Suchergebnisse

The Analytic Hierarchy Process (AHP) is a Multi-Criteria method in which a number of decision factors (typically criteria and alternatives) are compared pairwise by one or more experts, using the Saaty scale, with the goal of sorting the alternatives (Saaty, 1977; 1980). For group AHP the Delphi method can be used in parallel with the AHP (Di Zio and Maretti, 2014), and this allows the search for a consensus on each pairwise judgement. A big issue of the AHP regards the inconsistency of the pairwise comparison matrices and here we propose a new method to reduce the inconsistency. As a solution we exploit the Nudge theory (Thaler and Sunstein, 2008) and from the second round of the Delphi survey, we calculate and circulate a Nudge to "gentle push" the experts towards more consistent evaluations. Furthermore, we propose the representation of the AHP matrices through graphs. In a direct graph two nodes are linked with two direct and weighted edges (or one edge with the direction based on the weights), where the weights indicate the evaluation given by an expert or, for a group, the geometric mean of the judgements. This type of visualization facilitates the reading of the results and could also be used as real-time feedback in the Delphi process, by displaying on the edges also a measure of variability. An application is proposed, on the evaluation of four future scenarios on the regulation of genetic modification experiments, assessed by a panel of 27 experts according to different criteria (plausibility, consistency and simplicity). The application demonstrated that it is possible to: a) reduce the inconsistency; b) collect useful textual material which enrich the AHP itself; c) use the inconsistency index as a stopping criterion for the Delphi rounds; d) display the pairwise comparison matrices with graphs.

PurposeThis paper proposes the use of martial arts as a means to combat aggressiveness and, at the same time, to provide a concrete and preventive answer to the problem of violence against women.Design/methodology/approachThe paper suggests the teaching of martial arts in school for both sexes, with a double positive effect: the reduction of the tendency to violence for boys and an increase in the defensive potential for girls. In both cases, looking to the long term, these synergistic effects could contribute to a reduction in violence against women.FindingsThe paper describes the Italian experience in teaching karate and judo at school. The Italian federation of judo, karate, fight and martial arts (FIJLKAM) was one of the first sports federations to have obtained the approval of a project for teaching its disciplines in schools. Thus, a lot of clubs of martial arts have been entering primary and secondary schools and they are teaching martial arts to children between 5 and 14 years old. During the school year 2008/2009 there were: 400 sports clubs implementing the project; 500 schools involved; 60.000 students participating.Research limitations/implicationsIn the paper two important points are proposed in order to achieve the goal: the obligatory inclusion of martial arts in school education programs by the government; and a scientific monitoring of the effects of these programs on the improvement of pupils' school performances and on the reduction of violence among boys.Practical implicationsIn many cases some parents and school administrators still think that including martial arts in school programs may lead to incidents and instigating violence. But, the Italian experience shows that after the implementation of right projects in the schools, both parents and school administrators radically change their opinions on martial arts. Most cases have shown that after the first year just the parents who were initially dubious about the project ask the school for the reactivation of similar projects for the following years.Originality/valueThe paper identified a long‐term strategy to combat the problem of violence against women.