Heteroscedasticity and Distributional Assumptions in the Censored Regression Model

Data censoring causes ordinary least-square estimators of linear models to be biased and inconsistent. The Tobit estimator yields consistent estimators in the presence of data censoring if the errors are normally distributed. However, nonnormality or heteroscedasticity results in the Tobit estimators being inconsistent. Various estimators have been proposed for circumventing the normality assumption. Some of these estimators include censored least absolute deviations (CLAD), symmetrically censored least-square (SCLS), and partially adaptive estimators. CLAD and SCLS will be consistent in the presence of heteroscedasticity; however, SCLS performs poorly in the presence of asymmetric errors. This article extends the partially adaptive estimation approach to accommodate possible heteroscedasticity as well as nonnormality. A simulation study is used to investigate the estimators’ relative performance in these settings. The partially adaptive censored regression estimators have little efficiency loss for censored normal errors and appear to outperform the Tobit and semiparametric estimators for nonnormal error distributions and be less sensitive to the presence of heteroscedasticity. An empirical example is considered, which supports these results.     

Intellectual disability and faith communities: perspectives of Catholic religious leaders

Faith communities create community and are important to many individuals with intellectual disability. However, relatively little is known about how intellectual disability is construed among faith leaders and the inclusion of people with intellectual disability in faith communities. To address these gaps in knowledge, we interviewed 12 Catholic priests, parochial vicars, and deacons to explore: their experiences with individuals with intellectual disability; their beliefs towards the involvement of individuals with intellectual disability within faith communities; and how religion informs their understanding of intellectual disability. We identified five religiously-anchored narratives of intellectual disability, and explore implications for individuals with intellectual disability and faith communities.     

Altruism and efficient allocations in three-generation households

Journal of Risk and Uncertainty - In this paper we test the efficiency of family resource allocation in three-generation households. Understanding how the so-called “squeezed middle”...     

Social Media(tion) and the Reshaping of Public/Private Boundaries in Employment Relations

Tensions surrounding social media in the employment relationship are increasingly evident in the media, public rhetoric, and courts and employment tribunals. Yet the underlying causes and dimensions of these tensions have remained largely unexplored. This article firstly reviews the available literature addressing social media and employment, outlining three primary sources of contestation: profiling, disparaging posts and blogs, and private use of social media during work time. In each area, the key dynamics and underlying concerns of the central actors involved are identified. The article then seeks to canvas explanations for these forms of contestation associated with social media at work. It is argued that the architecture of social media disrupts traditional relations in organisational life by driving employer and employee actions that (re)shape and (re)constitute the boundaries between public and private spheres. Although employers and employees are using the same social technologies, their respective concerns about and points of entry to these technologies, in contrast to traditional manifestations of conflict and resistance, are asymmetric. The article concludes with a representational summary of the relative legitimacy of concerns for organisational actors and outlines areas for future research.     

Mapping the uninsured using secondary data: an environmental justice application in Dallas

Over the last 5 years, environmental justice (EJ) researchers have been calling for incorporation of health outcomes more directly into spatial studies of socio-demographics and environmental hazards. To date, researchers have not incorporated insurance status (an access to health care variable) in their models although access to care likely has an important association with the probability of health effects due to environmental exposures. As such, insurance status represents an important variable within spatial EJ studies focused on health, and the lack of spatially explicit access to care data is a critical limitation in the field. As a solution, we offer a method of using uninsured appendicitis cases, acquired secondarily from state hospital admissions data, to estimate rates of uninsurance at the zip-code level. We apply the technique to explore relationships between cancer risk from hazardous air pollutants and estimated rates of uninsurance, a previously unexplored phenomenon. Then, we compare the uninsurance findings to those related to poverty to illustrate how uninsurance, as a variable, compares to a more traditional socio-economic predictor used in EJ studies. The relationship between cancer risk from hazardous air pollutants and uninsurance is weaker than the relationship between risk and poverty, but both are statistically significant. As such, we conclude with a discussion of the importance of considering insurance status in spatial studies of EJ focused on health.     

Organizational perspectives on digital labor market intermediaries

Dramatic changes in organizational forms and employee-employer relationships have coincided with a proliferation of labor market intermediaries. Often digital and internet-based, these new hiring technologies assist organizations in recruiting and screening potential job candidates. We identify three types of digital labor market intermediaries (dLMIs): connectors, curators, and comminglers. We examine the use of dLMIs through the lens of organizational theory, focusing on implications for organizational efficiency, power, and equity. dLMI use is patterned but variable across different organizations and has unintended outcomes that defy efficiency expectations. It poses new constraints for job seekers while allowing organizations and intra-organizational groups to negotiate institutional pressures and power imbalances. Finally, dLMI use appears to reproduce pre-existing inequalities among different types of employees.     

Welfare programs and the state economy

Welfare policy has been controversial and support is often drawn along political affiliation lines, the economic return of investment in welfare programs is frequently cited as a justification for new and expanded policies. To investigate the direct and indirect effects of welfare programs on economic performance, the authors develop a multilink approach, through employment and investment. The relationship is then tested with data from each of the United States from 1976 to 2006. Findings show welfare programs have no direct effect on a state's economy. Indirectly, welfare has a negative effect through investment, though the effect on employment is minimal.     

Independent evaluation of the Triple P Positive Parenting Program in family support service settings

The Triple P Positive Parenting Program is a multilevel system of behaviour‐based parenting training and support. The aim of this study was to determine whether implementation of levels 2 and 3 of the Triple P system, designed for primary care settings, enhances parent, child and family outcomes compared with services‐as‐usual in Alberta, Canada. The study employed a quasi‐experimental, single‐blind and post‐test‐only design. A survey incorporating outcome measures was administered to a sample of 1296 parent‐clients. A total of 923 parents responded, including 172 parents who had received a Triple P (level 2 and/or 3) intervention during the previous 12 weeks. A significant interaction was found between participation in a group‐based parent education programme and receipt of Triple P. Parents who participated in a group‐based parent education programme, and who received a Triple P intervention reported somewhat higher levels of need satisfaction than parents who participated in a group‐based parent education programme but who did not receive a Triple P intervention. No significant difference was found between Triple P and service‐as‐usual groups on any secondary outcome measures including parenting stress, positive interaction, family functioning and child problem behaviours.     

The Role of Non‐profit Organizations in the Mixed Economy of Welfare‐to‐Work in the UK and Australia

This article charts the development of welfare‐to‐work policies and compares and contrasts the traditions of delivery in the UK and Australia. We find that in the UK, employment services and social security benefit administration have been dominated by the central state, traditionally affording a key role to civil servants as direct delivery agents. However, in federal Australia, mixed economies of welfare‐to‐work operate in the different states, there is a far greater role for social services and non‐profit organizations are firmly established as key providers of frontline employment services. Since the late 1990s, UK welfare reforms have been gradually following the Australian lead in contracting non‐state actors as delivery agents. As this trend seems set to continue and intensify, we examine the Australian experience in order to reflect on the role of non‐profits in policy reform.     

The challenge of quantifying national well-being: lessons from the Measures of Australia's Progress initiative

ABSTRACT

In recent decades, the use of gross domestic product (GDP) as a proxy for national well-being has been criticised on the grounds it excludes important social and ecological considerations. Several alternatives have been proposed that promise to generate more comprehensive and balanced quantitative measures of well-being, but all of these alternative indicators remain contested and controversial. This paper critically reviews Australia's contribution to this effort: the Australian Bureau of Statistics’ (ABS's) Measures of Australia's Progress initiative. Unlike many other alternatives to GDP, the Australian initiative does not settle on one measure but uses expert-mediated public consultation to establish a ‘dashboard’ of indicators. In so doing, this model makes explicit the serious challenges confronting efforts to coherently define and measure progress in late modernity. In its attempt to integrate diverse views on national progress, the ABS has created an ambiguous tool that is not being taken up in public and political discourse.