The “Costs” of informal care: an analysis of the impact of elderly care on caregivers’ subjective well-being in Japan

This paper examines the impact of providing informal care to elderly parents on caregivers’ subjective well-being using unique data from the “Preference Parameters Study” of Osaka University, a nationally representative survey conducted in Japan. The estimation results indicate heterogeneous effects: while informal elderly care does not have a significant impact on the happiness level of married caregivers regardless of whether they take care of their own parents or parents-in-law and whether or not they reside with them, it has a negative and significant impact on the happiness level of unmarried caregivers. These findings call for more attention to be paid to unmarried caregivers, who presumably receive less support from family members and tend to be more vulnerable to negative income shocks than their married counterparts.     

The Relationship Between Life Satisfaction Among Wives and Financial Preparedness of Households in Japan

The wealth gap between the rich and poor is widening and contributing to Japan’s shrinking middle class. This study examined concerns about the future and life satisfaction and their association with household financial preparedness (e.g., savings, investments, life insurance) among married women in Japan. Double-hurdle models assessed the probability of having savings and the amount of these savings, using the sample from the 2006 Japanese Panel Survey of Consumers (n = 1,206). Supporting earlier works from several other countries, concerns about the future were positively associated with the probability of having supplemental life insurance. Moreover, life satisfaction levels were positively associated with the probabilities of having savings, investments, and supplemental life insurance and with the amount of the investments. The findings suggest economic inequalities among women could widen in the future, as those who have and are expecting to have more financial resources are more likely to be prepared for future financial needs than those who do not.     

Area-based urban regeneration comparing Denmark and Japan

In this paper, we study the characteristics and results of two different approaches to urban regeneration which we have termed ‘Metagovernance’ and ‘Pluricentric coordination’ following. We studied this through a comparative study of area-based, participatory urban regeneration projects in Denmark and Japan, representing each one approach. The paper aims to clarify results of the two approaches in terms of five aspects of urban regeneration, relevant to the process and results: (1) strategic spatial improvement, (2) influence of the legal system and transparency of the processes, (3) empowerment of citizens and diversity of participants, (4) innovative capacity (diversity and creativity of the projects) and (5) continuity and flexibility of the projects. The paper concludes that each approach has strengths and weaknesses and that each country can learn from the other to strengthen future participatory urban regeneration.     

Private Military and Security Labour Migration: The Case of Fiji

Private military and security companies (PMSCs) are a fast‐growing global industry. While the rise of PMSCs and their activities have attracted much media coverage and growing scholarly attention, little is known about their sourcing of masses of military labour from the global South. This exploratory study examines the case of Fiji, whose thousands of ex/current disciplinary force personnel and unemployed men have been contracted by PMSCs to provide security work in Iraq and other high‐conflict areas. The article shows this to be an instance of unequal core‐periphery military labour trade, outlining its scale, processes and impacts on the migrants. It also illuminates how the migrants’ collective agency is demonstrated even under powerful structural constraints.     

Japanese male gay and bisexual identity

Few studies have ever dealt with Japanese male gay and bisexual identity. This exploratory study investigated gay and bisexual identity through interviews of 34 Japanese gay and bisexual men. Though Japan has unique cultural aspects that are different from Western countries, it can be shown that Western concepts or models of homosexual identity are applicable to a considerable extent to Japanese gay and bisexual men. The results of this study suggest that there are two distinct types of Japanese men sexually interested in men, which the author will call "bisexual" and "gay." These two types are compared in terms of three aspects: self-identity, sexual preference, and social identity and role. A significant number of respondents have careers or vocations in the arts. This study touches on the correlation between art and male-male sexual orientation in Japan.     

American Young Adults’ Rural-to-Urban Migration and Timing of Exits from Poverty Spells

This study examined the timing of exit from poverty among rural young adults who migrated to urban areas in the United States, using the National Longitudinal Survey of Youth 1979, with a focus on gender and marital status. Poverty spells that involved relocation to urban areas lasted longer than those that did not. Poverty exit rates upon relocation to urban areas declined each year the young adults remained in poverty, but the impact remaining in urban areas had on reduced poverty exit rates diminished when family characteristics, human capital, and labor market factors were controlled.This research was supported by the United States Department of Agricultural through the Georgia Agricultural Experiment Station and also by the Jagdish N. Sheth Foundations Association for Consumer Research Public-Purpose Dissertation Award. An earlier version of this paper was prepared for a presentation at the Population Association of America Annual Meeting 2001, Washington DC. We thank Deborah Godwin and anonymous reviewers for helpful comments and Karen Braxley for editorial assistance and insightful comments.     

Parental Expenditures on Children's Education

This study examined selected factors related to parents' allocation of money for children's primary and secondary education and, if money was spent on education, the variation in the amount spent. Cragg's double-hurdle model was utilized to analyze data from the 1996 Consumer Expenditure Survey on 331 families that spent money on their children's primary and secondary education and 827 families where parents reported no such expenditures. Factors that were significantly related to spending money on children's primary and secondary education, included after-tax income, parent's education, region, and season of the year. Variables significantly related how much was allocated to children's primary and secondary education, included after-tax income, parent's education, age, and race.     

An approximation algorithm for maximum internal spanning tree

Given a graph G, the maximum internal spanning tree problem (MIST for short) asks for computing a spanning tree T of G such that the number of internal vertices in T is maximized. MIST has possible applications in the design of cost-efficient communication networks and water supply networks and hence has been extensively studied in the literature. MIST is NP-hard and hence a number of polynomial-time approximation algorithms have been designed for MIST in the literature. The previously best polynomial-time approximation algorithm for MIST achieves a ratio of \(\frac{3}{4}\). In this paper, we first design a simpler algorithm that achieves the same ratio and the same time complexity as the previous best. We then refine the algorithm into a new approximation algorithm that achieves a better ratio (namely, \(\frac{13}{17}\)) with the same time complexity. Our new algorithm explores much deeper structure of the problem than the previous best. The discovered structure may be used to design even better approximation or parameterized algorithms for the problem in the future.     

A Probabilistic Approach to Assess External Doses to the Public Considering Spatial Variability of Radioactive Contamination and Interpopulation Differences in Behavior Pattern

Dose assessment is an important issue from the viewpoints of protecting people from radiation exposure and managing postaccident situations adequately. However, the radiation doses received by people cannot be determined with complete accuracy because of the uncertainties and the variability associated with any process of defining individual characteristics and in the dose assessment process itself. In this study, a dose assessment model was developed based on measurements and surveys of individual doses and relevant contributors (i.e., ambient dose rates and behavior patterns) in Fukushima City for four population groups: Fukushima City Office staff, Senior Citizens’ Club, Contractors’ Association, and Agricultural Cooperative. In addition, probabilistic assessments were performed for these population groups by considering the spatial variability of contamination and interpopulation differences resulting from behavior patterns. As a result of comparison with the actual measurements, the assessment results for participants from the Fukushima City Office agreed with the measured values, thereby validating the model and the approach. Although the assessment results obtained for the Senior Citizens’ Club and the Agricultural Cooperative differ partly from the measured values, by addressing further considerations in terms of dose reduction effects due to decontamination and the impact of additional exposure sources in agricultural fields, these results can be improved. By contrast, the measurements obtained for the participants from the Contractors’ Association were not reproduced well in the present study. To assess the doses to this group, further investigations of association members’ work activities and the related dose reduction effects are needed.