Evaluating the Simplified Conjoint Expected Risk Model: Comparing the Use of Objective and Subjective Information

The simplified Conjoint Expected Risk (CER) model by Holtgrave and Weber posits that perceived risk is a linear combination of the subjective judgments of the probabilities of harm, benefit, and status quo, and the expected harm and benefit of an activity. It modifies Luce and Weber's original CER model—that uses objective information to evaluate financial gambles—to accommodate activities such as health/technology activities where values of the model variables are subjective. If the simplified model is a valid modification of the original model, its performance should not be sensitive to the use of subjective information. However, because people may evaluate information differently when objective information is provided to them than when they generate information on their own, the performance of the simplified CER model may not be robust to the source of model-variable information. We compared the use of objective and subjective information, and results indicate that the estimates of the simplified CER model parameters and the proportion of variance in risk judgments accounted for by the model are similar under these two conditions. Thus, the simplified CER model is viable with activities for which harm and benefit information is subjective.     

Declining inter-industry wage dispersion in the US

Industrial effects have long been significant factors in wage inequality. Previous research indicates that wage differentials across industries were increasing through the mid 1980s. Using more recent data, however, we find that the level of inter-industry wage dispersion declined by 36% from 1986 to 2002 despite the continued trend towards increasing inequality in the labor force. This decline in inter-industry wage dispersion is evident across gender and educational groups. Using multilevel growth curve models, our multivariate results indicate that the decline is only weakly related to industrial changes in education, occupation or even productivity despite the fact that the latter variable had been a critical factor in the prior period. Indicators of globalization and downsizing also do not appear to explain this decline. For the more recent period, the most important factors associated with the narrowing of inter-industry wage dispersion are reduced unionization rates and the higher proportion of casual workers. We interpret these results as suggesting that firms may now be less economically obliged to pass on a portion of their rents to broad groups of workers and may instead be engaged in more idiosyncratic processes of negotiation with individual workers based on micro-level sources of bargaining power.     

Discourses of multicultural coexistence (Tabunka Kyōsei) and the ‘old-comer’ Korean residents of Japan

This paper explores the discourses of ‘old-comer’ Korean communities (zainichi) in Japan in relation to the recent advent of notions of coexistence (kyōsei) and multiculturalism (tabunka). I adopt an analytical framework that has been used to critically examine Australian multiculturalism, recognising that although the Australian context is different, this analytical framework is useful for the examination in hand. I argue that although the discursive recognition of Japan as multicultural is an important step away from ubiquitous notions of monoculturality, this relatively new direction needs to be balanced with critical interrogation of how it is being represented. The results of this research clarify the positions adopted by the Korean diaspora in Japan and offer a possible alternative perspective on the way forward.     

Testing circular symmetry

The author addresses the problem of testing circular data for reflective symmetry about an unknown central direction and proposes a simple omnibus test based on the sample second sine moment about an estimation of this direction. Under quite general conditions, for an underlying distribution which is reflectively symmetric, the large‐sample asymptotic distribution of the test statistic is standard normal. Randomization and bootstrap variants of the test are also introduced, and the operating characteristics of different versions of the test are investigated in a Monte Carlo study. The large‐sample and bootstrap versions of the test are applied in the analysis of two illustrative examples drawn from the circular statistics literature.     

Range management and production on the fringe: The Caldenal, Argentina

North American problems in coming to terms with the management of the semi-arid Plains environment are well known. Less documented are those of Argentina's equivalent on the fringe of the Humid Pampas. Argentine agricultural aid and research has been focussed on the Humid Pampas, and little understanding of the special problems of the dry zone is apparent. Issues of production and conservation are in urgent need of attention. In addition to the limits posed by the natural environment, a number of human factors affect the ability of ranchers to produce from the dry lands. In a field study of the Caldenal, some indications are that the factors are different from other environments in Latin America. Large properties are not less productive per hectare than small, and standard technology does not guarantee good results from ranching. Tenant farming is not a problem, but there is an impoverished group, those ranchers without other means of earning a livelihood. A recommendation is for encouragement to be given to larger ranch units, and for more research into relevant technology, which is likely to include conservationist measures, whose introduction to the ranches should be financially supported.     

Mental Health Risks to Infants and Toddlers in Foster Care

This paper describes mental health risks to the birth-to-three foster care population. The paper describes risks of a relational and contextual nature. Relational risk factors, which have been previously identified by foster care researchers and clinicians, include the following: 1. Poor attachment signaling by foster infants and toddlers; 2. Discomfort with infant and toddler dependency by some foster parents; and 3. Regulatory problems of foster infants and toddlers. Contextual risk factors include the following: 1. Lack of coordinated and coherent efforts to help foster infants and toddlers and; 2. Lack of support for the parent–child relationship during placement. A case example and discussion is offered to illustrate these risks.     

Social work and day care: a role looking for a profession

The profession's present role in day care is assessed through a review of the social work literature. This analysis suggests that the profession is not systematically involved enough in child care systems on a local or national basis. The author discusses why this is so, and suggests professional points of access for social workers interested in providing social services in different types of child care. In addition, it is recommended that more policy and programmatic emphases be put on providing social services to family day care homes, the care of children by their relatives, and for centers that serve ethnic minorities and disadvantaged families.I wish to thank Beatrice Saunders and Eleanor Brilliant for their help in writing this article.     

Allocation of research and development funds: A zero-one goal programming approach

The research and development project selection process is one of the most difficult and important problems faced by management. It is typically complicated by indivisibility of projects and multiple and conflicting objectives, in addition to limitations on funding, facilities, and qualified researchers. In this paper a case example involving a high technology electrical equipment manufacturer is developed to illustrate this problem using zero—one goal programming to accommodate indivisibility of projects in addition to multiple and conflicting goals. The model presented is an attempt to provide managers with a robust tool for allocating scarce resources among research and development projects.