A discrete-time risk model with Poisson ARCH claim-number process

Abstract

In 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.     

Using an Acculturation‐Stress‐Resilience Framework to Explore Latent Profiles of Latina/o Language Brokers

With survey data from 243 Latina/o early adolescent language brokers, latent profile analyses were conducted to identify different types (i.e., profiles) of brokers. Profiles were based on how often Latina/o early adolescents brokered for family members, as well as their levels of family‐based acculturation stress, negative brokering beliefs, parentification, and positive brokering beliefs. Three brokering profiles emerged: (1) infrequent‐ambivalents, (2) occasional‐moderates, and (3) parentified‐endorsers. Profile membership was significantly predicted by ethnic identification and brokering in a medical context. Respect, brokering at school, and brokering at home did not significantly predict profile membership. In addition, parentified‐endorsers had more frequent perceived ethnic/racial discrimination and depressive symptoms than other profiles. In contrast, infrequent‐ambivalents engaged in risky behaviors less frequently than other profiles.     

The contributions of welfare typologies to international social work practices

This paper is concerned with the link between studies of welfare typologies and studies of international social work. Its objective is to show how welfare typologies could be used to strengthen the role of international social work practices to support international exchange of ideas on welfare issues. To meet this objective, three analytical tasks are implemented. The first task is to show that professional imperialism could weaken the potential of international social work practices to promote international exchange of ideas on welfare issues. The second task is to discuss the importance of welfare typologies in supporting the development of international social work by challenging professional imperialism. The third task is to discuss a research project on a defamilization typology. This project provides empirical evidence of the contributions made by welfare typologies to international social work practices.     

Bonding and Bridging Social Capital Development by Social Workers

ABSTRACT

Developing service users’ bonding and bridging social capital is an increasingly recognized role of social workers. A survey of 570 Chinese service users, sampled from 41 social service units in Hong Kong, provided data for the study. Results demonstrated convergent and discriminant validity in a confirmatory factor model about the measurement of bonding and bridging social capital development, mutuality, and assistance to the community. This evidence for the validity and usefulness of social capital development endorses social workers’ role in developing service users’ social capital. Further research needs to assess the generalizability of the present findings in other sociocultural settings.     

Powerlessness of older people in Hong Kong: a political economy analysis

Gerontologists agree that old age can be associated with an increase in powerlessness both in the personal domain and in the social and political fields. This paper is an attempt to understand the concept of powerlessness in old age within a political economy theoretical framework. The paper argues that the powerlessness of older people is not biologically determined. Rather, it is socially constructed. It has its roots in the social, economic, and political structure of society. For this reason, the paper argues that (a) the capitalist economic system discriminates against and marginalizes older people in the labor market. The current unfavorable economic climate will make the economic situation of older people worse. (b) The residual welfare system does not counteract the unfavorable impact of the economic system. Rather, it deprives older people of the necessary financial resources and social service supports that would enable them to lead independent and dignified lives. (c) The authoritarian political system creates adverse conditions that make it very difficult for older people to participate in the decision-making process on issues that affect their lives, as well as on broader political issues that affect the whole of society. It is the interplay among these economic, social, and political forces in Hong Kong that creates the political economy of powerlessness in old age and prevents older people from using their powers to master and control their lives.     

Integrating Services for Older People in Aging Communities in The Netherlands: A Comparison of Urban and Rural Approaches

ABSTRACT

The aim of this article is to discuss approaches to services integration for older people in urban and rural aging environments in The Netherlands, and the preliminary effects of these approaches on local aging conditions. In urban areas, services integration revolves around the creation of functional spatial hierarchy. In rural areas, the emphasis is on forging links between service providers. Outcomes for health and use of professional care services are similar. Out-comes for housing, informal care, and accessibility of services differ between urban and rural areas in ways that can be traced back to local aging conditions and elements of the specific approach to services integration used. In both urban and rural areas, much more could be done to connect formal programs to the lifeworlds of older dwellers.     

Personal identity versus national identity among Hong Kong youths – personal and social education reform after reunification

This paper examines the use of Chinese traditions for the formation of a felt Hong Kong identity and a national identity among students in the personal and social education curriculum before and after reunification with China in 1997. This paper argues that the addition of China elements to the curriculum after reunification contributes to the continuous ambiguous identity of students, which is consistent with the results of various poll surveys about the civic identity of Hong Kong people in a larger context. This is because the personal and social education reform after reunification assumed a simple correlation between the patriotic feelings of students and their knowledge of China. It does not question how the promotion of an intensely unifying ‘cultural identity’ as political commitment is differentiated from the day-to-day ‘cultural experiences’ of students.     

A Nonparametric Test for Interval-Censored Failure Time Data with Unequal Censoring

This article considers nonparametric comparison of survival functions, one of the most commonly required task in survival studies. For this, several test procedures have been proposed for interval-censored failure time data in which distributions of censoring intervals are identical among different treatment groups. Sometimes the distributions may depend on treatments and thus not be the same. A class of test statistics is proposed for situations where the distributions may be different for subjects in different treatment groups. The asymptotic normality of the test statistics is established and the test procedure is evaluated by simulations, which suggest that it works well for practical situations. An illustrative example is provided.