Cumulants of random sum distributions

Consider a random variable S being the sum of a number N of independent and identically distributed random variables X_j (j = 1, 2, ...) where the number N is itself a non-negative integer-valued random variable independent of the X_j An explicit expression of the r-th cumulant of S is given in terms of the cumulants of N and X_j, Asymptotic properties of the distribution of S are also discussed.     

Disaster Management from a POM Perspective: Mapping a New Domain

We have reviewed disaster management research papers published in major operations management, management science, operations research, supply chain management and transportation/logistics journals. In reviewing these studies, our objective is to assess and present the macro level “architectural blue print” of disaster management research with the hope that it will attract new researchers and motivate established researchers to contribute to this important field. The secondary objective is to bring this disaster research to the attention of disaster administrators so that disasters are managed more efficiently and more effectively. We have mapped the disaster management research on the following five attributes of a disaster: (1) Disaster Management Function (decision‐making process, prevention and mitigation, evacuation, humanitarian logistics, casualty management, and recovery and restoration), (2) Time of Disaster (before, during and after), (3) Type of Disaster (accidents, earthquakes, floods, hurricanes, landslides, terrorism and wildfires etc.), (4) Data Type (Field and Archival data, Real data and Hypothetical data), and (5) Data Analysis Technique (bidding models, decision analysis, expert systems, fuzzy system analysis, game theory, heuristics, mathematical programming, network flow models, queueing theory, simulation and statistical analysis). We have done cross tabulations of data among these five parameters to gain greater insights into disaster research. Recommendations for future research are provided.     

Recurrence formula on the joint distribution of sample skewness and kurtosis under normality

Abstract

Two recurrence relations with respect to sample size are given concerning the joint distribution of skewness and kurtosis of random observations from a normal population: one between the probability density functions and the other between the product moments. As a consequence, the latter yields a recurrence formula for the moments of sample kurtosis. The exact moments of Jarque-Bera statistic is also given.     

The Gap in the Subjective Wellbeing of M��ori and New Zealand Europeans Widened Between 2005 and 2009

We compared the self-reported subjective wellbeing of M??ori and New Zealand (NZ) Europeans in two NZ national postal samples. The first sample was collected in 2005 before the global financial crisis of 2007/2010. The second was collected in 2009 while the crisis was ongoing. Both samples contained large and arguably representative samples of the indigenous peoples of NZ, M??ori (Ns = 289 and 964) as well as the now-majority group, NZ Europeans (Ns = 2,769 and 4,073). NZ Europeans?? scores on the Personal Wellbeing Index (PWI) were near-identical across the 2005 and 2009 samples. However, M??ori, who were already lower than NZ Europeans on the PWI in 2005, showed a further decrease in 2009. We argue that this gap in wellbeing widened because material advantages experienced by NZ Europeans as a social group provides a systemic buffer which protects their personal wellbeing from the impact of economic privation. M??ori, who had already experienced systemic disadvantage, were not privileged with this buffer, and thus, the effects of the 2007/2010 global financial crisis impacted their personal wellbeing to a greater extent.     

Life on the seesaw: a qualitative study of suicide resiliency factors for young gay men

While considerable research has highlighted the factors that increase gay youth suicide risk, there has been much less emphasis on protective factors. Using grounded theory methodology, we explored the suicide resiliency in eight young gay men in Aotearoa/New Zealand. Common themes emerged, including positive social norms and conditions, high levels of support, identification with role models and high self-esteem. These were integrated with "known" risk factors to form the Seesaw Model of Gay Male Suicide. This model demonstrates that the balance between risk and resiliency may be the key to gay suicide. Depending on the balance of these factors, youth might either be resilient, attempt suicide, or teeter somewhere in between. The current findings indicate that gay youth suicide prevention requires efforts to increase resiliency factors for this group.     

Older transgender women in Thailand: views of service providers

The social and cultural construction of aging and how it is experienced by transgender women in Thailand has been neglected within the academic literature. This qualitative study explored how Thai lesbian, gay, bisexual, transgender, and intersex (LGBTI) service providers construct aging transgender women. Fourteen semi-structured in-depth interviews and one focus group were conducted in Thailand between 2016 and 2017 with LGBTI staff members whose roles ranged from volunteer to senior management. This research was a part of a larger doctoral research project. In considering both gender identity and older age, a clearer understanding is established on how notions of “older” for transgender women are constructed by service providers. Thematic analysis was undertaken, which established that there is a lack of heterogeneity and shared understanding of the concepts of “age” and “older transgender women.” This key finding was compounded by the invisibility of older transgender women in the Thai landscape, which limited the extent to which older transgender women have been included in targeted service provision. Older transgender women lack agency and voice and have failed to be involved in the shaping of services that meet their needs.     

Service user or service provider? How social work and human services students integrate dual identities

Students studying undergraduate social work and human services (SWHS) degrees may have used health and human service agencies, before and during their university education. Using services provides them with insights that are useful for professional practice. However, this article identifies that they experience a fear of shame and stigma revealing this during their studies. In examining interview data from 15 undergraduate SWHS students they recounted how they integrated their experience of being a service user into their professional development. It is argued that insider knowledge of services can provide them with valuable insights for practice. Students spoke about how positive experiences motivated them to study and provided models of effective practice, exemplifying its potential power to assist those in need. Negative experiences of service use can also be beneficial for learning what ‘not to do’. Although students found the experience of service use invaluable, they felt it was never acknowledged within the curriculum. Consequently, students interviewed in this study identified service users as ‘others’. They feared disclosing their own use of services due to perceived shame and stigma. Failing to provide opportunity for students to integrate their service user experience into their professional development creates a false dichotomy which does not acknowledge the intersection of these dual identities.     

Human resource development in a challenging financial environment: the case of a Greek bank

Changes in the external environment have reshaped the banking industry environment. Responding to that, Greek banks are adopting new strategies towards organizational development and realize that success requires adjustments to their HRD effort. The case example presented here refers to a leading Greek bank that was involved in a systematic HRD effort, based on the use of training interventions as a short-term solution to transit smoothly to the new era. The results of this effort are connected to the improvement of the bank's position in the market, despite its problematic past. However, the next challenge for the bank is to realize that the formation of a long-term development strategy and its integration with wider HR management policies are a priority.     

The Ethnic Identification of Same-Race Children in Intercountry Adoption

Intercountry adoption is a worldwide phenomenon that has been drawing an ever-increasing amount of research attention. The vast majority of that research has focused on transracial adoptive relationships and, in particular, the ethnic socialization and adjustment of children adopted into racially different families. Very little is known about the ethnic identity development of internationally adopted children who are racially similar to their adoptive parents. In the current study, 50 children adopted into New Zealand from Eastern Europe were interviewed on their ethnic self-identification and self-concept. The adoptees scored in the midrange on an ethnic identity scale and in the high range on a self-concept scale. However, no correlation was found between the two indices, suggesting that ethnic self-identification and self-concept operate independent of each other. These results, plus additional data collected during the interviews, are discussed in light of the New Zealand context and as they relate to the transracial adoption literature.