PROCEDURES FOR DETERMINING RELATIVE FREQUENCIES OF PRODUCTION/ORDER IN MULTISTAGE ASSEMBLY SYSTEMS*

We show that the problems of determination lot sizes in a multistage assembly system for the case of instantaneous production and constant demand for the end item can be reduced to the problems of determining relative frequenceis of production/order for items at each production stage. We further show that such frequencies are independent of the demand levels. Optimal and near-optimal solution procedures for this reduced problem are provided. The near-optimal procedure successively treats each stage of production as a final production stage while simulatenously incorporating decisions made at lower stages into decisions made at higher stages. Experimental results show that the near-optimal procedure results in optimal solutions 75 percent of the time and performs considerably better than representative heuristics available in the literature. Further, its performance is relatively less susceptible to product/structural characteristics of the system.     

Learning to listen: epistemic injustice and gothic film in dementia care education

Listening is a critical and under-theorized dimension to struggles against injustice and marginalization. In the wake of critiques from the disability movement of the pre-eminence of expert medical voices, educating professionals to listen to health service users has become particularly critical. The utterances of people with dementia have frequently been subject to, in Miranda Fricker’s terms, “testimonial injustice”: that is, seen as irrational, unreliable, and not to be believed. This article will examine the way in which the generic conventions of the gothic, more specifically what Mary Ann Doane has described as “the paranoid women’s film,” are used in a short film, Darkness in the Afternoon, widely screened in dementia care education in the UK and internationally. Drawing on interviews with dementia care trainers, analysis of training materials, and the film itself, this article proposes that gender and genre is used in this film as a strategy to reorient the listening and affective practices and testimonial sensibilities of health and aged care workers.     

Urban Poverty and Neighborhood Effects on Crime: Incorporating Spatial and Network Perspectives

Research on neighborhoods and crime is on a remarkable growth trajectory. In this article, we survey important recent developments in the scholarship on neighborhood effects and the spatial stratification of poverty and urban crime. We advance the case that, in understanding the impact of neighborhoods and poverty on crime, sociological and criminological research would benefit from expanding the analytical focus from residential neighborhoods to the network of neighborhoods that individuals are exposed to during their daily routine activities. This perspective is supported by re‐emerging scholarship on activity spaces and macro‐level research on inter‐neighborhood connections. We highlight work indicating that non‐residential contexts add variation in criminogenic exposure, which in turn influence offending behavior and victimization risk. Also, we draw on recent insights from research on gang violence, social and institutional connections, and spatial mismatch and call for advancements in the scholarship on urban poverty that investigates the salience of inter‐neighborhood connections in evaluating the spatial stratification of criminogenic risk for individuals and communities.     

“It's Only Sport”—The Symbolic Neutralization of “Violence”

Within the commodified world of professional ice hockey, athletes sell their bodily performances in return for a salary. A central feature of this transaction is the very real risk of physical injury—a risk inherent within most contact sports, but particularly so within those that feature seemingly “violent” confrontations between competitors, as ice hockey is widely reputed to do. Yet, within the spectacle of sport, where physicality can be constructed as playful and unserious, it is possible for the consequences of such action to be concealed behind a symbolic, ludic veneer. Within this article, we explore this process with a particular focus on ice hockey spectators, for whom notions of sport violence as in some important way “mimetic” of the “real” enabled their propensity to both enjoy, and find moral validation through, potentially deleterious behaviors among athletes.     

The geographic scale of Metropolitan racial segregation

This article addresses an aspect of racial residential segregation that has been largely ignored in prior work: the issue of geographic scale. In some metropolitan areas, racial groups are segregated over large regions, with predominately white regions, predominately black regions, and so on, whereas in other areas, the separation of racial groups occurs over much shorter distances. Here we develop an approach—featuring the segregation profile and the corresponding macro/micro segregation ratio—that offers a scale-sensitive alternative to standard methodological practice for describing segregation. Using this approach, we measure and describe the geographic scale of racial segregation in the 40 largest U.S. metropolitan areas in 2000. We find considerable heterogeneity in the geographic scale of segregation patterns across both metropolitan areas and racial groups, a heterogeneity that is not evident using conventional “aspatial” segregation measures. Moreover, because the geographic scale of segregation is only modestly correlated with the level of segregation in our sample, we argue that geographic scale represents a distinct dimension of residential segregation. We conclude with a brief discussion of the implications of our findings for investigating the patterns, causes, and consequences of residential segregation at different geographic scales.     

Consent requires a relationship: rethinking group consent and its timing in ethnographic research

ABSTRACT

Activist groups in ethnographic research re-negotiated our Ethics Committee’s expected order of securing consent before data collection, demonstrating the importance of researchers taking time to build relationships first. Although the Ethics Committee expected us to obtain group consent, the literature provides little guidance on how to do this. We developed a Memorandum of Understanding to summarize what forms of participant observation each group agreed to and how we would reciprocate. In this article, we (re)conceptualize consent, using analogies to consent in social contract theory and sexual relations to offer a critical perspective on what constitutes consent. We argue that taking time to build relationships before expecting research participants to consent and replacing informed consent with a negotiated agreement is a more ethical approach. We advocate for Ethics Committees to expand the meaning of ‘informed consent’ and review its timing, especially for ethnographic research with groups.     

NORM ENFORCEMENT: ANGER,INDIGNATION, OR RECIPROCITY?

The enforcement of social norms often requires that unaffected third parties sanction offenders. Given the renewed interest of economists in norms, the literature on third‐party punishment is surprisingly thin. In this paper, we report the results of an experiment designed to replicate the anger‐based punishment of directly affected second parties and evaluate two distinct explanations for third‐party punishment: indignation and group reciprocity. We find evidence in favor of both, with the caveat that the incidence of indignation‐driven sanctions is perhaps smaller than earlier studies have hinted. Furthermore, our results suggest that second parties use sanctions to promote conformism while third parties intervene primarily to promote efficiency.     

Portraying Trafficking in Lukas Moodysson's Lilya 4-Ever

The issue of human trafficking is frequently represented in visual images on television and in cinema. These narratives often focus on the selling of young women into the sex industry. One of the most prominent productions on the subject is the Swedish film Lilya 4-Ever (2002). Written and directed by Lukas Moodysson, the film tells the story of a tough adolescent, Lilya. Abandoned by her mother and left to fend for herself, Lilya turns to prostitution in order to survive. She is later trafficked to Sweden. She eventually commits suicide. Set in an unnamed post-Soviet city, the film reflects the reality of the increase in trafficked women from this region since the collapse of the USSR. The article analyzes Moodysson's film as an important model for depicting trafficking. Specific focus is given to the way the director defines Lilya and her milieu and engages seriously with issues of globalization, poverty, post-Soviet realities, and the very real issue of human trafficking. Most notably, Moodysson's film offers a depiction of trafficking that eschews any sexual objectification of the film's protagonist and combines progressive filmmaking with a melodramatic narrative to create a film that inspires extra-diegetic activism. Lilya 4-Ever is an emotionally impactful narrative, a modern-day melodrama for the twenty-first century.     

Why do working relationships not change? The need for a new approach to disability partnership research and social change

Although researchers, service providers, and clients are determined to improve partnerships within disability services, a lack of partnership persists. Using our research as a case study, we reflect on three limitations of common research methods and social change techniques in this area. We suggest that typical approaches struggle to move beyond taken-for-granted ideas, common-sense solutions, and established ideology in the field of disability. Consequently, they often fail to reveal important barriers to collaboration, identify innovative solutions, or initiate meaningful improvements in partnership. We propose a new approach to partnership research and reform grounded in a pragmatic model of social change and argue that projects based on isolated or simplistic data, majority-rule decision-making, simple and efficient planning, and restricted inside perspectives (where storytelling is limited) must be complemented by observational studies, socio-cultural analyses, and critical investigations. In short, we must understand why working relationships do not change to improve disability services.