Consequences of economic inequality: Introduction to a special issue

As an introduction to the papers of this special issue on Consequences of Economic Inequality we first underline with a simple empirical exercise the relevance of studying the subject of consequences of economic inequality in many socially important fields. Next, we sketch the two main theoretical perspectives on the channels by which inequality exerts its effects: on the one hand, the psychosocial, which stresses the role of individual status and stratification, and, on the other hand, the neo-material, which puts the focus on resources at people's disposal. In our view the two are not mutually exclusive. Thirdly, we present each of the contributions and relate their results to these main perspectives. We find support for the view that inequality can magnify not only the differences between individuals or households in the resources at their disposal, but also the association between these resources and politics, well-being and social stratification.     

Managing up: dynamic following in an organizational setting

Learn how working with an executive coach can help ease a rocky relationship with your boss or co-workers.     

Approximations of Studentás t and chi-square percentage points

Three tables provide coefficients for polynomial approximations of Student's t and chi-square percentage points at 10 probability levels, with relative error less than .00005     

Comment on “ estimating systems of trending variables”: estimating pushing trends and pulling equilibria

This paper is a comment on Soren Johansen's (1994) paper on estimating systems of trending variables. The pedagogical and diagnostic value of using univariate time series methods is emphasized together with the use of small scale experiments that give insight into the sensitivity of unit root test procedures to misspecification of the deterministic components. The test statistics used in the likelihood approach advocated by Johansen are compared with several other test statistics, in particular, those of Box and Tiao (1977) and Stock and Vatson (1988). We also compare the corresponding methods to estimate pulling equilibria. We present the outcomes of two Zlonte Carlo experiments to illustrate some points.     

Evaluation of false discovery rate and power via sample size in microarray studies

Microarray studies are now common for human, agricultural plant and animal studies. False discovery rate (FDR) is widely used in the analysis of large-scale microarray data to account for problems associated with multiple testing. A well-designed microarray study should have adequate statistical power to detect the differentially expressed (DE) genes, while keeping the FDR acceptably low. In this paper, we used a mixture model of expression responses involving DE genes and non-DE genes to analyse theoretical FDR and power for simple scenarios where it is assumed that each gene has equal error variance and the gene effects are independent. A simulation study was used to evaluate the empirical FDR and power for more complex scenarios with unequal error variance and gene dependence. Based on this approach, we present a general guide for sample size requirement at the experimental design stage for prospective microarray studies. This paper presented an approach to explicitly connect the sample size with FDR and power. While the methods have been developed in the context of one-sample microarray studies, they are readily applicable to two-sample, and could be adapted to multiple-sample studies.     

Working with recruiters. Physicians sound off in CyberForums about their experiences with recruiters

Searching for your next job is never easy. You generally need all the help you can get. Often, that means working with physician recruiters who have the connections to help you land a great position. But dealing with recruiters can be both rewarding and frustrating. In two ACPE CyberForums facilitated by Barry Herman--one in 1999 and another just a few months ago--participants talked about the role of recruiters, offering advice and tips that can help physician executives carry out a successful job search.     

Health value, perceived social support, and health self-efficacy as factors in a health-promoting lifestyle

During their college years, students may adopt healthpromoting lifestyles that bring about long-term benefits. OBJECTIVE AND PARTICIPANTS: The purpose of this study was to explore the roles of health value, family/friend social support, and health self-efficacy in the health-promoting lifestyles of a diverse sample of 162 college students. METHODS: Participants completed an Assessment Battery consisting of the following instruments: (1) a demographic questionnaire, (2) the Multi-Dimensional Support, (3) the Value on Health Scale, (4) the Self-Rated Abilities for Health Practices, (5) the Health-Promoting Lifestyle Profile II, and (6) the Marlowe-Crowne Social Desirability Scale. RESULTS: Correlational analyses indicated that health value, perceived family/friend social support, and health self-efficacy were significantly associated with engagement in a health-promoting lifestyle. An analysis of covariance (ANCOVA) revealed that health value and health self-efficacy significantly predicted the level of engagement in a health-promoting lifestyle. Perceived family/friend social support was not significant in the model. As age increased, level of perceived family/friend social support decreased. CONCLUSION: Present findings suggest that health interventions programs focus on assessing and increasing health self-efficacy and health value of these youth. College health professionals can design and evaluate the effectiveness of such health-promoting interventions.     

An Integrative Review of Employee Voice: Identifying a Common Conceptualization and Research Agenda

Employee voice has been studied across a diverse range of disciplines, generating an extensive body of literature on the topic. However, its conceptualization across the disciplines has differed, resulting in a lack of integrative theories and frameworks on employee voice. The main objective of this paper is to conduct a multidisciplinary review of the academic research on employee voice, to show where there is an opportunity to adopt and adapt the findings and research on employee voice within alternate disciplines, and to demonstrate how this may lead to more common ground in the conceptualization of employee voice. This review focuses on an analysis of the Human Resource Management/Employment Relations and Organizational Behaviour disciplines' conceptualization of employee voice, beginning with the identification of where the disciplines diverged in their concept and study of employee voice. Further, it maps their similarities and differences, on the basis of motive, content, mechanism, target and management of voice. Finally, it identifies opportunities to incorporate the alternate disciplinary perspective and proposes a conceptual model, which addresses the blind spots in each discipline. It is proposed that the consideration of formal and informal employee voice in future studies will enable the better integration of voice research.     

Race and psychological distress: the South african stress and health study

We analyze data from the South African Stress and Health Study, a nationally representative in-person psychiatric epidemiologic survey of 4,351 adults conducted as part of the World Mental Health Survey Initiative between January 2002 and June 2004. All blacks (Africans, Coloreds, and Indians) initially report higher levels of non-specific distress and anger/hostility than whites. Access to socioeconomic resources helps explain differences in non-specific distress between Coloreds and whites and Indians and whites. However, only when social stressors are considered do we find few differences in psychological distress (i.e., non-specific distress and anger/hostility) between Africans and whites. In addition, self-esteem and mastery have independent effects on non-specific distress and anger/hostility, but differences between Coloreds and whites in feelings of anger/hostility are not completely explained by self-esteem and mastery. The findings contribute to the international body of work on social stress theory, challenge underlying assumptions of the minority status perspective, and raise a series of questions regarding mental health disparities among South Africans.     

Education and occupational status in 14 countries: the role of educational institutions and labour market coordination

This article explores the role of national institutional factors – more specifically, the level of skill transparency of the education system and labour market coordination – in accounting for cross‐national differences in the relationship between education and occupational status. Consistent with previous research, our findings suggest that skill transparency is the primary moderator. Countries with a highly transparent educational system (i.e., extensive tracking, strong vocational orientation, limited tertiary enrolment) tend to be characterized by a strong relationship between education and occupational status. These findings hold even after controlling for the level of labour market coordination. Nevertheless, we also find that labour market coordination plays an independent role by dampening the effect of education on occupational status. Taken together, these results suggest two quite different policy implications: (1) strengthening the skill transparency of the education system by increasing secondary and tertiary‐level differentiation may strengthen the relationship between education and occupation, regardless of the level of coordination, and (2) increasing labour market coordination could lead to improved social inclusion and a reduction in inequalities related to educational attainment.