A new generalized weighted Weibull distribution with decreasing,increasing, upside-down bathtub,N-shape and M-shape hazard rate

Recently, Domma et al. [An extension of Azzalinis method, J. Comput. Appl. Math. 278 (2015), pp. 37–47] proposed an extension of Azzalini's method. This method can attract readers due to its flexibility and ease of applicability. Most of the weighted Weibull models that have been introduced are with monotonic hazard rate function. This fact limits their applicability. So, our aim is to build a new weighted Weibull distribution with monotonic and non-monotonic hazard rate function. A new weighted Weibull distribution, so-called generalized weighted Weibull (GWW) distribution, is introduced by a method exposed in Domma et al. [13]. GWW distribution possesses decreasing, increasing, upside-down bathtub, N-shape and M-shape hazard rate. Also, it is very easy to derive statistical properties of the GWW distribution. Finally, we consider application of the GWW model on a real data set, providing simulation study too.     

A Fuzzy Index and Severity Scale to Measure Violence Against Women

Social Indicators Research - Measuring and comparing levels of violence against women across individuals or countries are controversial exercises, and yet they remain essential to understanding the...     

A spatial analysis on Italian unemployment differences

Using spatial econometric models, this paper focuses attention on the spatial structure of provincial unemployment disparities of Italian provinces for the year 2003. On the basis of findings from the economic literature and of the available socio-economic data, various model specifications including supply- and demand-side variables are tested. Further we use ESDA analysis as equivalent to integration analysis on time series; therefore it is applied on each variable, dependent and independent, involved in the statistical model. The suggestions of ESDA lead us to the most adequate statistical model, which estimates indicate that there is a significant degree of neighbouring effect (i.e. positive spatial correlation) among labour markets at the provincial level in Italy; this effect is present notwithstanding we controlled for local characteristics. The unemployment shows a polarized spatial pattern that is strongly connected to labour demand and to a much lesser extent to the share of young population and economic structural composition.     

From Transition to Innovation: Policy Issues in a Knowledge-based Economy

This paper contains a general vision of the main issues on innovation policies in East European new member countries and candidate countries. It is based both on the data taken from the main European benchmarking studies on innovation perspectives, and on the direct experience of advisors who worked in East European pilot countries (Slovenia). This paper focuses on the problems arising from the encounter of European innovation policies and local culture and governance structures in these countries. This situation shows that the innovation phase, following transition, generally calls for a further tuning of EU innovation policies in these countries. In order to develop effective market spin-offs from innovation policies, greater attention should be given to triggering bottom-up policies at regional level by reducing decision-making centralism; lowering the risk of imitative and trend-oriented policies; supporting the birth of new enterprises besides backing the existing ones; developing mostly software rather than hardware policy components. All of this should fit in a general framework recognising the central role of individuals – and thus of culture, starting from entrepreneurial culture – within a knowledge-based innovation process. The recent Slovenian action plan for innovation is included as an example of a strategic plan able to spotlight these main issues.     

NORMS OF PUNISHMENT: EXPERIMENTS WITH STUDENTS AND THE GENERAL POPULATION

Norms of cooperation and punishment differ across societies, but also within a single society. In an experiment with two subject pools sharing the same geographical and cultural origins, we show that opportunities for peer punishment increase cooperation among students but not in the general population. In previous studies, punishment magnified the differences across societies in people's ability to cooperate. Here, punishment reversed the order: with punishment, students cooperate more than the general population while they cooperate less without it. (JEL C72, C90, Z13)     

Groupthink and Project Performance: The Influence of Personal Traits and Interpersonal Ties

This study explores whether the negative impact of “groupthink concurrence‐seeking behavior” (GTB) on business process reengineering (BPR) projects is affected by group members personal traits and interpersonal ties within the group. To this purpose we conduct and present the results of a longitudinal controlled field experiment over 18 BPR projects lasting 3 months and involving 18 teams comprising 71 first‐year MBA students. The main contribution of this study is twofold. First, we explicitly consider and measure the core construct of groupthink phenomenon: that is, GTB. Existing organizational behavior literature has, contrarily, considered only its causes, symptoms, and outcomes. Second, we show evidence that GTB does have a negative impact on group performance in BPR project settings. In this regards, results also indicate that while perceived control, conscientiousness and interpersonal evaluation mitigate the negative impact of GTB on group project performance, confidence, and previous relationships amplify this negative impact, even if they have a direct positive effect on performance. Thanks to the findings of this study, we are able to provide valuable suggestions to managers in charge of BPR projects for ensuring effective performance of project teams and controlling for potential obstacles due to GTB.     

Exploring the absolutist vs relativist perception of poverty using a cross-country questionnaire survey

Questionnaires eliciting the absolutist vs relativist perception of poverty are administered to 1941 undergraduate students in eight countries - Bolivia, Brazil, Italy, Kenya, Laos, Sweden, Switzerland and the UK. We find that the perception of poverty expressed by a large fraction of respondents exhibits both absolutist and relativist concerns, with the former components prevailing over the latter. High-income countries exhibit a significantly more pronounced relativist attitude. Personal characteristics such as past experience of material hardship and relative standard of living play a germane role in shaping respondents’ views.     

The Role of Declarative Pointing in Developing a Theory of Mind

It has been suggested that the child's capacity to represent and influence another person's attentional state about an object or event in triadic interactions (declarative communication) is an early manifestation of social understanding in the second year of life. This study tested the following predictions: First, in typically developing children declarative pointing emerges later than imperative pointing. Second, the capacity to use declarative pointing is linked to the understanding of other's intentions (i.e., to the capacity to reproduce other's intended acts after seeing failed attempts to perform these acts). The study was conducted in 2 phases. In the first phase, the parents of 133 typically developing infants completed the Questionnaire on Pointing Gesture, which allowed the identification of babies able to use pointing in familiar contexts. Of these children, 40 participated in the experiment and were tested on 2 tasks: a new task designed to elicit production and comprehension of imperative and declarative pointing, and a modified version of Meltzoff's (1995) task designed to assess understanding of others' intentions. Tasks were administered to each participant in 2 sessions carried out at 3‐month intervals. Children were 12 months old on average at the 1st session and 15 months old on average at the 2nd session. Results showed that children produced and understood declarative pointing later than imperative pointing. Furthermore, production of declarative pointing was clearly linked to understanding of others' intentions. No relation was found between production and comprehension of imperative pointing and intention understanding. Implications from the association between declarative pointing and inferring other's intentions are discussed.