Finding the majority-rule equilibrium under lexicographic comparison of candidates

This paper considers the well studied problem of the existence of an undominated point, under the assumption of lexicographic preferences of voters, as espoused by Taylor in [24]. We extend Taylor's model to situations were we allow for (i) voters to have different ranings of the issues in n-dimensional issue space and (ii) a candidate to be disregarded by a voter if his stand on any one or more of the issues involved in the election is perceived to be too extreme by the voter and (iii) combinations of (i) and (ii). We extend the results of Taylor by demonstrating the non-existence of an equilibrium point in these models in general and then showing that under special circumstances, specialized variants of the “median” point(s) represent equilibrium or undominated points in these models too. Thus a model of voting behavior results that is closer approximation of reality in that historically incumbents tend to win. The primary conclusion of the paper is to suggest that incumbents tend to have an advantage when the election process is characterized by a large presence of special interests or as information becomes more expensive to acquire. Received: 13 February 1996 / Accepted: 27 March 1997     

Posttraumatic Growth in Relationally Betrayed Women

The research literature on relational betrayal in a committed relationship has focused on the resulting trauma from the betrayal; however, few studies investigated the potential for posttraumatic growth following a relational betrayal. This study investigated the presence of posttraumatic growth in relationally betrayed women. The research focused on women's perceptions of the relational betrayal, and factors that facilitated posttraumatic growth. Results indicated relationally betrayed women perceived the betrayal as a traumatic event, to the extent that some met criteria for PTSD diagnosis. The passage of time was significant corollary to posttraumatic growth when moderated by a PTSD diagnosis. Finally, certain resources were reported to be more helpful than others in the development of posttraumatic growth. Clinical implications are presented.     

A kinder,gentler gentrification: racial identity,social mix and multiculturalism in Toronto’s Parkdale neighborhood

This paper intervenes on the contemporary Canadian discourse that equates bourgeois self-making practices of progressive urban subjects with moves towards genuine spatial justice. Emerging from a three-year project assessing gentrification Toronto’s Parkdale neighborhood, the author probes the dissonance between the triumphalist rhetoric circulated by an anti-gentrification elite and the lived realities of displacement and violence in poor, racialized and mad communities. Using ethnographic observation and analysis of extensive interview data, this paper suggests that the ideas of inclusive urban development often rely on the ejection of intolerable bodies from the sphere of urban life and the simultaneous exaltation of ‘enlightened’ middle-class subjects as the authors and protagonists of social change. Yearning for a better future, this paper functions as a cautionary tale, a warning that so long as race and gender remain secondary sites of investigation and action, work for urban emancipation will reinforce those systems of domination it hopes to oppose.     

Predictive Modeling and Categorizing Likelihoods of Quarantine Pest Introduction of Imported Propagative Commodities from Different Countries

The present study investigates U.S. Department of Agriculture inspection records in the Agricultural Quarantine Activity System database to estimate the probability of quarantine pests on propagative plant materials imported from various countries of origin and to develop a methodology ranking the risk of country–commodity combinations based on quarantine pest interceptions. Data collected from October 2014 to January 2016 were used for developing predictive models and validation study. A generalized linear model with Bayesian inference and a generalized linear mixed effects model were used to compare the interception rates of quarantine pests on different country–commodity combinations. Prediction ability of generalized linear mixed effects models was greater than that of generalized linear models. The estimated pest interception probability and confidence interval for each country–commodity combination was categorized into one of four compliance levels: “High,” “Medium,” “Low,” and “Poor/Unacceptable,” Using K‐means clustering analysis. This study presents risk‐based categorization for each country–commodity combination based on the probability of quarantine pest interceptions and the uncertainty in that assessment.     

Cybersex and the E‐teen: What Marriage and Family Therapists Should Know

Adolescents who use the Internet regularly (the “e‐teen”) present a new set of challenges for marriage and family therapists. This article introduces marriage and family therapists to (a) the basic technological concepts and unique psychological characteristics of the Internet important in understanding and addressing adolescent online sexual behavior, (b) the appropriate developmental expectations for teens online, including risk‐taking behaviors and critical decision‐making skills, and (c) suggested strategies for assessment, prevention, and intervention when dealing with problematic online sexual behavior in adolescents. Marriage and family therapists cannot ignore the role the Internet plays in adolescent sexual development and its implication for the family. This article will serve as a primer for the marriage and family therapist when presented with adolescents who engage in online sexual behaviors.     

THE 1985-86 OIL PRICE COLLAPSE AND AFTERWARDS: WHAT DOES GAME THEORY ADD?

This paper focuses on the strategies used by OPEC to generate cartel profits over the period 1983-90. The evidence supports the hypothesis that OPEC adopted a swing producer strategy from 1983 to 1985. But when Saudi Arabia's profits fell below the level of Coumot profits in the summer of 1985, it abandoned the role of swing producer, driving prices to the Cournot level. Subsequently, Saudi Arabia appears to have adopted a tit-for-tat strategy designed to punish excessive cheating by other OPEC members. Based on these findings, the strengths and limitations of game theory are assessed.     

Specific Cases,Techniques and Approaches; Narrative Behaviour Therapy? Integration in Practice1

This is a clinically‐oriented paper which seeks to describe the integration of narrative and cognitive‐behavioural approaches in working with children and adolescents. It is suggested that a CBT model can be augmented by typical narrative manoeuvres. For example, it is often helpful to relieve children as quickly as possible of the ‘problem‐saturated story’ with which they and their parents enter therapy. The narrative approach of ‘externalising the problem’ can achieve this within the first session, and helps the family to a) find a good working relationship with the therapist, b) clarify goals, and c) embrace the possibility of change. The use of CBT and narrative therapy in conjunction is illustrated by a case study of obsessive compulsive disorder in a young adolescent girl.     

新千年的怀特海、中国及全球民主

怀特海所创立的过程哲学和中国传统哲学有许多相似相通之处。尽管这两种思想属于不同的文化体系 ,但在上一个世纪均遭到人们的不同程度的冷遇。进入 2 1世纪 ,随着世界格局的千变万化 ,怀特海的过程哲学和中国传统哲学越发凸显出它们的合理价值 ,并为现代社会的发展提供了可资借鉴的思想观念。文章从诸多方面论证了这两种思想正在成为现代社会发展必不可少的思想资源     

The value of conducting door-to-door surveys

This paper argues that door-to-door surveys are a valuable tool for collecting information about health and the environment in urban areas in a manner consistent with community-based participatory research principles. We describe in detail how a door-to-door survey on food shopping and physical activity was conducted with the primary food shopper in 514 households on 30 randomly selected blocks in West and Southwest Philadelphia over seven weeks during the summer of 2010. We identify the elements of our door-to-door protocol that had benefits for the quality of the data collected, flow of data collection, the perceived safety of interviewers and residents, and that informed subsequent phases of this multimethod four-year study of urban food and physical activity environments. We conclude that door-to-door surveys are appropriate and valuable in certain research contexts, when spending time in a community, conducting observations and building relationships are central to the goals and success of a study.