Location and Pricing Decisions of a MultiStore Monopoly in a Spatial Market

Abstract.  This article presents an analysis of location and pricing decisions of a monopolist about to open several stores in a compact geographical space. The number of stores is made endogenous by the introduction of fixed costs. A novel methodology is developed, by which the firm's location and price decisions are represented as continuous functions defined over the geographical space. This modeling artifact generates a negligible error but simplifies the solution considerably and allows the derivation of several intuitive results. Although the focus is on one‐dimensional markets, it is shown that the method can easily be adapted to two‐dimensional markets.     

La mesure des variations territoriales du bien-être de la population vieillissante de l'Outaouais, entre caractères objectifs et évaluations subjectives

La question de la mesure du bien-être a ceci d'intéressant qu'elle oblige les géographes à pousser leur réflexion sur les modalités de l'interconnexion entre données objectives et données subjectives. Malgré le regain d'intérêt pour le concept sur la scène publique, peu d'efforts systématiques ont cependant été entrepris dans cette perspective. Notre article vise à pallier cette lacune en comparant une mesure objective de la qualité de vie de la population vieillissante de l'Outaouais (Québec) avec des données sur son bien-être obtenues par voie d'enquête. Le capital résidentiel, le capital social et le capital humain sont les trois grands facteurs du bien-être qui ont retenu l'attention. L'effet de milieu sur la relation du bien-être objectif au bien-être subjectif a été un important fil conducteur de la recherche. L'étude montre que, si les deux ensembles de mesures convergent assez bien, elles ne se superposent pas entièrement. Les mesures objectives de la contribution de l'environnement social au bien-être traduisent mal les satisfactions telles que révélées par l'enquête qui illustrent par ailleurs le besoin de tenir compte du sexe, du revenu et de la scolarité dans le bien-être perçu.     

Does Diversity Matter? Measuring the Impact of High School Diversity on Freshman GPA

At the heart of arguments for affirmative action in university admissions are various claims about ethnic diversity. One assertion is that a diverse student body improves the quality of the educational experience: all students learn more. Further, a diverse educational experience better prepares students for the pluralistic society in which they will live. Previous studies examining these issues have been based on informal and survey methods. To better assess the impact of diversity we utilize a data set that allows us to measure student performance at the University of Illinois at Chicago (UIC) as a function of the diversity of a student's high school. Do students from diverse high schools do better in the ethnically diverse environment at UIC? After controlling for other factors that affect GPA, such as ACT, high school rank, and high school quality, we find significant diversity impacts. Depending on the diversity measure, a student from a very diverse high school has an expected first semester GPA that is a one‐fourth to one‐half point higher than a student from a nondiverse high school. The diversity impacts tend to be greater for students in the lower tail of the GPA distribution. There are also large gender differences with females helped most by diversity. Although the results represent outcomes at only one university, they nevertheless serve as a starting point for quantitatively assessing the impact of a diverse learning environment.     

War Shields of the Torricelli Mountains,West Sepik Province,Papua New Guinea

ABSTRACT The usefulness of the term ‘ethnolinguistic group’, as a construct suggesting that ‘differences in language automatically translate into differences in culture’, has been questioned by Welsch, Terrel and Nadolski (1992). Not many researchers would insist on the term ‘automatically’, but would nevertheless support an argument for a strong correlation between material culture and language. As a contribution to this debate, we discuss two types of wood shields of the Torricelli Mountains (one of which is being identified for the first time) and pigskin shields to the south of the Torricellis, their use, and the details of the carved designs of the wood shields. The results of our analysis provide limited support for the correlation of material culture and language but highlight the need for analysis of material culture based on reliable data for a large number and wide range of artefacts, from defined regions, presently held in museums and private collections worldwide.     

Intimate Consumption and New Sexual Subjects Among the Sambia of Papua New Guinea

This article examines the transformation of sexual meanings, attitudes, norms, and practices surrounding depletion and pollution across decades (1974–2010) among the Sambia of Papua New Guinea. In the premodern village, all sexual intercourse, whether with boy‐initiates or women, was ritualized and ultimately controlled by the men's secret society. Intimate consumption refers traditionally to a symbolic complex of beliefs, concepts, emotions, and ritual experiences involving sexuality, bodily health, social relationships, and gendered politics. But it also covers sexual anxieties corresponding to the transfer and loss of bodily fluids via the perceived depletion and pollution of self and body. For adult men, the sense of intimate consumption requires repeated substance replenishment and purification. Intimate consumption made oral and vaginal sex highly rule‐bound, taboo laden, and intensely regulated in terms of the meaning, scope, duration, and intended goals of sexual exchange. Pacification, colonization, out‐migration, Seventh Day Adventist (SDA) Christianity, and primary schooling in the Sambia Valley over a period of decades instigated social transformations that challenged and wore down this system of sexual regulation. Thus, the transition from ritual to non‐ritual practices, i.e., more individualistic sexual relationships, highlight narratives of change in the Sambia sexuality. With the demise of ritual initiation in the 1980s and 1990s, and the appearance of HIV and SikAids in the Sambia Valley, explicit ritual sexual techniques were no longer socialized. Modernity (in the sense of a set of policies, attitudes, and rules introduced through institutions such as the government community school) and SDA church sociality influenced both the pace and form of this sexual transformation. Among the greatest changes was the expansion of female agency and sexual autonomy, and personal decision‐making vis‐à‐vis especially marriage and also romance, courtship, and sex. Notably, oral sex, once universal and mandatory, largely disappeared from Sambia intimate relations. Today, spousal intimacy reveals a different set of more ‘modern’ meanings and behaviors compared to two generations ago, e.g., more mutualistic and companionate. Intimate consumption remains a worry for certain Sambia young men and women today however, influenced in part by the rise of the HIV pandemic, mobility, and the absence of normative narratives of sexuality in villages and town settlements. This creates public spaces wherein new sexual subjects have emerged in the villages and urban settlements within the Sambia Valley and in settlements throughout PNG.