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AbstractIn this paper, we propose a discrete-time risk model with the claim number following an integer-valued autoregressive conditional heteroscedasticity (ARCH) process with Poisson deviates. In this model, the current claim number depends on the previous observations. Within this framework, the equation for finding the adjustment coefficient is derived. Numerical studies are also carried out to examine the impact of the Poisson ARCH dependence structure on the ruin probability. 相似文献
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Mortality among elder abuse victims in rural Malaysia: A two-year population-based descriptive study
Raudah Mohd Yunus MPH Noran Naqiah Hairi PhD Wan Yuen Choo PhD Farizah Mohd Hairi PhD Rajini Sooryanarayana MPH Sharifah Nor Ahmad MD 《Journal of elder abuse & neglect》2017,29(1):59-71
Our study aims at describing mortality among reported elder abuse experiences in rural Malaysia. This is a population-based cohort study with a multistage cluster sampling method. Older adults in Kuala Pilah (n = 1,927) were interviewed from November 2013 to May 2014. Mortality was traced after 2 years using the National Registration Department database. Overall, 139 (7.2%) respondents died. Fifteen (9.6%) abuse victims died compared to 124 (7.0%) not abused. Mortality was highest with financial abuse (13%), followed by psychological abuse (10.8%). There was a dose-response relationship between mortality and clustering of abuse: 7%, 7.7%, and 14.0% for no abuse, one type, and two types or more, respectively. Among abuse victims, 40% of deaths had ill-defined causes, 33% were respiratory-related, and 27% had cardiovascular and metabolic origin. Results suggest a link between abuse and mortality. Death proportions varied according to abuse subtypes and gender. 相似文献
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The systemic impact of adoption suggests the need to explore adoption-specific curricula in baccalaureate and graduate degree programs. Using a convenience sample, the present exploratory study collected data in two phases. Phase one included email requests for adoption syllabi to professional email lists and to identified faculty with adoption research and practice expertise. In phase two, 22 faculty members who responded by emailing syllabi were invited to participate in an online survey. Results only begin to unveil what we know about adoption-specific curricula in higher education. Suggestions for future research are discussed. 相似文献
4.
Career adaptability manifests itself through 4 self‐regulated internal resources for coping with occupational challenges and transitions: concern, control, curiosity, and confidence. Few studies have examined career adaptability specifically in the Hong Kong context. The Career Adapt‐Abilities Scale–China Form (CAAS‐China; Hou, Leung, Li, Li, & Xu, 2012 ) was administered, along with measures of self‐esteem and social support, to 522 Hong Kong Chinese undergraduate students. Results indicated that the CAAS‐China is a reliable and valid instrument for use with these students. Data also showed that self‐esteem was strongly associated with career adaptability, and this relationship was partially mediated by perceived social support. Implications for careers counseling in universities and colleges are discussed. 相似文献
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The Career‐Related Parent Support Scale (CRPSS; Turner, Alliman‐Brissett, Lapan, Udipi, & Ergun, 2003 ) was translated and modified to form the 24‐item Chinese version of the scale. As in the case of the original CRPSS, the Chinese version includes 4 subscales (Instrumental Assistance, Emotional Support, Verbal Encouragement, and Career‐Related Modeling). The Chinese version of the CRPSS was validated in this study with a sample of Hong Kong high school students (N= 677). Reliability analyses showed that the total scale and subscales were internally consistent. The results of the exploratory factor analysis and confirmatory factor analysis suggested that the Chinese version of the CRPSS provided adequate indicators of Chinese adolescents’ perceptions of parent support for their career aspirations. 相似文献
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Winston T. H. Koh 《Social Choice and Welfare》2005,25(1):207-220
We present a general framework to study the project selection problem in an organization of fallible decision-makers. We show
that when the organizational size and the majority rule for project acceptance are optimized simultaneously, the optimal quality of decision-making, as determined by the decision criterion, is invariant, and depends only on the expertise of decision-makers. This result clarifies that the circumstances under which the decision-making
quality varies with the organizational structure are situations where the organizational size or majority rule is restricted
from reaching the optimal level. Moreover, in contrast to earlier findings in the literature that the hierarchy and the polyarchy
are generally sub-optimal structures, we show that when the size, structure and decision criterion are simultaneously optimized,
the hierarchy and the polyarchy are in fact the only possible optimal organizational structures when decision-making costs are present.
相似文献
Winston T. H. KohEmail: |
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A more generalized stirling distribution of the second kind (MGSDSK) is introduced in this paper as the distribution of the sum of the independent but not identically distributed left truncated Poisson variables. Properties of MGSDSK are studied. The recursion relation and decomposition of MGSDSK are obtained. The rth moment is also found and a new recurrence relationship for them are given. A new incomplete exponential function is utilized in the derivations. A MVU estimate of the p, d, f. of MGSDSK is obtained. 相似文献