Who is watching? The market for prostitution services

This paper presents an economic model of prostitution that differs from the existing literature in that it makes no restrictive assumptions regarding the gender, pay, and nature of forgone earning opportunities of prostitutes and clients, and applies the same behavioural hypotheses to both. Our model gives a central role of stigma and reputation effects to both clients and prostitutes. We discuss demand, supply, and equilibrium results, indicating the possible effects of different policies on the industry and its different markets.     

Reward Preferences of Pathological Gamblers Under Conditions of Uncertainty: An Experimental Study

Among many personality traits, impulsivity represents one of the most important traits associated with pathological gambling. Empirical research has highlighted the multidimensional nature of impulsivity, which includes different heterogeneous traits and behavioral tendencies. The present study experimentally examined reward preferences of pathological gamblers under conditions of uncertainty using the Balloon Analogue Risk Task (BART). Furthermore it also examined the relationship between impulsivity, time perspective, inability to tolerate delay in gratification, and risk-taking. The present study is the first to simultaneously examine all these variables simultaneously in a sample of pathological gamblers (n = 54) and healthy controls (n = 54) from Italy. All participants participated in the BART and were also administered Italian versions of the South Oaks Gambling Screen, the Barratt Impulsiveness Scale, the Consideration of Future Consequences, and the Monetary Choice Questionnaire. Analyses revealed that compared to HCs, PGs were more risk prone on the BART, and reported elevated levels of impulsivity, steeper discounting rates and a shorter time perspective. All the measures correlated with the gambling severity and strong correlations between the BIS, CFC-14 and BART were observed. Logistic regression analysis demonstrated that impulsivity and risk-taking were strong predictors of pathological gambling.     

New Methods for Resolving Conflicting Requests with Examples from Medical Residency Scheduling

In scheduling medical residents, the objective is often to maximize resident satisfaction across the space of feasible schedules, relative to the many hard constraints that ensure appropriate patient coverage, adequate training opportunities, etc. A common metric of resident satisfaction is the number of time‐off requests that are granted. Simply maximizing this total, however, may lead to undesirable schedules since some requests have higher priority than others. For example, it might be better to grant one resident's request for a family member's wedding in place of two residents’ requests to attend a rugby game. Another approach is to assign a weight to each request and maximize the total weight of granted requests, but determining weights that accurately represent residents’ and schedulers’ preferences can be quite challenging. Instead, we propose to identify the exhaustive collection of maximally feasible and minimally infeasible sets of requests which can then be used by schedulers to select their preferred solution. Specifically, we have developed two algorithms, which we call Sequential Request Selection Via Cuts (Sequential RSVC) and Simultaneous Request Selection Via Cuts (Simultaneous RSVC), to identify these sets by solving two sequences of optimization problems. We present these algorithms along with computational results based on a real‐world problem of scheduling residents at the University of Michigan C.S. Mott Pediatric Emergency Department. Although we focus our exposition on the problem of resident scheduling, our approach is applicable to a broad class of problems with soft constraints.     

Nonparametric Tree‐Based Predictive Modeling of Storm Outages on an Electric Distribution Network

This article compares two nonparametric tree‐based models, quantile regression forests (QRF) and Bayesian additive regression trees (BART), for predicting storm outages on an electric distribution network in Connecticut, USA. We evaluated point estimates and prediction intervals of outage predictions for both models using high‐resolution weather, infrastructure, and land use data for 89 storm events (including hurricanes, blizzards, and thunderstorms). We found that spatially BART predicted more accurate point estimates than QRF. However, QRF produced better prediction intervals for high spatial resolutions (2‐km grid cells and towns), while BART predictions aggregated to coarser resolutions (divisions and service territory) more effectively. We also found that the predictive accuracy was dependent on the season (e.g., tree‐leaf condition, storm characteristics), and that the predictions were most accurate for winter storms. Given the merits of each individual model, we suggest that BART and QRF be implemented together to show the complete picture of a storm's potential impact on the electric distribution network, which would allow for a utility to make better decisions about allocating prestorm resources.     

Marital Quality Assessment: Reviewing the Concept,Instruments, and Methods

Abstract

This study aimed to investigate which instruments have been used in marital quality research since 2005, and the concepts underlying each measure. We conducted a literature review in the following databases: PsycINFO, PubMed, Web of Science, and BVS. The review included 91 studies investigating 21 instruments. Half of the scales were multidimensional, but the most used instruments were unidimensional, except for the DAS. Most measures had exploratory evidence of construct validity and did not provide a definition of the construct under evaluation. Theoretical development is needed to address the problem of largely subjective, empirically based measures. We suggest network models can help to develop new measures and to provide a fresh understanding of the construct and the dynamics of marital relations.     

Sweet death: indigenous labour exploitation in the San Martín de Tabacal Sugar Mill,Salta, Argentina

During the national consolidation process in Argentina, throughout the nineteenth century, a new map of local power was designed based on appropriated territories and the consolidation of ‘internal frontiers’ denominated ‘desert’ by hegemonic discourses. The indigenous presence was denied discursively, yet military crusades of extermination, and a very massive process of labour incorporation of these groups was forced in order to develop the incipient agribusiness activity in certain areas of the country. This article explores life conditions and resistance strategies developed by the indigenous kolla communities, victims of the exploitation performed by the owners of the San Martín de Tabacal Sugar Mill, located in Salta, northwestern Argentina, throughout the twentieth century.     

The passing of the Rex

This paper takes as its point of departure the ethical problematization of debating both sides – having students argue both affirmative and negative on a debate resolution – in order to highlight the role of communication as a cultural technology of liberalism. It argues that debating both sides contributed to the cultural governance of cold war liberalism by separating speech from conviction to cultivate the value of debate as a method of democratic decision-making. The valorization of free and full expression as a pre-requisite for ‘decision by debate’ prepared the ground for dis-articulating debate from cold war liberalism and re-articulating it as a game of freedom that contributes to the moral education of liberal citizens. In so doing, debate becomes a global technology of liberalism creating exceptional subjects by circulating the communicative norms of deliberative democracy.     

Moscow Architecture between Stalinism and Modernism

Recent changes in Moscow's urban structure combine the post-Soviet and the early Soviet aesthetical and ideological patterns in a very contradictory way. The master plan of 2004 with its vision of the ‘‘new capital’’ of the year 2020, is essentially orientated along the lines of its 1935 predecessor. Striking similarity of the mechanisms of the visual celebration of Moscow as a capital city of Russian Federation is, however, based on the opposite economies. The goals of a representative architecture in Moscow are being intertwined with the demands of a new economic settings for architectural planning. The choice of architecture from the 1930s and 1950s as a pattern of orientation for some buildings planned for the most prominent spaces in Moscow is seen here as an oscillation between traditionalism and modernism, considered in the context of political discourses and urban policy.     

Exploring structural habitat heterogeneity in sustainable urban drainage systems (SUDS) for urban biodiversity support

Implementation of sustainable urban drainage systems (SUDS) as part of cities’ transition towards climate resilience encompasses unique opportunities to enhance urban nature qualities. SUDS include individual elements integrated in the urban landscape, e.g. rain gardens or wet basins, which are usually constructed with low structural heterogeneity. Structural heterogeneity of habitats is, however, associated with a high degree of biodiversity. This study explored potentials of habitat heterogeneity enhancement in SUDS using structural heterogeneity as a proxy for biodiversity potential. In an interdisciplinary workshop, landscape architects and urban ecologists designed individual SUDS elements with enhanced structural habitat heterogeneity, hereafter bio-SUDS. The redesigned SUDS elements were infiltration trench, curb extension, rain garden, swale, wet basin, and dry basin. To evaluate the bio-SUDS designs, we developed an index of habitat heterogeneity in SUDS based on registration of 45 structurally important components. The conversion from standard SUDS to bio-SUDS entailed substantial increases in structural heterogeneity ranging from 4 to 18 additional components within elements. Larger bio-SUDS elements returned higher index scores, but the relative score increases were substantial for all bio-SUDS and in the range of a factor of 2–5.5. Increased terrain differences, meandering edges, stones, gravel, boulders, deadwood, and brown roof-like vegetation were the components most often employed in the bio-SUDS designs. In conclusion, implementation of bio-SUDS has potential to increase structural habitat heterogeneity thereby providing habitat for biodiversity in urban green areas. The developed bio-SUDS index can assist in future assessments of ecological qualities in designs and real-world SUDS elements.