On the predictive efficiency of the core solution in side-payment games

This paper reports the first cross-study competitive test of thecore solution in side-payment games where the core is nonempty and nonunique (i.e., larger than a single point). The core was tested against five alternative theories including the Shapley value, the disruption nucleolus, the nucleolus, the 2-center, and the equality solution. A generalized Euclidean distance metric which indexes the average distance between an observed payoff vector and the entire set of predicted payoff vectors (Bonacich, 1979) was used as the measure of goodness-of-fit. Analysis of data assembled from six previously reported studies (encompassing a total of 1,464 observations over 56 3-person and 4-person side-payment games) showed the core to predict less accurately than the Shapley value, disruption nucleolus, and nucleolus solutions (p < 0.01). These findings are consistent with previous empirical results that show the core to have a low level of predictive accuracy in side-payment games.This research was supported by grants SOC-7726932 and SES-8015528 from the National Science Foundation. Data analysis was performed at the Madison Academic Computing Center.     

‘Heroes and Matriarchs’: Working‐Class Femininities,Violence and Door Supervision Work

Door supervision work is traditionally seen as a working‐class, male‐dominated trade. In addition, it is deemed to be one that is physically risky, where violence is seen as a ‘tool of the trade’ and where ‘bodily capital’ and ‘fighting ability’ are paramount to the competent performance of the job. This paper is a timely analysis on the manner in which the increasing numbers of women who work in door supervision negotiate their occupational identity and construct their work practices. The analysis focused on the way in which discursive constructions of both violence and workplace identities are variably taken up, reworked and resisted through the intersection of gender and class. This resulted in the identification of two main discourses; ‘playing the hero’ and the ‘hard matriarch’. These findings allow us to theorize that multiple, gendered and classed occupational identities exist beyond normative expectations and can be seen to be both emancipatory for working women, while simultaneously bolstering exploitation, workplace harassment and violent practices.     

The Impact of Behavioral Couple Therapy on Attachment in Distressed Couples

Emotion‐focused therapy (EFT; Greenberg & Johnson, 1988 Emotionally focused therapy for couples. New York: Guilford Press) is anchored in attachment theory (Johnson, 2003 Attachment processes in couples and families. New York: Guilford) and considers change in attachment schemas essential in the process of improving satisfaction in relationships (Johnson, 1999, Research and couples therapy: Where do we go from here? American Family Therapy Academy Newsletter). However, there are little data on how measures of attachment change over the course of EFT or any other couple therapy. The current study examines whether increases in attachment security predict improvements in marital satisfaction during behavioral couple therapy, which would suggest that change in attachment style is a key process variable even for a non‐attachment‐focused treatment. Multilevel models of data from 134 couples participating in a randomized clinical trial of integrative behavioral couple therapy and traditional behavioral couple therapy (Christensen et al. Journal of Consulting and Clinical Psychology, 72, 2004, 176) indicate that although there is a trend for early change in attachment‐related anxiety and avoidance to predict later change in marital satisfaction, early change in marital satisfaction strongly predicts change in attachment‐related anxiety through the end of treatment and 2‐year follow‐up. These findings suggest that changes in satisfaction may lead to changes in attachment rather than the reverse and that change in attachment may not be the mechanism of change in all efficacious couple therapy.     

The Social Ecology of Race and Ethnicity School Achievement Gaps: Economic,Neighborhood, School,and Family Factors

This study used a nationally representative sample of middle and high school students to examine the degree to which economic, neighborhood, school, and family factors contributed to three points on a proposed school outcome continuum: (1)avoidance of problem behavior, (2)sense of school coherence, and (3)grades. Multilevel models were employed to account for the clustering of students inside schools. Results suggested that though family and neighborhood social factors contribute to variance in school outcomes, family and neighborhood economic factors revealed the largest potential to explain and therefore present leverage points to reduce race and ethnicity achievement gaps.     

The Role Of Empathy in Brief Therapy: The Overlooked but Vital Context

Brief therapy is widely perceived to be a very technique oriented and outcome focused endeavour, with limited interest in the fluidity of the relationship between the therapist and client. This perception exists despite the absolute priority brief therapy has always placed on building a cooperative relationship between therapist and client. Certainly, the brief therapy tradition has almost completely avoided talking about ‘empathy’ and the emotional realm, almost as if it is inappropriate for a brief therapist to discuss them. This paper suggests firstly that brief therapy is enhanced, rather than diminished, by engaging with both empathy and affect, and secondly, that the conception and practice of empathy can itself be enhanced by the rich tradition of skills and experience that brief therapy offers. Case material is used throughout this paper to illustrate the authors’ views.     

The role,power and influence of company chairs

This paper develops an analytical framework to depict the heterogeneity that characterises the role of board chair and demonstrate the potential variability in how chairs operate boards and exercise power and influence on strategy, control and resource related tasks at board level. Theories of power and influence, as applied to top management teams and boards of directors, are explicated within the context of contemporary governance practices that are establishing the role of the board chair as distinct to that of the chief executive officer. Specifically, the paper maps sources of power and varying contemporary chair practices, including chair nomenclature (i.e. executive vs. non-executive chairs), chair origin (insider vs. outsider) and chair time (full-time vs. part-time). A number of theoretical chair-power models emerge from this analysis and are subject to empirical analysis using data collected from 160 chairs of 500 FTSE-listed companies. Theoretically and empirically, the paper complements structural approaches to studying boards with attention to behaviour on boards. By linking board structure, board process and the exercise of influence, the study reveals both differences amongst chairs in how they run the board, but also that chairs’ differ in the influence they exert on board-related tasks. Full-time executive chairs exert their greatest influence in strategy and resource dependence tasks whereas part-time, non-executive chairs seem to exert more influence over monitoring and control tasks.