Has Income Segregation Really Increased? Bias and Bias Correction in Sample-Based Segregation Estimates

Several recent studies have concluded that residential segregation by income in the United States has increased in the decades since 1970, including a significant increase after 2000. Income segregation measures, however, are biased upward when based on sample data. This is a potential concern because the sampling rate of the American Community Survey (ACS)—from which post-2000 income segregation estimates are constructed—was lower than that of the earlier decennial censuses. Thus, the apparent increase in income segregation post-2000 may simply reflect larger upward bias in the estimates from the ACS, and the estimated trend may therefore be inaccurate. In this study, we first derive formulas describing the approximate sampling bias in two measures of segregation. Next, using Monte Carlo simulations, we show that the bias-corrected estimators eliminate virtually all of the bias in segregation estimates in most cases of practical interest, although the correction fails to eliminate bias in some cases when the population is unevenly distributed among geographic units and the average within-unit samples are very small. We then use the bias-corrected estimators to produce unbiased estimates of the trends in income segregation over the last four decades in large U.S. metropolitan areas. Using these corrected estimates, we replicate the central analyses in four prior studies on income segregation. We find that the primary conclusions from these studies remain unchanged, although the true increase in income segregation among families after 2000 was only half as large as that reported in earlier work. Despite this revision, our replications confirm that income segregation has increased sharply in recent decades among families with children and that income inequality is a strong and consistent predictor of income segregation.     

The Self—Yesterday, Today, and Tomorrow: Another Look at Adolescent Suicide

The premise that significant differences exist in self concept content, structure, and process, between 3 groups of adolescents (age 13–17) was examined in this study, using measures and methods from the field of social cognition. A pilot (and subsequent control) group (n = 23) consisted of non-depressed, non-behaviorally disordered adolescents. The clinical group consisted of two subgroups, depressed adolescents (n = 30) and adolescents who had made a previous suicide attempt (n = 12). Subjects were recruited and interviewed during 1996–1999. Significant differences were found in positive/negative valence of self schemas, across a number of dimensions, among the groups. Additionally, differences in stability of self in the present were discovered among the three groups. Among other implications, these findings suggest that the use of specific, fine grained assessments can contribute to understanding of explicit dimensions within the self that may be related to emotional and/or behavioral issues in adolescence.     

Reporting and Justifying the Number of Interview Participants in Organization and Workplace Research

In this paper we examine established practice regarding the reporting, justification and number of interview participants chosen within organization and workplace studies. For such qualitative research there is a paucity of discussion across the social sciences, the topic receiving far less attention than its centrality warrants. We analysed 798 articles published in 2003 and 2013 in ten top and second tier academic journals, identifying 248 studies using at least one type of qualitative interview. Participant numbers were contingent on characteristics of the population from which they were chosen and approach to analysis, but not the journal, its tier, editorial base or publication year, the interview type or its duration. Despite lack of transparency in reporting (23.4% of studies did not state participant numbers) we reveal a median of 32.5 participants, numbers ranging from one to 330, and no justification for participant numbers in over half of studies. We discuss implications and, recognizing that different philosophical commitments are likely to imply differing norms, offer recommendations regarding reporting, justification and number of participants. Acknowledging exceptions, dependent upon study purpose and data saliency, these include an organization and workplace research norm of 15?60 participants, alongside credible numbers for planning interview research.     

Students with disabilities participating in mainstream schools: policies that promote and limit teacher and therapist cooperation

This paper examines participatory arrangements for students with physical disabilities in mainstream education, cooperation between teachers and therapists to ensure that these arrangements are efficient and the organizational prerequisites for such cooperation. The study comprises data obtained from 14 'groups', with each group consisting of a student with physical disabilities aged 9-19 years, their main teacher and the relevant therapists from the local habilitation centre. Data were collected through semi-structured interviews, field observations and a review of relevant documents, including legislation. The results reveal a lack of cooperation between teacher and therapist which results in students with disabilities receiving suboptimal participatory arrangements in school. Differences in the perspectives of the teachers and therapists and in the way they act and perceive their responsibilities were anchored in institutional and societal documents and the distribution of resources. The implications for students with disabilities are discussed.     

Volunteering in a School Kitchen Garden Program: Cooking Up Confidence,Capabilities, and Connections!

This paper reports on the evaluation of a kitchen garden program in primary schools in Victoria, Australia. It focuses on the motivations, impacts, and issues associated with volunteering in the program. The study revealed that volunteers are drawn from a range of sources, including: families of current and former students, former teachers, local residents, clients of aged care and/or disability services, other schools and communities, local universities, community organizations, the community services sector, and the corporate sector. Benefits to volunteers included: opportunities to use time productively, an increased sense of belonging, learning opportunities, and an increased sense of self-worth and enjoyment. For schools, volunteers enhanced engagement between the school and the local community, enabled them to engage more effectively with hard to reach groups, and increased student engagement. In addition, the involvement of volunteers improved the sustainability of the program, improved communication between teachers and families of students from minority ethnic groups, and gave students the chance to relate to new people, to learn from their experience and to have fun in working with the volunteers. Perhaps the most telling benefits to flow both to students and to volunteers were not the “three Rs—reading, w’riting and a’rithmetic” but the three Cs—confidence, capabilities, and connections. However, a clearly identified issue was the importance of matching volunteers’ motivations and needs with the roles they play to sustain current levels of volunteering and, therefore, the program itself.     

Information technology, unions, and the new organization: Challenges and opportunities for union survival

The rapid transformation of the U.S. business environment has radically changed the character of organizations where unions seek to represent workers. Many of the structural elements that have provided critical support to union representation in collective bargaining have been significantly altered, or lost altogether. We have argued that information technologies have been a pivotal force of change in business organizations and have identified a set of key structural elements of these transformed organizations. It is our belief that while the new organization creates significant challenges for private sector unions, it also creates an opportunity for unions to develop new roles and new opportunities to prosper in the next millennium.     

Information technologies and the

conclusion The evolution in the role of middlemen has many important implications at the macro-economic level as well. In many markets, the negative employment effects of labor-saving technologies are offset by increases in the demand for labor as transaction costs fall and additional labor is needed to produce more goods and services. As discussed above, middlemen operate successfully in markets when private transactions are costly and inefficiencies exist. Many traditional aspects of this role are being replaced by information technologies. Generally, information technologies are a close substitute for match-making services, but are less suited for reducing privately held asymmetric information. The reduction in transaction costs and improved efficiencies in match mak-ing provided by information technologies increases the demand for expert services which further increases the returns to education and widens the earnings gap. The widening should be greatest in industries that concentrate on match-making services such as real estate, however a widening is likely to be present in most sectors. Middle-men with expertise beyond match making will remain viable, while those lacking value-adding expertise will be rapidly marginalized.     

Organizational Form as a Mechanism to Involve Staff,Public and Users in Public Services: A Study of the Governance of NHS Foundation Trusts

In addition to introducing markets and market‐like structures into public services, New Labour wished to promote the involvement of users and the public in decision‐making in other ways than as individual consumers. One way was to involve the public in the governance of organizations. This could be done by removing public services from state control, and transferring them to mutual ownership; or by increasing public involvement in the governance of public bodies. NHS foundation trusts (FTs) were presented as mutuals. Our study shows FTs are not mutuals, as they continue to be owned by the state. Moreover, staff of FTs were generally not engaging with the new governance structures. In general, there was mixed experience of the new structures enabling governors to increase accountability of the hospitals to the public. On the other hand, having a membership did enhance the legitimacy of FTs, as opposed to other NHS organizations. The findings of the study are of current interest as the coalition government is continuing with the policy of FTs, and also encouraging mutuals and other forms of public involvement.     

Psychological Determinants of Willingness to Taste and Purchase Genetically Modified Food

Decreasing acceptance of biotechnologies over time has been reported in Europe. Studies claim that attitudes are negative, even hostile, and that people are very worried about genetic engineering in food and medicine. However, such studies are mostly based on surveys and these have significant methodological problems, such as low response rates, which may indicate that only those with strong views respond, thus biasing the sample. Here an alternative method, involving "topic-blind" recruitment of participants and a behavioral measure (food tasting), was used. We show that in a topic-blind sample of 100 individuals, 93% willingly tasted and ate what they believed to be genetically modified (GM) food in an experimental setting, and 48% said they would buy GM food in the future, results that are surprising in the context of other reports about attitudes and intentions toward GM food. Purchasers and nonpurchasers differed in their attitudes toward GM food on key risk-related scales (particularly on a dread-not dread scale--a measure of integral affect--and an ethical-unethical scale). Despite these differences, however, and despite their negative attitude, most nonpurchasers (85.7%) still tasted the GM apple. Incidental affect (state stress and trait worry) was not found to influence risk-related judgments about GM food. Integral affect (dread of GM plants and animals used for food) and concerns about the future risks of GM animals in food were found to be key predictors of willingness to purchase GM food.