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121.
We propose a method for estimating parameters in generalized linear models when the outcome variable is missing for some subjects and the missing data mechanism is non-ignorable. We assume throughout that the covariates are fully observed. One possible method for estimating the parameters is maximum likelihood with a non-ignorable missing data model. However, caution must be used when fitting non-ignorable missing data models because certain parameters may be inestimable for some models. Instead of fitting a non-ignorable model, we propose the use of auxiliary information in a likelihood approach to reduce the bias, without having to specify a non-ignorable model. The method is applied to a mental health study.  相似文献   
122.
Abstract

Rankings of professional schools are often flawed and always controversial. This was certainly the case when, for the first time, U.S. News & World Report published a list based on “reputation” of the “best” schools of social work. This article compares the results of that study with the findings of eight other attempts to rank social work schools over the last 20 years. The similarities and differences among those studies are discussed in terms of what we may learn from them.  相似文献   
123.
The study examined the efforts of 11 manufacturing companies to regenerate competitiveness through implementing improvement programmes. Data were collected about the activities seen to constitute improvement programmes as well as the reasons and intentions given for their implementation. Companies were found to have shared a common set of strategic intentions whilst having used differently constituted improvement programmes to achieve them. This similarity in strategic intent was seen as evidence of companies using improvement programmes to facilitate movement from mass to lean production paradigms. AU of the 11 companies studied exhibited widespread use of improvement activities. However, significant differences in individual company choice was interpreted as contra-evidence of improvements being driven solely by manufacturing fashions. This together with their similarities in strategic intent was seen as evidence that companies tailored their regenerative efforts to suit individual circumstances in pursuit of a generic strategic recipe. Some companies had discovered they had developed new capabilities through their regenerative efforts and these were seen as providing a distinctive competitive advantage. All of the companies set out with strategic intentions which centred on catching up with or imitating the best of their competitors – over a half discovered en route a means for changing the rules of the game.  相似文献   
124.
The problem of pension planning under inflationary conditions is considered in this article. The author deals with a variety of aspects of the problem and concludes that under present conditions the amount of effective pension planning possible is minimal or extremely expensive.  相似文献   
125.
The affiliation, assessment and management of risks is a traditional part of veterinary medicine. In the past, veterinary services involved in this type of activity usually assessed risks qualitatively. However, since the 1990s, quantitative methods have become increasingly important. The establishment of the World Trade Organization in 1994, and the promulgation of its Agreement on the Application of Sanitary and Phytosanitary Measures (the "SPS Agreement") led to an increased application of import risk analysis and to significant improvements in the methodology of risk analysis as applied to international trade policy for animals and animal products. However, there was very little development of risk analysis in veterinary fields other than international trade and management of health risks to consumers of animal products and little has been published on its use in the choice and definition of control or prophylaxis strategies for animal diseases. This article describes a quantitative risk assessment, which was undertaken in Italy to help choose an appropriate national response strategy following an incursion of bluetongue, an infectious disease of sheep and goats. The results obtained in this study support the use of risk analysis as a tool to assist in choosing an appropriate animal disease management strategy. The use of risk analysis in the evaluation of disease management strategies also offers advantages in international trade. It makes easier the comparison of different strategies applied in the various countries, and thus facilitates the assessment of equivalence of the guarantees provided by different strategies.  相似文献   
126.
Arguments associated with the promotion of audit committees in many countries are premised on their potential for alleviating weaknesses in corporate governance. This paper provides a synthesis and evaluation of empirical research on the governance effects associated with audit committees. Given recent policy recommendations in several countries aimed at strengthening these committees, it is important to establish what research evidence demonstrates about their existing governance contribution.A framework for analyzing the impact of audit committees is described, identifying potential perceived effects which may have led to their adoption and documented effects on aspects of the audit function, on financial reporting quality and on corporate performance. It is argued that there is only limited and mixed evidence of effects to support claims and perceptions about the value of audit committees for these elements of governance. It is also shown that most of the existing research has focused on factors associated with audit committee existence, characteristics and measures of activity and there is very little evidence on the processes associated with the operation of audit committees and the manner in which they influence organizational behaviour.It is clear that there is no automatic relationship between the adoption of audit committee structures or characteristics and the achievement of particular governance effects, and caution may be needed over expectations that greater codification around factors such as audit committee members' independence and expertise as the means of correcting past weaknesses in the arrangements for audit committees. The most fundamental question concerning what difference audit committees make in practice continues to be an important area for research development. For future research we suggest (i) greater consideration of the organizational and institutional contexts in which audit committees operate; (ii) explicit theorization of the processes associated with audit committee operation; (iii) complementing extant research methods with field studies; and (iv) investigation of unintended (behavioural) as well as expected consequences of audit committees.  相似文献   
127.
Recent advances in handheld computer hardware and software may provide alternatives to paper-based data collection methods. The authors compared data collected with paper forms to data collected with handheld computer-based forms in a field observation study of alcohol purchase attempts at 47 community festivals in a large metropolitan area. Agreement between data collected with paper forms and data collected with handheld computers was greater than 95%. Computer-based forms handled branching patterns better and yielded data that were immediately available for analyses. Paper forms handled written comments better. Handheld computers are a feasible alternative to paper forms for field data collection.  相似文献   
128.
129.
This study explores the association between student factors and delinquency by comparing two groups of adjudicated youth in six Midwestern residential facilities: 331 young men committed for a sexual offense, and 171 committed for a nonsexual offense. Statistically significant findings include juvenile sexual offenders exhibiting a greater number of delinquent behaviors and greater academic and social difficulties compared with their counterparts adjudicated for a nonsexual offense. Additionally, path analysis revealed that school experience was negatively associated with delinquency for both groups. For juvenile sexual offenders, academic difficulties were associated with delinquency through their school experience. Among general delinquents, delinquency was directly associated with social difficulties and school experience. Implications for interventions and future research are discussed.  相似文献   
130.
Why have societies failed to effectively respond to climate change? We address the question of climate change inaction by (1) examining how an unambiguously ominous report about climate change (IPCC 2018) was made palatable by news media and (2) explaining why climate change is typically unthematized in everyday life. Drawing on Adorno and Schutz, we develop a political-economic theory of relevance. The imperative to accumulate capital is not only a social-structural reality but also shapes why particular facts are regarded as relevant in experience (topical relevance) as well as how relevant material is interpreted (interpretative relevance) and acted toward (motivational relevance). Applying this framework, we (1) argue that media popularizations of the IPCC's dire Global Warming of 1.5°C (2018) are constituted by relevance systems conditioned by a capitalist social context and (2) strengthen Ollinaho's (2016) Schutzian explanation for climate change inaction by examining how productive relations and the culture industry perpetuate climate change irrelevance in everyday life. Schutz's framework helps conceptualize the intricacies of ideology and, when revised with Adorno's sociology, shines new light on an old question: the relations between social conditions and knowledge.  相似文献   
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