Robert N. Hunter and George R. McGuire
Bituminous pavement materials have low viscosity at elevated temperatures. This allows effective compaction during the laying process. In laying unchipped materials compaction is…
Abstract
Bituminous pavement materials have low viscosity at elevated temperatures. This allows effective compaction during the laying process. In laying unchipped materials compaction is necessary to densify the mix whereas in laying chipped materials compaction is necessary to embed the chippings and also densify the matrix. Since wearing courses are normally 40 mm thick the time available for these aims to be met is limited. This time period is a function of the hot‐mix and underlying material properties and ambient parameters prevailing when it is laid.
Charles R. McCann and Vibha Kapuria-Foreman
At the turn of the twentieth century, various Socialist parties vied for a place in the American political system, making alliances where possible and convenient with elements of…
Abstract
At the turn of the twentieth century, various Socialist parties vied for a place in the American political system, making alliances where possible and convenient with elements of organized labor. Robert Franklin Hoxie, an economist at the University of Chicago whose principle contributions lay in his writings on the labor movement, wrote a series of essays in which he scrutinized the activities of the Socialist Party of America as it appeared to be at the time poised to become a viable force in American politics. This essay examines Hoxie’s writings on the conventions of the Socialist Party within the context of the political dynamic of the period and reveals his interpretations of events based on contemporary accounts and first-hand observations.
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Elizabeth Gammie, Erica Cargill and Bob Gammie
The ever‐increasing cost of seeing a graduate training contract through to its successful completion has made the selection decision, and indeed the choice of selection techniques…
Abstract
The ever‐increasing cost of seeing a graduate training contract through to its successful completion has made the selection decision, and indeed the choice of selection techniques used, increasingly vital. This paper identifies the selection methods currently used by the Scottish accountancy profession to recruit graduate trainees, compares these against best practice and highlights a number of areas where improvements to current practice would be recommended. Analysis of the selection literature revealed the range of selection techniques on offer, and from a consideration of the validity and reliability of each technique, it was possible to identify best practice in graduate selection. Data was collected by sending a questionnaire to 79 firms of Scottish Chartered Accountants. The targeted firms constituted the entire population of Scottish firms seeking to recruit a graduate trainee to commence in Autumn 2002 (as detailed within the annual ICAS Directory of Training Vacancies). Using the results of the primary and secondary data, the skills currently being sought by firms of Chartered Accountants in their graduate trainees were identified. The methods used by firms to identify these skills were then examined with each method being examined in terms of its current use as well as its value and effectiveness in practice. It was found that there have been significant changes to the skill‐set sought by firms in the early 21st Century as compared with a decade ago, with less emphasis on numeracy and more interest in softer skills such as communication and problem‐solving. As regards the techniques currently employed by firms to identify these skills, it was found that there has been some progress made over the last decade. However, the majority of firms are still reluctant to let go of what is now considered to be the more traditional interview‐based approach to selection, favouring this above what might be considered the more innovative techniques on offer. Further, it was found that few firms have designed their selection process specifically to identify the skill‐set that they have delineated. Thus, a consequent lack of consistency throughout the selection decisions was evidenced.
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Isobel Claire Gormley and Thomas Brendan Murphy
Ranked preference data arise when a set of judges rank, in order of their preference, a set of objects. Such data arise in preferential voting systems and market research surveys…
Abstract
Ranked preference data arise when a set of judges rank, in order of their preference, a set of objects. Such data arise in preferential voting systems and market research surveys. Covariate data associated with the judges are also often recorded. Such covariate data should be used in conjunction with preference data when drawing inferences about judges.
To cluster a population of judges, the population is modeled as a collection of homogeneous groups. The Plackett-Luce model for ranked data is employed to model a judge's ranked preferences within a group. A mixture of Plackett- Luce models is employed to model the population of judges, where each component in the mixture represents a group of judges.
Mixture of experts models provide a framework in which covariates are included in mixture models. Covariates are included through the mixing proportions and the component density parameters. A mixture of experts model for ranked preference data is developed by combining a mixture of experts model and a mixture of Plackett-Luce models. Particular attention is given to the manner in which covariates enter the model. The mixing proportions and group specific parameters are potentially dependent on covariates. Model selection procedures are employed to choose optimal models.
Model parameters are estimated via the ‘EMM algorithm’, a hybrid of the expectation–maximization and the minorization–maximization algorithms. Examples are provided through a menu survey and through Irish election data. Results indicate mixture modeling using covariates is insightful when examining a population of judges who express preferences.
Through a survey of 200 employees working in five of the thirty establishments analysed in previous research about the microeconomic effects of reducing the working time (Cahier…
Abstract
Through a survey of 200 employees working in five of the thirty establishments analysed in previous research about the microeconomic effects of reducing the working time (Cahier 25), the consequences on employees of such a reduction can be assessed; and relevant attitudes and aspirations better known.
In his review of 30 years of research in Prospect Theory, Barberis (2013) notes that support for Prospect Theory had come mainly from the laboratory. In this paper, I write about…
Abstract
In his review of 30 years of research in Prospect Theory, Barberis (2013) notes that support for Prospect Theory had come mainly from the laboratory. In this paper, I write about a recurring phenomenon in real life that is consistent with Prospect Theory predictions in decision-making loss domain. The 60 cases noted in this paper are associated with specific risk seekers that had cost more than $140 billion (an average of $2.33 billion per case). Given space consider– ations, I provide synopses for 14 cases. A few of these cases have been discussed in the extant literature in connection with internal control, but were not considered from the perspective of Prospect Theory. It is striking that these cases are costly, all participants are young men, and almost all had followed the gambler’s martingale strategy – i.e., double down. While these cases are informative about risk-seeking behavior, they are not sufficiently systematic to be subjected to stylized archival research methods.
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Robert Wareing and Janet Stockdale
Despite an overwhelming body of empirical evidence which questions both the reliability and validity of interviews as a form of predictive device, (see, for instance, the…
Abstract
Despite an overwhelming body of empirical evidence which questions both the reliability and validity of interviews as a form of predictive device, (see, for instance, the meta‐analysis by Hunter and Hunter, and reviews by Schmitt and Arvey and Campion) interviews, either with or without supplementary information, continue to be widely used in making decisions on selection, placement, appraisal and promotion (Anstey, Fletcher and Walker, Randell, Carlson, Thayer, Mayfield and Peterson and Ulrich and Trumbo).
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Notes of the United States National…
Abstract
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Notes of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued