The Limits of Catastrophe Aversion

We discuss the management of catastrophe-risks from a theoretical point of view. The concept of a catastrophe is informally and formally defined, and a number of desiderata for catastrophe-averse decision rules are introduced. However, the proposed desiderata turn out to be mutually inconsistent. As a consequence of this result, it is argued that the "rigid" form of catastrophe aversion articulated by, for example, the maximin rule, the maximum probable loss rule, (some versions of) the precautionary principle, and the rule proposed in Ekenberg et al. (1997, 2000) should be given up. An alternative form of "non-rigid" catastrophe aversion is considered.     

Men's and Women's Interpretation and Endorsement of Items Measuring Self-Reported Heterosexual Aggression

Early research on sexual aggression (e.g., sexual coercion, sexual assault, and rape) mainly focused on men as perpetrators and women as victims; more recently, researchers have begun to investigate women as perpetrators of sexual aggression as well. However, most measures of sexual aggression perpetration were designed for use with men and have not been well validated with women. This study sought to examine two different measures of sexual aggression perpetration in terms of their convergent validity for both men and women and to examine gender differences and similarities in item interpretation using open-ended inquiries. Participants were 590 individuals (395 women, 195 men) with a mean age of 25 years (SD = 8.1) recruited from an undergraduate psychology subject pool and an online convenience sample. The majority of the sample was White (65.4%) and Black (20.3%). All measures were completed online anonymously. Results suggested that convergent validity for the two measures was less than optimal, particularly for women. Further, item interpretation analyses revealed that, compared to men, more than twice the percentage of women provided a false-positive response to one of the measures, suggesting that women may be more likely than men to endorse self-report perpetration items incorrectly.     

World City Networks and Global Commodity Chains: towards a world-systems' integration

There are two literatures that explicitly describe the spaces of flows that constitute contemporary globalization – World City Network analysis and Global Commodity Chain analysis. We explore the possibilities of their integration by returning to their common origins in world-systems analysis. Each model is described and critiqued and it is argued that each can be used to address some of the other's limitations. This is illustrated through world city process additions to understanding the coffee commodity chain and commodity chain additions to understanding Mexico City and Santiago's positioning in the World City Network. This complementarity is just a first step towards a more complete integration; the conclusion describes the next steps towards just such a research agenda.     

Influences of landscape and lifestyle on home energy consumption

Rapid urbanization coupled with concerns about global climate change has renewed interest in energy conservation and carbon dioxide emissions reduction. Urban residential energy consumption is a valuable place to start reducing emissions, and urban tree planting programs have been both proposed and utilized as an energy conservation mechanism. Home energy savings associated with urban trees are often quantified using models because of the many complex interactions among variables that can influence home energy use. However, recent empirical analyses have found that energy savings associated with trees may be minimal relative to other important factors like building characteristics and human behaviors. We surveyed 176 residents from four neighborhoods in Raleigh, NC with varying socio-economic characteristics to assess relationships between summer energy usage, tree cover, homeowner behavior, and building characteristics. As hypothesized, we found that building characteristics, demographics, and human behaviors were all significant variables in describing the variability in summertime home energy usage. Although, total percent tree cover 18?m around the home did not affect summertime energy use, the number of trees in the NE and NW quadrants around each household did predict home energy use. These results indicate that planting trees may not be a successful strategy for reducing energy use from the residential sector in the heavily forested Southeast; rather efforts should target conservation and efficiency.     

On variable bandwidth selection in local polynomial regression

The performances of data-driven bandwidth selection procedures in local polynomial regression are investigated by using asymptotic methods and simulation. The bandwidth selection procedures considered are based on minimizing 'prelimit' approximations to the (conditional) mean-squared error (MSE) when the MSE is considered as a function of the bandwidth h . We first consider approximations to the MSE that are based on Taylor expansions around h=0 of the bias part of the MSE. These approximations lead to estimators of the MSE that are accurate only for small bandwidths h . We also consider a bias estimator which instead of using small h approximations to bias naïvely estimates bias as the difference of two local polynomial estimators of different order and we show that this estimator performs well only for moderate to large h . We next define a hybrid bias estimator which equals the Taylor-expansion-based estimator for small h and the difference estimator for moderate to large h . We find that the MSE estimator based on this hybrid bias estimator leads to a bandwidth selection procedure with good asymptotic and, for our Monte Carlo examples, finite sample properties.     

A Content Analysis of Career Development Theory,Research, and Practice—2013

This annual review of the career counseling and development literature presents a content analysis of refereed journal articles published in 2013. Four research questions guided the analysis: (a) What content topics were included in career development articles published in refereed journals in 2013? (b) To what extent are theory, research, and practice integrated in career development articles published in refereed journals in 2013? (c) What variation exists in the characteristics of career development articles published in refereed journals in 2013? and (d) What variation exists in the content included in theory, research, and practice articles? A total of 360 unique topics were identified in 357 articles from 24 journals. Results indicated that topic content in journals evolved slowly with limited integration of theory, research, and practice. Implications are suggested for (a) future topic content; (b) better integration of theory, research, and practice; (c) education and training; (d) journal editorial policy; and (e) future content analyses of journal articles.     

Effect of Brief Staff‐Assisted Career Service Delivery on Drop‐In Clients

Brief staff‐assisted career counseling services based on cognitive information processing theory were evaluated using 138 drop‐in clients who completed pre‐ and postintervention self‐report measures of knowledge about next steps, confidence in making next steps, and anxiety about career concerns. Significant changes occurred in each dimension and were significantly associated with the quality of career adviser interaction. Participants rated the experience as highly positive. Decreases in anxiety about career concerns were unrelated to the intervention. Implications include that a brief service delivery model yields positive outcomes for many clients but requires adjustments in organizational culture, physical environment, practitioner approaches, and client expectations. Future research should examine relational variables related to decreased anxiety with a brief service delivery model, the degree to which this approach works with specific career needs, and client attributes leading to successful versus unsuccessful outcomes with this model.     

PRACTICAL SIGNIFICANCE AND PARTITIONING VARIANCE IN DISCRIMINANT ANALYSIS

This note sets forth a method for obtaining viable estimates of total discriminatory power in a discriminant analysis. In addition, a technique based upon this methodisgiven for assessing the overall relative importance of each predictor variable regardless of the number of discriminant functions. Two examples are given to illustrate application of the method.