Modeling healthcare costs in simultaneous presence of asymmetry,heteroscedasticity and correlation

Highly skewed outcome distributions observed across clusters are common in medical research. The aim of this paper is to understand how regression models widely used for accommodating asymmetry fit clustered data under heteroscedasticity. In a simulation study, we provide evidence on the performance of the Gamma Generalized Linear Mixed Model (GLMM) and log-Linear Mixed-Effect (LME) model under a variety of data-generating mechanisms. Two case studies from health expenditures literature, the cost of strategies after myocardial infarction randomized clinical trial on the cost of strategies after myocardial infarction and the European Pressure Ulcer Advisory Panel hospital prevalence survey of pressure ulcers, are analyzed and discussed. According to simulation results, the log-LME model for a Gamma response can lead to estimations that are biased by as much as 10% of the true value, depending on the error variance. In the Gamma GLMM, the bias never exceeds 1%, regardless of the extent of heteroscedasticity, and the confidence intervals perform as nominally stated under most conditions. The Gamma GLMM with a log link seems to be more robust to both Gamma and log-normal generating mechanisms than the log-LME model.     

A Nonparametric Test for Autoregressive Conditional Heteroscedasticity: A Markov-Chain Approach

In this article we propose a nonparametric test for autoregressive conditional heteroscedasticity based on finite-state Markov chains. A simple Monte Carlo experiment suggests that in finite samples it performs comparably to the Lagrange multiplier test under conditional normality and is superior for the t, lognormal, and exponential distributions. As an illustration, we apply both tests to Canadian/U.S. forward foreign exchange data.     

Fatherhood regimes and father involvement in France and the UK

This paper contrasts and compares the institutional framework for fatherhood and father involvement and the survey evidence relating to fathers’ contribution to childcare and domestic work in the two countries. It shows that while men's contribution to such activities appears to be increasing in both France and the UK, change is slow and father involvement does not necessarily seem to correlate directly either with patterns of female labour force participation or with the support offered by the institutional framework. The authors explore the theoretical frameworks most appropriate for explaining their findings and situate them primarily in terms of Pfau-Effinger's theorization of the gender arrangement (1998, 2002, 2004). The authors conclude that while change in father involvement is slow, the introduction of statutory and organizational work–life balance measures which alter the gender order open up opportunities for negotiated change in the division of the labour in the home.     

Welfare vs “Cyberfare”

Due to the continual reliance on an outdated paradigm, current welfare reform proposals fail to adequately address the fundamental problems behind the welfare system itself. Obstacles to welfare reform abound, yet are not insurmountable with a redefinition of the federal role and a new overall way of thinking. Through the reexamination of current and past policies and existing cultural mores, the welfare system could, be recreated to rely on a new paradigm: cyberfare. Cyberfare is an economic and social support system which addresses the issues associated with an information/technology age, global economy, and the changing role of families and social institutions. Although the incorporation of cyberfare and the reforming of the welfare system is not without its challenges, it is vital to solving the poverty problem in American society.     

The Prison Industry: Carceral Expansion and Employment in U.S. Counties, 1969–1994*

Objectives. Despite the interest that social scientists have displayed in the rising rate of incarceration, little attention has been devoted to understanding its consequences for local areas. This is an important omission because prison construction has become a component of state and local economic development schemes. Indeed, there is a widespread belief that prison construction provides significant economic benefits to local areas. Methods. We analyze data on all existing and new prisons in the United States since 1960 and examine the impact of these prisons on the pace of growth (as measured by public, private, and total employment growth) in U.S. counties from 1969 to 1994. To our knowledge, our study is the first comprehensive and longitudinal assessment of the impact of prison construction on local areas. Results. We find no evidence that prison expansion has stimulated economic growth. In fact, we provide evidence that prison construction has impeded economic growth in rural counties that have been growing at a slow pace. Conclusion. Despite sharp ideological and intellectual differences, the critics and the advocates of the prison construction boom share the assumption that prisons can contribute to local growth, especially in hard‐pressed local areas. This belief flies in the face of mounting evidence that state and local initiatives rarely have a significant impact on growth; this belief is also contradicted by our analyses.     

A Hint of Risk: Tradeoffs Between Quantitative and Qualitative Risk Factors

Risk-perception research plays an active role in discussions of risk-management alternatives. However, little guidance is provided regarding how public concerns should be weighed against other sources of cost and benefits. This paper reports the results of two experiments that measure tradeoffs among cost (in dollars), a quantitative risk measure (number of deaths or injuries), and several qualitative characteristics associated with perceived risk. Most subjects were willing to make the requested trade. However, the perceived risk information led others to reject the proposed technology.     

Stigma Happens: Social Problems in the Siting of Nuclear Waste Facilities

The paper by Metz challenges the view that stigma associated with a nuclear waste repository might lead to significant economic losses to the host region. We have been invited to comment on the general issues raised by this paper. We find that much of the evidence presented in the paper consists of factual and conceptual errors and misrepresentations of the research literature. Based on our review of evidence documenting the social and economic impacts of perceived risk, we conclude that stigma is an important phenomenon that is symptomatic of fundamental problems with the way in which nuclear waste facilities are sited.     

AN ANALYSIS OF THE DEBATE ON INTERGENERATIONAL EQUITY AND FISCAL SUSTAINABILITY IN AUSTRALIA

The authorities in a number of advanced countries have produced intergenerational reports that seek to determine the fiscal sustainability of current policy parameters. The Australian government will publish its Intergenerational Report in May 2002. This paper attempts to place these reports in analytical perspective. We examine the notion of intergenerational equity, the conceptual basis for generational accounting, Australian efforts at constructing generational accounts, and then review the intergenerational reports of several other countries. The paper concludes with a brief synoptic discussion of various policies that can help Australian governments achieve intergenerational balance in future.     

CONTESTING FAIRNESS AND FRAGMENTING GROUPS: CULTURAL NARRATIVES OF TAXATION AND CITIZENSHIP IN GLOBALISING AUSTRALIA

This paper explores the relationship between culturally mediated narratives of fairness, conceptions of the state, group and individual identities, citizenship and debates about globalisation in Australian perspectives on tax administration. It is based on a qualitative analysis of 2374 responses to a survey of attitudes to the Australian tax system. This paper emphasises that taxpayer's statements can be read as cultural acts that enrich our understanding of how people give meaning and significance to their lives. The majority of respondents reported that taxation should be levied fairly across social groups. However, this sense of fairness is being eroded by the widespread perception that the wealthy are avoiding their “fair share” of taxes. However, although citizens view tax administration as increasingly unfair, there is no evidence of wholesale disengagement from the system. The majority of people believe that the tax system has legitimacy and that it can be reformed. There is still scope for policy innovation that reinstates a sense of fairness, equity and balance to the tax system.     

Place-based urban ecology: A century of park planning in Seattle

This research responds to calls from within the field of urban ecology to explicitly incorporate humanities-based research in order to achieve robust interdisciplinarity. Our research provides an example of a place-based urban ecological analysis. We use this framework to analyze over a century of park planning and development within the city of Seattle. We identify four eras of park planning that are linked by a comprehensive 100-year park plan. This case study examines how the political, cultural, and economic aspects of park planning have produced and been influenced by long-term trends and historical contingencies. This research also offers practical insights for effective contemporary urban planning, emphasizing the need for flexible and adaptive long-term plans when confronted with unpredictable events, emerging political arrangements, changing cultural priorities, and shifting fiscal climates.