averse decision makers respond to an increase in risk by reducing the level of their risky activities. The type of increase in risk that we consider is based on the notion of tail dominance which generalizes other cases previously discussed in the literature.L. Eeckhoudt is Professor of Economics at the Catholic Faculties of Mons (Belgium) and Lille (France). P. Hansen is Professor of Operations Research at Ecole des Hautes Etudes Commerciales, Montréal. Both authors have benefited from comments by P. Caperaa, G. Dionne, J. Meyer and H. Varian. They also thank A. Coopman who carefully reviewed and improved the English style.     

A Trichloroethylene Risk Assessment Using a Monte Carlo Analysis of Parameter Uncertainty in Conjunction with Physiologically-Based Pharmacokinetic Modeling

A Monte Carlo simulation is incorporated into a risk assessment for trichloroethylene (TCE) using physiologically-based pharmacokinetic (PBPK) modeling coupled with the linearized multistage model to derive human carcinogenic risk extrapolations. The Monte Carlo technique incorporates physiological parameter variability to produce a statistically derived range of risk estimates which quantifies specific uncertainties associated with PBPK risk assessment approaches. Both inhalation and ingestion exposure routes are addressed. Simulated exposure scenarios were consistent with those used by the Environmental Protection Agency (EPA) in their TCE risk assessment. Mean values of physiological parameters were gathered from the literature for both mice (carcinogenic bioassay subjects) and for humans. Realistic physiological value distributions were assumed using existing data on variability. Mouse cancer bioassay data were correlated to total TCE metabolized and area-under-the-curve (blood concentration) trichloroacetic acid (TCA) as determined by a mouse PBPK model. These internal dose metrics were used in a linearized multistage model analysis to determine dose metric values corresponding to 10^-6 lifetime excess cancer risk. Using a human PBPK model, these metabolized doses were then extrapolated to equivalent human exposures (inhalation and ingestion). The Monte Carlo iterations with varying mouse and human physiological parameters produced a range of human exposure concentrations producing a 10^-6 risk.     

Aesthetic leadership

We introduce aesthetic leadership as a promising approach in leadership studies. Two current movements in leadership research, the inclusion of followers in leadership models and the exploration of subjective leadership qualities, make taking an aesthetic perspective in leadership especially attractive and timely. Aesthetics relates to felt meaning generated from sensory perceptions, and involves subjective, tacit knowledge rooted in feeling and emotion. We believe the aesthetics of leadership is an important, but little understood, aspect of organizational life. For example, while we know followers must attribute leadership qualities such as charisma and authenticity to leaders to allow for social influence, we know little about how these processes operate. We propose that followers use their aesthetic senses in making these assessments. We relate aesthetic leadership to several current topics in leadership research, and outline the assumptions and methods of aesthetic leadership.     

The impact of a respite volunteer ‘buddy’ programme on behavioural and psychological well-being in young carers

Young carers often face a great amount of emotional burden and have high practical and social responsibilities. The role of being a young carer is associated with behavioural, developmental, physical and psychosocial problems that may not only affect the individual in childhood but also in adulthood. The aim of this study was to investigate the effect of a Danish respite volunteer programme called The Buddies for Children and Youngsters Programme on young carers' (n = 49; aged 6–16) social–emotional functioning. A pre–post-design was applied, and data were collected through the parent version of the strengths and difficulties questionnaire (SDQ), here with an impact supplement at baseline and at the end of the programme (after 4 months). The programme showed a positive impact on emotional symptoms, hyperactivity symptoms, conduct problems, peer problems, prosocial aspects and impact aspects, with mean differences values of −2.50 (p = .000), −0.62 (p = .271), −1.18 (p = .000), −0.74 (p = .008), 0.62 (p = .004) and −0.88 (p = .007), respectively. Furthermore, a large effect was found for the total difficulties score: −5.03 (p = .000). In conclusion, the programme seems promising considering its effect on young carers' social–emotional functioning. However, future research should include comparative studies with a longer duration.     

Personality predictors of career exploration: A meta-analysis

In this meta-analysis, correlations of personality traits and career decision-making self-efficacy with self and environmental career exploration were estimated across 71 samples and a pairwise sample of 19,846. Traits included the Big Five personality traits, shyness, locus of control, vocational decision styles, and stress. Many measures of career exploration were based on scores of self and environmental exploration on the Career Exploration Survey. Results varied by characteristics with the largest effects for locus of control, vocational decision style: thinking-feeling and self-efficacy. Environmental exploration and self-exploration were moderately correlated and demonstrated different relations with traits that were consistent with theory. Self-exploration was related to openness to experience and unrelated to extraversion, while environmental exploration was correlated with extraversion. Both were similarly correlated with conscientiousness such that conscientious individuals were more likely to engage in career exploration.