Career Maturity and Quality of Life in Korean Adolescents: A Cross‐Lagged Panel Design

This study investigated the effectiveness of a short‐term career exploration program for enhancing career maturity and quality of life in Korean adolescents. It further tested causality between career maturity and quality of life defined as school satisfaction and subjective well‐being. We used a cross‐lagged panel design to examine the links among career maturity, subjective well‐being, and school satisfaction, measured both before and 4 weeks after a career exploration program for 224 Korean middle school students. Study results indicated that 4 weeks after the program implementation, there were significant increases in career maturity, subjective well‐being, and school satisfaction. A significant causal relationship from the pretest score of career maturity to the posttest score of school satisfaction was found. Results suggest that the implementation of a short‐term career exploration program designed to increase career maturity also significantly promotes school satisfaction. Limitations of the study are discussed along with suggestions for future research.     

The Associations between income,informal social networks,and health among older adults in South Korea: A multi‐group analysis based on the level of age‐friendly environments

The aim of the present study was to empirically investigate the role of age‐friendly environments (AFE) on the associations between income, informal social networks, and health among South Korean older adults. We used data from the “2017 Age Integration Survey” collected nationally and ultimately analyzed 615 older adults over 50 years of age. Structural equation modeling and multi‐group analysis were used to test the hypothesis. Specifically, two groups of perceived levels of AFE (top 25%, bottom 25%) were compared in order to examine the moderating effects. The results indicated that poor income and scarce informal social networks each had a significantly adverse impact on health. However, the effect of income on health was no longer significant for older adults living in environments that were more age‐friendly. In both groups, the presence of fewer informal social networks adversely impacted health, although the sizes of the effects decreased when the level of AFE perceived by older adults was improved. Finally, several implications of the study findings were discussed.     

Relative Performance Evaluation and Risk Taking in Delegated Investment Decisions*

Providing proper incentives to firm managers is increasingly important in the current competitive environment. Analytical research has suggested that evaluating a manager's performance relative to that of a peer group, in conjunction with standard-based pay, can induce efficient risk-sharing between firm owners and managers while maintaining the latter's incentives to exert effort. To date, direct empirical tests of this proposition have not been reported. This study uses a laboratory experiment to test the effect of relative performance evaluation on the risk-aversion of delegated investment decisions. Project-specific risk is operationalized using operating leverage, in part because the variability of a project's operating profits generally increases with this variable, and in part because many of the new manufacturing approaches held to be important to competitive advantage require significant capital investments and attendant increases in operating leverage. Across two levels of environmental uncertainty, subjects under a relative (as opposed to absolute) performance standard selected investments with significantly higher project-specific risk. Also, as environmental uncertainty increased, subjects under an absolute standard significantly reduced the riskiness of their investments. In contrast, subjects shielded from environmental uncertainty by a relative standard chose investments of about equal riskiness under both low and high uncertainty conditions. If supported by future research, these findings would suggest that relative performance evaluation may reduce managers' reluctance to adopt risky capital investments, especially in firms operating in high-risk economic or technological environments.     

The role of technology in reconfiguring volunteer management in nonprofits in Hong Kong: Benefits and discontents

There is plenty of evidence demonstrating that volunteering generates benefits for individuals and society at large. However, the role of technology used in recruiting, managing, and retaining volunteers in nonprofits is underexplored in East Asia. Drawing from in‐depth interviews with representatives of eight nonprofits, we examine how technology reconfigured volunteer management in nonprofits, identify its limitations and shortcomings, and discuss strategies in which technology can be utilized to enhance the effectiveness of volunteer management. We found, through this study, that the use of technology reconfigured key aspects of volunteer management: improving recruitment by enlarging and diversifying the volunteer pool; enhancing precision and speed of volunteer matching; improving nonprofits’ ability to recruit professionals; and reducing overall administrative burden of volunteer management within these nonprofits. However, challenges in volunteer management resulting from technology uptake were also observed, including resistance among frontline staff to adopt technology, and volunteer accountability and quality assurance. Specifically, it was found through this study that the extent to which nonprofits are able to effectively utilize technology in volunteer management is contingent on how well volunteer managers are able to actualize the notion of capacity optimization, create a friendly volunteer environment, and build rapport with volunteers. Implications for enhancing organizational capacity in volunteer management vis‐à‐vis the role of technology in the third sector are further discussed.     

Grandparent caregiving and cognitive functioning among older people: evidence from Korea

Review of Economics of the Household - Caregiving for grandchildren is becoming common and plays an important role in the childcare system in many countries. This study examines whether caregiving...     

The analysis of tumorigenicity data using a frailty effect

In animal tumorigenicity data, the time of occurrence of the tumor is not observed because the existence of the tumor is looked for only at either the time of death or the time of sacrifice of the animal. Such an incomplete data structure makes it difficult to investigate the impact of treatment on the occurrence of tumors. A three-state model (no tumor–tumor–death) is used to model events that occurred sequentially and to connect them. In this paper, we also employed a frailty effect to model the dependency of death on tumor occurrence. For the inference of parameters, an EM algorithm is considered. The method is applied to a real bladder tumor data set and a simulation study is performed to show the behavior of the proposed estimators.     

Adaptive Sequential Preventive Maintenance Policy and Bayesian Consideration

This article proposes an adaptive sequential preventive maintenance (PM) policy for which an improvement factor is newly introduced to measure the PM effect at each PM. For this model, the PM actions are conducted at different time intervals so that an adaptive method needs to be utilized to determine the optimal PM times minimizing the expected cost rate per unit time. At each PM, the hazard rate is reduced by an amount affected by the improvement factor which depends on the number of PM's preceding the current one. We derive mathematical formulas to evaluate the expected cost rate per unit time by incorporating the PM cost, repair cost, and replacement cost. Assuming that the failure times follow a Weibull distribution, we propose an optimal sequential PM policy by minimizing the expected cost rate. Furthermore, we consider Bayesian aspects for the sequential PM policy to discuss its optimality. The effect of some parameters and the functional forms of improvement factor on the optimal PM policy is measured numerically by sensibility analysis and some numerical examples are presented for illustrative purposes.     

Variations in trusteeship: cases from Boston and Cleveland, 1925–1985

Case studies suggest that important changes in the composition and structure of boards of trustees of non-profit organisations have occurred in recent decades. The nature of these changes, and how they may vary across industry and locale, are not well documented. This pilot study compares changes in structure and board membership of three elite non-profit organisations in two cities at three points in time: 1925, 1955 and 1985. This study focuses on governing boards of the major art museum, largest non-profit hospital and local United Way of Boston and Cleveland. Board members' biographical data are used to assess models of board diversification based on environmental pressures and changes in local elites. We find evidence that trusteeship varies historically, regionally and across industries, and we set the stage for broader-based empirical comparative work on changes in non-profit boards of trustees.     

Impact of Adult Sons’ Incarceration on African American Mothers’ Psychological Distress

This longitudinal study examines the effect of sons’ incarceration on their mothers’ psychological distress. Interviews were conducted over the life course with a community cohort of African American mothers who had children in first grade in 1966 – 1967 when the study began (N =615). Thirty years later, their sons had significant rates of incarceration (22.4%). Structural equation modeling showed that the more recent the incarceration, the greater the mothers’ psychological distress, even controlling for earlier socioeconomic status and psychological well‐being. Financial difficulties and greater burden of grandparenting are associated with having a son incarcerated and they mediate the relationship between the incarceration and a mother’s psychological distress. Results suggest that incarceration has important effects on family members’ well‐being.     

仪式、归属与重构——中国彝族“尼木”祭祖送灵仪式与韩国棺头洁净仪式比较研究

通过对中国彝族“尼木”仪式和韩国韩民族“洁净祭”仪式的含义、程序与功能进行对比后,发现二者形式差异和性质相同。仪式差异点：彝族“尼木”仪式是两个父母去世后才进行,而韩民族是死者出殡前晚上进行;彝族用竹子制作灵牌代表亡灵,韩民族是用死者衣物代表亡灵;彝族是通过毕摩念经和象征行为模拟来完成,韩民族是巫堂以多种专门的乐器伴奏下用歌曲或说话来完成。仪式共同点：主要以五个程序构成;宗旨是将亡灵送往极乐世界;目的是通过象征仪式和娱乐活动把悲伤绝望转化为希望和喜乐,追求人类延续和幸福。彝族的“尼木”仪式和韩民族“洁净祭”在宗教意义上都是以象征的形式把亡灵送往极乐世界而变成祖灵,重构了对立统一的人界和神界,以便达到重构人们和谐生活秩序的目的。