Robust regression estimators compared via monte carlo

This paper presents results of a Monte Carlo simulation of eight families of robust regression estimators in various situations. The effects studied include long-tailed error terms, measurement error in the independent variables, various spacings of the independent variables, different sample sizes and correlation between the independent variables. An estimator that combines the best features of several of the estimators is recommended for further study.     

Expected utility with lower probabilities

An uncertain and not just risky situation may be modeled using so-called belief functions assigning lower probabilities to subsets of outcomes. In this article we extend the von Neumann-Morgenstern expected utility theory from probability measures to belief functions. We use this theory to characterize uncertainty neutrality and different degrees of uncertainty aversion.We are grateful to Birgit Grodal, Salvatore Modica, David Schmeidler, and an anonymous referee for comments, help, and encouragement. Financial support from the Danish Social Sciences Research Council is acknowledged.     

Social exclusion or poverty individualisation? An empirical test of two recent and competing poverty theories

In recent years, two new theoretical perspectives on poverty in modern welfare societies have emerged: the perspective of ‘cumulative disadvantage’ and poverty individualisation. Both perspectives challenge traditional class-based poverty definitions. This article notes certain limitations that pertain to the relatively few empirical tests that have been performed to support these theories. The purpose of the article is to demonstrate that the results obtained depend largely on the type of poverty definition applied (income or deprivation), the actual data used (national or comparative) and the extent to which these data represent an observation period that is long enough to provide a reliable basis for testing the theories in question. The article concludes that because only few Danes experience long-term poverty and social exclusion, the combination of class and individual biography is important. In other words, structural conditions and, to a lesser degree, group risks drive individuals to the social margin.     

LABOR MARKET PERFORMANCE EFFECTS OF DISCRIMINATION AND LOSS OF SKILL

We examine the impact of discrimination on labor market performance when workers are subject to a risk of losing skills during an unemployment experience. Within a search and matching framework, we show that both natives and immigrants are affected by discrimination. Discrimination in one sector has positive spillovers, inducing employment to increase in the other sector and the effect on labor market performance therefore depends on whether discrimination is present in only one sector or in both. Discrimination may induce workers to train more or less than natives after having lost their skills, dependent upon in which sector there is discrimination. Net output tends to be most negatively affected by discrimination among high‐skilled workers. (JEL J15, J31, J61, J64, J71)     

Policy Coherence for Sustainable Agricultural Development: Uncovering Prospects and Pretence within the Swedish Policy for Global Development

Within the European Union, promotion of ‘policy coherence’ is intended to improve co‐ordination across sectors and groups of professionals, who make competing claims for agricultural development in low‐income countries. This article examines the prospects for stakeholders in Sweden to implement such a policy, drawing on experiences from the launch of a national multi‐stakeholder platform with the participation of 99 organisations. Its findings demonstrate institutional fragmentation and struggles for legitimacy, with the internationally heralded Swedish Policy for Global Development operated largely as a tokenistic instrument, legitimised by the pretence of stakeholder engagement. It argues for improved institutional support to facilitate cross‐sectoral dialogues to deconstruct social boundaries which are no longer relevant.     

Enhancing the Effectiveness of Practicum Instruction: An Empirical Study

Practicum instructors play a strategic role in assisting students gain the competence essential to effective practice. This article reports on a comparative study that tested the efficacy of traditional and experimental competency-based/task-centered methods of practicum instruction. It revealed that students taught under the latter method performed at a higher overall level of competence and had more confidence in their skills than those taught under the traditional method.     

Perspectives on family caregiving of people aging with intellectual disability affected by dementia: Commentary from the International Summit on Intellectual Disability and Dementia

ABSTRACT

This article, an output of the 2016 International Summit on Intellectual Disability and Dementia, examines familial caregiving situations within the context of a support-staging model for adults with intellectual disability (ID) affected by dementia. Seven narratives offer context to this support-staging model to interpret situations experienced by caregivers. The multidimensional model has two fundamental aspects: identifying the role and nature of caregiving as either primary (direct) or secondary (supportive); and defining how caregiving is influenced by stage of dementia. We propose staging can affect caregiving via different expressions: (1) the “diagnostic phase,” (2) the “explorative phase,” (3) the “adaptive phase,” and (4) the “closure phase.” The international narratives illustrate direct and indirect caregiving with commonality being extent of caregiver involvement and attention to the needs of an adult with ID. We conclude that the model is the first to empirically formalize the variability of caregiving within families of people with ID that is distinct from other caregiving groups, and that many of these caregivers have idiosyncratic needs. A support-staging model that recognizes the changing roles and demands of carers of people with ID and dementia can be useful in constructing research, defining family-based support services, and setting public policy.     

Social Crisis and Aboriginal Alcohol Abuse*

This article summarizes the major results of three studies into aboriginal alcohol abuse in and around Perth. The first study was based on in-depth interviews with thirty-one officers and members of sixteen Perth community organizations. In addition, a review of impressionistic arguments and research documents was also completed. This section also includes a structured interview with the thirty-one respondents. The second study examined the fringe dwellers' situation through interviews with four community workers and thirty-five camp inhabitants. The final study reported on interviews with a representative sample of fifty-three Perth whites to ascertain the nature of the ‘white backlash’. Overall the results support the predominant role of environmental alcohol abuse and the need for a long term, organic approach.