Strategy-proofness of continuous aggregation maps

 We consider continuous aggregation maps (e.g., social welfare functions). By assuming that the voters have preferences over social outcomes, we regard the social decision procedure as a noncooperative game, with the aggregation map as a game form. The map is called strategy-proof if it is a Nash equilibrium that the voters report their most preferred outcomes. We give sufficient topological conditions on the space of outcomes so that only dictatorial maps are strategy-proof. Received: 28 February 1994/Accepted: April 22, 1996     

TSP in spreadsheets—A fast and flexible tool

The traveling salesman problem (TSP) is well-known and many specially developed solution procedures have been constructed to solve particular variants of it. This paper considers several different variants of TSP. However, developing tailored solution procedures for each is impractical. These problems are non-deterministic polynomial-time hard (NP hard). Solving them using standard linear programming/mixed integer programming (LP/MIP) solvers has therefore only been regarded to be feasible for very small problems. A careful consideration of the problem formulation may facilitate efficient software utilization, and for real-world problems this can have a considerable impact. Problems that were previously regarded as large and unwieldy are now easily solvable using spreadsheets, thanks to the recent advancement in general optimization software.     

Veiled and Vulnerable: The Other Side of Grandiose Narcissism

This paper provides a consideration of a broadened scope of pathological narcissism, with particular attention towards the hidden and vulnerable aspects of this clinical phenomenon. The narcissism construct is briefly reviewed, along with contemporary issues in understanding the different presentations of narcissistic dysfunction. Selections from the theoretical literature are then explored in order to offer a nuanced conceptualization of the vulnerable side of pathological narcissism. Clinical implications of these perspectives are then discussed, along with clinical case material, to illustrate the presentation and treatment of narcissistic vulnerability.     

Cross-National Measurement Invariance of the Teacher and Classmate Support Scale

The cross-national measurement invariance of the teacher and classmate support scale was assessed in a study of 23202 Grade 8 and 10 students from Austria, Canada, England, Lithuania, Norway, Poland, and Slovenia, participating in the Health Behaviour in School-aged Children (HBSC) 2001/2002 study. A multi-group means and covariance analysis supported configural and metric invariance across countries, but not full scalar equivalence. The composite reliability was adequate and highly consistent across countries. In all seven countries, teacher support showed stronger associations with school satisfaction than did classmate support, with the results being highly consistent across countries. The results indicate that the teacher and classmate support scale may be used in cross-cultural studies that focus on relationships between teacher and classmate support and other constructs. However, the lack of scalar equivalence indicates that direct comparison of the levels support across countries might not be warranted.     

The divorce process

This is a study of the process of divorce. Unstructured interviews were conducted with divorced individuals by both the male and female authors. It was found that problems such as adultery, alcohol abuse, or financial difficulties were aspects of nearly all the broken marriages. However, these problems could not be viewed as thecauses for the divorce. Instead, problems were used as a basis for escalating a crisis in order to dissolve long-standing, deep emotional bonds. Specific problems became tools in the process of creating an unlivable situation culminating in divorce. The crisis created by the divorcing couple became a reality for their acquaintances. Divorcees used a variety of strategies in the struggle for allegiances following divorce. These strategies and the reactions of friends and relatives are discussed.     

Using civil representation to reduce delinquency among troubled youth

Team Child is designed to provide civil legal representation for very troubled delinquent youth to improve their access to needed education programs, mental health services, and family services. Better provision of these services is intended to reduce delinquency and potentially avoid the long-term incarceration of these youth. This article uses an incidental truncation model to evaluate two Team Child programs in Florida. The authors find the programs not to be effective in reducing recidivism among the youth but to be effective in reducing the arrest rate of the recidivating juveniles. The results indicate a reduction of 11% to 23% of arrests after treatment for the Team Child group.     

What cultural hierarchy? Cultural tastes,status and inequality

Research on cultural stratification often draws on Bourdieu's misrecognition model to interpret socioeconomic gradients in cultural tastes and participation. In this model, an assumed cultural hierarchy leads individuals to adopt cultural tastes and behaviours whose status is congruent with that of their socioeconomic position (SEP). Yet, this assumed cultural hierarchy remains opaque. In this paper, we derive and test three empirical implications of the cultural hierarchy: (1) cultural activities have different status (recognition); (2) individuals in high and low SEPs have similar perceptions of the status of cultural activities (necessary condition for misrecognition); and (3) individuals prefer and engage in cultural activities whose status matches that of their SEP (status congruence). We collected survey data in Denmark and find that cultural activities differ in terms of perceived status (e.g., opera has higher perceived status than flea market), status perceptions are similar in high- and low-SEP groups and individuals prefer activities whose status matches that of their SEP. These results are consistent with the idea that a cultural hierarchy exists that sustains SEP gradients in cultural tastes and participation.     

Social Desirability Bias in Pornography-Related Self-Reports: The Role of Religion

In a large online survey of undergraduates, we examined the degree to which social desirability concerns might bias pornography-related self-reports and whether these biases are stronger among highly religious participants than among less-religious ones. Recent state-level analyses have put forward a controversial suggestion that religious individuals tend to search for pornography more than their less-religious peers, despite self-reports to the contrary. Such results could be explained by a social-desirability bias against reporting the consumption of pornography, one that applies specifically to religious individuals. Though our findings are limited to undergraduates in the U.S. Midwest, we found some evidence that the desire to positively self-present (as measured by the Marlowe–Crowne social desirability scale) may bias reports of pornography consumption and perceptions of pornography’s effects (e.g., perceptions of addictiveness). However, contrary to popular sentiment—and our own hypotheses—we found no evidence for and much evidence against the suggestion that religious individuals have a more pronounced social desirability bias against the reporting of pornography consumption than the irreligious. Interaction terms assessing that possibility were either nonsignificant or significant in the reverse direction.     

Secular Trends in Alcohol Drinking Among Danish 15‐Year‐Olds: Comparable Representative Samples From 1988 to 2010

This study describes the secular trends in weekly intake of beer, wine, liquor, and drunkenness among 15‐year‐olds 1988–2010 (total N = 8,701), a period with several policy initiatives regarding alcohol in Denmark. Data from seven comparative and representative school surveys conducted in 1988, 1991, 1994, 1998, 2002, 2006, and 2010 were used. The proportion of 15‐year‐olds in Denmark who drank alcohol and were drunk increased from 1988 to 2002, but decreased substantially to 2010; for example, the proportion of 15‐year‐old girls who drank beer at least weekly increased from 15% in 1988 to 31% in 2002 and decreased to 7% in 2010. We hypothesize that age limits for purchasing alcohol may have resulted in a decrease in young people's alcohol use.