A fast robust method for fitting gamma distributions

The art of fitting gamma distributions robustly is described. In particular we compare methods of fitting via minimizing a Cramér Von Mises distance, an L ₂ minimum distance estimator, and fitting a B-optimal M-estimator. After a brief prelude on robust estimation explaining the merits in terms of weak continuity and Fréchet differentiability of all the aforesaid estimators from an asymptotic point of view, a comparison is drawn with classical estimation and fitting. In summary, we give a practical example where minimizing a Cramér Von Mises distance is both efficacious in terms of efficiency and robustness as well as being easily implemented. Here gamma distributions arise naturally for “in control” representation indicators from measurements of spectra when using fourier transform infrared (FTIR) spectroscopy. However, estimating the in-control parameters for these distributions is often difficult, due to the occasional occurrence of outliers.     

The New Statistics for Better Science: Ask How Much,How Uncertain,and What Else Is Known

Abstract

The “New Statistics” emphasizes effect sizes, confidence intervals, meta-analysis, and the use of Open Science practices. We present three specific ways in which a New Statistics approach can help improve scientific practice: by reducing overconfidence in small samples, by reducing confirmation bias, and by fostering more cautious judgments of consistency. We illustrate these points through consideration of the literature on oxytocin and human trust, a research area that typifies some of the endemic problems that arise with poor statistical practice.     

Statistical equality and cultural difference in Indigenous wellbeing frameworks: A new expression of an enduring debate

Recent years have seen a burgeoning interest in developing indicator frameworks for ‘Indigenous wellbeing’. Implicit in each of the frameworks are particular conceptions of what constitutes the ‘good life’ for Indigenous peoples and what ‘Indigenous development’ should entail. In developing these frameworks, then, certain judgements must be made about whether statistical equality should be prioritised as a ‘development’ goal. This issue has generated long‐standing debate and in this context must be broached anew. In this paper we briefly examine the growing interest in Indigenous wellbeing and outline three prominent indicator frameworks: the Productivity Commission's indicators for ‘Overcoming Indigenous Disadvantage’; the ‘capability indicators’ developed by the Cape York Institute for Policy and Leadership; and the indicators of wellbeing developed by the United Nations Permanent Forum on Indigenous Issues. The first prioritises statistical equality between Indigenous and non‐Indigenous Australians; the second adds a concern with ‘capabilities’; and the last emphasises the importance of distinct cultural preferences. We offer an assessment of these approaches, drawing in part on Amartya Sen's work. We argue that in seeking to improve the wellbeing of Indigenous Australians, policy‐makers should not only make their own normative assumptions clear, but also be aware of the implications of their decisions for constituents with different worldviews.     

The relationship between organizational factors and resident satisfaction with nursing home care and life

We examined the relationships between nursing home (NH) resident satisfaction and NH organizational characteristics, while controlling for the effect of resident characteristics within facilities. We used a stratified, random sample of NHs (N = 72) from two states and a prescreened and randomized sample of 1496 residents. Data sources included resident interviews, an administrator survey, the Minimum Data Set (MDS), and the Online Survey, Certification and Reporting System (OSCAR). Using Hierarchical Linear Modeling (HLM) techniques, we found that non-chain affiliation, certified nursing assistant staffing, and provision of a family council had significant positive effects on total resident satisfaction. The presence of a special care unit was associated with lower levels of satisfaction.     

Occupational Race Segregation,Globalization, and White Advantage: White-Black Earnings Inequality in U.S. Metropolitan Areas

Addressing the need to systematically assess the materialist foundations of color-blind racism, we use insights from critical race theory to investigate the metropolitan-level racial inequality at the turn of the century. Namely, we examine the association between occupational race segregation and white advantage (i.e., white-black earnings inequality) for men and women in 202 U.S. metropolitan statistical areas in the year 2000. We find that occupational race segregation exacerbates white advantage for both male and female workers, supporting the tenets of the materialist conception of color-blind racism. We also consider how processes of globalization and labor market transformation impact white advantage. Our findings indicate that global capital increases white advantage for males, whereas foreign direct investment and casualization serve to decrease it. They also indicate that exports decrease white advantage for females, whereas percent foreign born increases it.     

Playing the Game of Outcomes‐based Performance Management. Is Gamesmanship Inevitable? Evidence from Theory and Practice

This article presents the case for the need for a re‐think in the prevailing orthodoxy of measurement approaches in the governance and management of public services. The article explores the simplification of complex reality that outcomes‐based performance management (OBPM) requires in order to function, and the consequences of such simplification. It examines the evidence for and against the effectiveness of OBPM, and argues that both sets of evidence can be brought into a single explanatory story by understanding the theory of OBPM. The simplification required to measure and attribute ‘outcomes’ turns the organization and delivery of social interventions into a game, the rules of which promote gamesmanship, distorting the behaviour of organizations, managers and practitioners who undertake it.     

Surveying the “Post‐Industrial” Landscape: Information Technologies and Labour Market Polarization in Canada*

Dans le cours des débats récents concernant l'effet des technologies nouvelles sur le travail, une question touche la polarisation des «bons» et des «mauvais» emplois dans l'économie postindustrielle. Les compétences et les gains figurent au centre des préoccupations. À partir de données tirées de l'Enquête sociale générale de 1994, nous avons examiné l'utilisation de l'informatique au Canada, et nous avons analysé l'incidence de cet usage sur les compétences et les gains liés aux emplois. Nos conclusions n'appuient pas une explication du phénomène de la polarisation fondée sur la technologie dans le marché du travail. Les caractéristiques des travailleurs et les modalités professionnelles sont beaucoup plus importantes, bien qu'il existe des differences rattachées aux competences en infor‐matique dans des regroupements semblables de professions. A key issue in recent debates over the impact of new technologies on work is the polarization of “good” and “bad” jobs within the “post‐industrial” economy. Two dimensions—skill and earnings—have been of central concern. Drawing on the 1994 General Social Survey, we examine computer use in Canada, and analyze its impact on job earnings and skill. Our findings do not support a technology‐based explanation of polarization within the labour market as a whole. Instead, worker characteristics and occupational conditions are far more important, although there is some evidence of computer‐related skill differences within similar groupings of occupations.     

Local rural product as a ‘relic’ spatial strategy in globalised rural spaces: Evidence from County Clare (Ireland)

Using a case study from County Clare (Ireland), this study critically analyses notions of ‘local’ rural production. It investigates where rural businesses source the different components of their products and how these interrelate with the locality, how local businesses use the notion of ‘local’ in their product branding, and what the socio-economic and political constraints and opportunities are for businesses seeking to foreground the ‘local’ in their business marketing. Echoing critical studies on the notion and use of ‘local’ in rural product branding (e.g. Burnett and Danson, 2004; Ilbery and Maye's; Feagan, 2007; Darby et al., 2008; Giovannucci et al., 2010), we argue that even remote rural areas such as County Clare in western Ireland have become so embedded in globalised economic and decision-making pathways that the ‘local’ in rural product branding only remains ‘local’ as a relic process associated with past localized rural production activities.