Using a genetic algorithm-based RAROC model for the performance and persistence of the funds

Assisting fund investors in making better investment decisions when faced with market climate change is an important subject. For this purpose, we adopt a genetic algorithm (GA) to search for an optimal decay factor for an exponential weighted moving average model, which is used to calculate the value at risk combined with risk-adjusted return on capital (RAROC). We then propose a GA-based RAROC model. Next, using the model we find the optimal decay factor and investigate the performance and persistence of 31 Taiwanese open-end equity mutual funds over the period from November 2006 to October 2009, divided into three periods: November 2006–October 2007, November 2007–October 2008, and November 2008–October 2009, which includes the global financial crisis. We find that for three periods, the optimal decay factors are 0.999, 0.951, and 0.990, respectively. The rankings of funds between bull and bear markets are quite different. Moreover, the proposed model improves performance persistence. That is, a fund's past performance will continue into the future.     

Urban Quality of Life: A Case Study of Guwahati

This paper studies quality of life (QOL) in urban environment. The term environment has been used in broader sense, which includes physical, social and economic environment. A framework has been proposed which posits that QOL comprises objective condition of living and satisfaction from such living condition constitutes QOL. Such objective condition refers to objective QOL and satisfaction refers to subjective QOL. Dimension of QOL has been found to be multi dimensional. It has been found that both objective and subjective condition is important dimension of QOL. But correlation between objective and subjective QOL has been found not to be high. At the same time it has been found that satisfaction from condition of traffic is the lowest among all satisfaction variables.     

Sizing up Australia: toward a national sizing survey

This paper reports on the outcomes of research on the use of anthropometric data by designers of Australian workplaces and products used in Australian workplaces. Australian designers were asked how they used anthropometric data, and about the adequacy of data that were available to them for their needs as designers. In addition to a review of published and grey literature, designers were surveyed and asked for detailed information about their use of anthropometric data and about their needs. Thirty-two completed questionnaires were received. Two focus groups of designers were conducted; 13 people attended in Adelaide and 16 in Melbourne. The data indicated that designers either did not use anthropometric data at all or had difficulty finding data that were reliable and relevant to their specific needs. In response to the findings the Human Factors and Ergonomics Society of Australia developed a Special Interest Group for anthropometry that currently has over 150 members. The Group is actively lobbying government for an Australian Sizing Survey, so this research is an important stimulus to a major policy investment for Australia.     

America’s “Whiz Kids”? Ambivalence and the Model Minority Stereotype

Abstract

Asian Americans are commonly stereotyped as the “model minority”: smart, diligent, quiet, and conformist. While at the outset the model minority stereotype appears to be positive, consensus in academia is that this stereotype has significant negative consequences for those to whom it is applied. Moreover, the literature has repeatedly documented that the model minority stereotype is largely unfounded—that is, the model minority is a myth. The present study employs in-depth interviews with Asian American college students to gauge campus climate. Respondents tell dual tales: they reject the assumption that Asian Americans are the model minority while lending significant support for it via their narratives. Elements of the model minority stereotype are repeatedly invoked as respondents paint highly positive portraits of themselves. While the negative implications of the model minority stereotype are acknowledged, the possibility that this stereotype serves largely positive functions—for some Asian Americans—is considered, thereby adding much-needed nuance to the debate surrounding the model minority stereotype.     

Role of Parent and Peer Relationships and Individual Characteristics in Middle School Children's Behavioral Outcomes in the Face of Community Violence

This study examines processes linking inner‐city community violence exposure to subsequent internalizing and externalizing problems. Hypothesized risk and protective factors from 3 ecological domains—children's parent and peer relationships and individual characteristics—were examined for mediating, moderating, or independent roles in predicting problem behavior among 667 children over 3 years of middle school. Mediation was not found. However, parent and peer variables moderated the association between exposure and internalizing problems. Under high exposure, normally protective factors (e.g., attachment to parents) were less effective in mitigating exposure's effects than under low exposure; attachment to friends was more effective. Individual competence was independently associated with decreased internalizing problems. Variables from all domains, and exposure, were independently associated with externalizing problems. Protective factors (e.g., parent attachment) predicted decreased problems; risk factors (e.g., friends' delinquency) predicted increased problems. Results indicate community violence reduction as essential in averting inner‐city adolescents' poor behavioral outcomes.     

Beyond image repair: Suggestions for crisis communication theory development

This commentary explores whether and how crisis communication theory needs to be adapted to account for the rise of social media. Through a review of existing theory, we offer recommendations for future research in the evolving media landscape.     

COVID Health Structure Index: The Vulnerability of Brazilian Microregions

Social Indicators Research - Many developing countries have highly unequal health systems across their regions. The pandemic of COVID-19 brought an additional challenge, as hospital structures...     

Linking Human Development and the Financial Responsibility of Regions: Combined Index Proposals Using Methods from Data Envelopment Analysis

Social Indicators Research - Several indicators on human development and capabilities have been introduced in recent decades that measure the absolute level of deprivations and freedoms of people....     

The Effect of Gender on Sex-Role Attitudes

Abstract

An examination of the contradiction between college student studies and national public opinion polls.

The evidence concerning the existence and magnitude of gender differences in sex-role attitudes is contradictory. A large number of studies, based primarily on college samples, have reported significant gender differences in the sex-role attitudes of young adults; males have been found to be more traditional than females. However, studies based on national samples including all age and educational groups have not found consistent gender differences. In order to investigate this contradiction, NORC General Social Survey was aggregated from the years 1974 through 1978 to create a data set that included a large number of young adults who were currently attending or who had recently attended college. Both age and education were found to be significant predictors of sex-role attitudes, but for most of the items examined gender differences were not found to be larger for young adults than for older adults. For both age groups larger gender differences were found in items pertaining to caring for children than for items pertaining to women's roles in the public sphere.