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31.
Pietro Di Paola 《Immigrants & Minorities》2017,35(3):177-195
AbstractThis article engages with questions of the integration of different scales of analysis in the study of labour and radical movements: ‘transnational’, ‘national’ and ‘local’ or ‘trans-local’. The article places the study of transnational anarchism in a ‘national’ and ‘trans-local’ perspective. The analysis of the intersection between the networks of those who migrated from Italy and those who remained provides a fruitful means to uncover dynamics within the transnational anarchist movement and the interplay, in both directions, between home country, exile communities and host countries. The article focuses on the crucial, but still unexplored, contributions of communities of Italian anarchists abroad (in, among other places, London, Paris, Berne, Marseille, Barre and Buenos Aires) to the anti-militarist campaigns against the Italian colonial enterprise in Libya from 1911 to 1914, in terms of propaganda, theoretical debate, financing and countercultural production. The investigation of the initiatives of anarchist exiles and how they coordinated with their comrades in Italy provides a significant case study, not only to understand network-based transnational anarchism but also to reflect on mechanisms of political migration and their influence on the development of social conflicts. 相似文献
32.
On Stable Population Theory With Immigration 总被引:1,自引:0,他引:1
Pietro Cerone 《Demography》1987,24(3):431-438
The paper extends stable population theory to include a constant stream of immigration. Previous attempts at tackling the problem have either restricted themselves to a below-replacement native population or else used an approach that does not produce the values of all of the parameters explicitly. It is shown that under a constant stream of immigration, the population will asymptotically tend toward a constant, linear, or exponential behavior, depending on whether the fertility behavior is below, equal to, or above replacement level. All of the parameters are determined in terms of the characteristics of the population at the origin. 相似文献
33.
Dagum and Slottje (2000) estimated household human capital (HC) as a latent variable (LV) and proposed its monetary estimation by means of an actuarial approach. This paper introduces an improved method for the estimation of household HC as an LV by means of formative and reflective indicators in agreement with the accepted economic definition of HC. The monetary value of HC is used in a recursive causal model to obtain short- and long-term multipliers that measure the direct and total effects of the variables that determine household HC. The new method is applied to estimate US household HC for year 2004. 相似文献
34.
Giorgio Di Pietro 《Policy Studies》2018,39(1):37-53
It is often suggested that vocational education and training (VET) could be key to cut youth unemployment. VET programmes may provide young people with specific professional qualifications that enable them to successfully compete in the labour market. However, despite the great emphasis placed by governments and other institutions on these programmes, VET appears to be far from reaching its full potential in many countries. One barrier preventing students from pursuing this type of education is the stigma associated with VET. This paper looks at the role of media in changing the negative social perceptions of VET. Specifically, it examines whether in Italy the growing popularity of the cooking television reality show MasterChef has led to an increase in the number of students willing to study for a vocational qualification in hospitality and catering. The empirical results show that an increase in the number of MasterChef's viewers is associated with a higher proportion of students willing to attend hospitality and catering schools. This finding suggests that popular television cooking series like MasterChef may be a vehicle through which the image and the attractiveness of VET can be improved. 相似文献
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36.
Edoardo Otranto Massimo Mucciardi Pietro Bertuccelli 《Journal of applied statistics》2016,43(4):604-626
The recent literature on time series has developed a lot of models for the analysis of the dynamic conditional correlation, involving the same variable observed in different locations; very often, in this framework, the consideration of the spatial interactions is omitted. We propose to extend a time-varying conditional correlation model (following an autoregressive moving average dynamics) to include the spatial effects, with a specification depending on the local spatial interactions. The spatial part is based on a fixed symmetric weight matrix, called Gaussian kernel matrix, but its effect will vary along the time depending on the degree of time correlation in a certain period. We show the theoretical aspects, with the support of simulation experiments, and apply this methodology to two space–time data sets, in a demographic and a financial framework, respectively. 相似文献
37.
An Adaptive Simulation Framework for the Exploration of Extreme and Unexpected Events in Dynamic Engineered Systems
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The end states reached by an engineered system during an accident scenario depend not only on the sequences of the events composing the scenario, but also on their timing and magnitudes. Including these additional features within an overarching framework can render the analysis infeasible in practical cases, due to the high dimension of the system state‐space and the computational effort correspondingly needed to explore the possible system evolutions in search of the interesting (and very rare) ones of failure. To tackle this hurdle, in this article we introduce a framework for efficiently probing the space of event sequences of a dynamic system by means of a guided Monte Carlo simulation. Such framework is semi‐automatic and allows embedding the analyst's prior knowledge about the system and his/her objectives of analysis. Specifically, the framework allows adaptively and intelligently allocating the simulation efforts preferably on those sequences leading to outcomes of interest for the objectives of the analysis, e.g., typically those that are more safety‐critical (and/or rare). The emerging diversification in the filling of the state‐space by the preference‐guided exploration allows also the retrieval of critical system features, which can be useful to analysts and designers for taking appropriate means of prevention and mitigation of dangerous and/or unexpected consequences. A dynamic system for gas transmission is considered as a case study to demonstrate the application of the method. 相似文献
38.
Pietro Giorgio Lovaglio 《Journal of Statistical Computation and Simulation》2017,87(5):1048-1060
In the framework of redundancy analysis and reduced rank regression, the extended redundancy analysis model managed to account for more than two blocks of manifest variables in its specification. A further extension, the generalized redundancy analysis (GRA), has been recently proposed in literature, with the aim of incorporating external covariates into the model, thanks to a new estimation algorithm that manages to separate all the contributions of the exogenous and external covariates in the formation of the latent composites. At present, software to estimate GRA models is not available. In this paper, we provide an SAS macro, %GRA, to specify and fit structural relationships, with an application to illustrate the use of the macro. 相似文献
39.
Abstract. This paper uses proxies for university quality derived from Performance Indicators to evaluate the impact of university quality on the early labour market outcome of a cohort of recent Italian graduates. Institutional research quality is found to have a negative effect on the probability that both male and female graduates will be overeducated. Additionally, research inputs are positively related to men's wages. In contrast, teaching quality does not appear to enhance students’ economic success. 相似文献
40.