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31.
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HIERARCHIES AND CONTROL   总被引:1,自引:0,他引:1  
This article offers a reinterpretation of Oliver Williamson's transaction-cost efficiency approach to economic organizations. Asserted transaction-cost minimizations are found to be based on the exercise of social control power within hierarchical governance structures. Analysis of transaction-cost economics' "justification" of hierarchical employment relations shows the tenuous nature of Williamson's noncoercive conceptualization of control. His "rationale" for integrated firms, based on his assessment of the control efficiency properties of intrafirm governance structures, is also shown to be problematic. Finally, a network exchange framework is presented as an alternative approach for analyzing economic organizations. This framework builds upon, and moves beyond, insights developed in the "Markets and Hierarchies" story.  相似文献   
33.
Family supporting foster care (FSFC) is a directly accessible, short-term and preventive form of foster care for children under the age of 12. Caregivers in this type of foster care need comprehensive support to deal with their complex tasks. In this contribution, the support needs arising from the behaviour of the foster child as well as concerning dealing with the biological parents of 85 Flemish FSFC-parents are examined, as these are areas FSFC-parents specifically ask support for. These support needs are evaluated for possible links with child and foster parent characteristics. More experienced foster parents and foster parents with a foster child showing more externalising problem behaviour ask for more support in managing the child's behaviour.  相似文献   
34.
T. H. Marshall in his famous tract Citizenship and Social Class wrote briefly about what he called ‘industrial citizenship’, a type of belonging rooted in the workplace. Here Marshall's ideas are developed alongside a consideration of Durkheim's Professional Ethics and Civic Morals together with research material from the Guinness Company. It shows the way the Company actively sought to create ‘Guinness citizenship’ within its London brewery. The article draws out the ways in which the significance and potential of work based citizenship for ameliorating the ills of industrial society are clearly articulated in mid‐twentieth century Britain and echo earlier neglected Durkheimian sociological ideas on work. These ideas have real potential to inform contemporary academic and policy debates about the nature of capitalism and the form and content of work now and in the future.  相似文献   
35.
Population Research and Policy Review - The historic 2010 BP Deepwater Horizon Oil Spill (DHOS) led to public distress regarding potential impacts on children in nearby Gulf Coast communities....  相似文献   
36.
This article shows how time works against parents with learningdifficulties in the child protection system and Children Actproceedings. The prevailing wisdom, embedded in policy and theliterature, is that delay in care cases is bad for the childand may jeopardize his or her future. This paper shows how thepressure to avoid delay might itself be harming some families,especially parents with learning difficulties. Drawing on interviewswith social work practitioners undertaken as part of a largerstudy, the authors describe the various forms of temporal discriminationthat impact on this group of disabled parents. They concludethat procedural time limits make it harder for parents withlearning difficulties to meet the standards and expectationsenforced by Children’s Services and the courts.  相似文献   
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Part I of this paper (published in the last issue) was focused on demographic responses to three major famines which occurred in late nineteenth-century India. Part II deals with the 1943–44 famine in Bengal and the 1974–75 famine in Bangladesh. The paper presents important and hitherto unanalysed demographic data on the Bengal famine. Drawing on the analysis of Part I, it argues that because of flaws in the data which have been used, there is a need to reconsider some of the judgements which have been made about the demographic consequences of both the 1943–44 and 1974–75 famines. It is contended that some serious misconceptions have arisen concerning short-term demographic responses to famine. Finally, possible implications for famines in other parts of the world are discussed.  相似文献   
39.
Prior information is often incorporated informally when planning a clinical trial. Here, we present an approach on how to incorporate prior information, such as data from historical clinical trials, into the nuisance parameter–based sample size re‐estimation in a design with an internal pilot study. We focus on trials with continuous endpoints in which the outcome variance is the nuisance parameter. For planning and analyzing the trial, frequentist methods are considered. Moreover, the external information on the variance is summarized by the Bayesian meta‐analytic‐predictive approach. To incorporate external information into the sample size re‐estimation, we propose to update the meta‐analytic‐predictive prior based on the results of the internal pilot study and to re‐estimate the sample size using an estimator from the posterior. By means of a simulation study, we compare the operating characteristics such as power and sample size distribution of the proposed procedure with the traditional sample size re‐estimation approach that uses the pooled variance estimator. The simulation study shows that, if no prior‐data conflict is present, incorporating external information into the sample size re‐estimation improves the operating characteristics compared to the traditional approach. In the case of a prior‐data conflict, that is, when the variance of the ongoing clinical trial is unequal to the prior location, the performance of the traditional sample size re‐estimation procedure is in general superior, even when the prior information is robustified. When considering to include prior information in sample size re‐estimation, the potential gains should be balanced against the risks.  相似文献   
40.
In studies with recurrent event endpoints, misspecified assumptions of event rates or dispersion can lead to underpowered trials or overexposure of patients. Specification of overdispersion is often a particular problem as it is usually not reported in clinical trial publications. Changing event rates over the years have been described for some diseases, adding to the uncertainty in planning. To mitigate the risks of inadequate sample sizes, internal pilot study designs have been proposed with a preference for blinded sample size reestimation procedures, as they generally do not affect the type I error rate and maintain trial integrity. Blinded sample size reestimation procedures are available for trials with recurrent events as endpoints. However, the variance in the reestimated sample size can be considerable in particular with early sample size reviews. Motivated by a randomized controlled trial in paediatric multiple sclerosis, a rare neurological condition in children, we apply the concept of blinded continuous monitoring of information, which is known to reduce the variance in the resulting sample size. Assuming negative binomial distributions for the counts of recurrent relapses, we derive information criteria and propose blinded continuous monitoring procedures. The operating characteristics of these are assessed in Monte Carlo trial simulations demonstrating favourable properties with regard to type I error rate, power, and stopping time, ie, sample size.  相似文献   
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