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131.
This article focuses on the application of a specific comparative methodology, the model family method (MFM), in measuring the income derived from minimum income schemes. The application of the MFM to the analysis of this policy field shows several criticalities such as the difficulty to analyze countries in which no national scheme exists, and in which both the intra-national variations and the discretionary power of street-level bureaucrats are significant. Stemming from the application of the MFM to the Italian case in the framework of an international project, the article analyzes whether and how this method can be developed also in said countries. In particular, it shows that, in order to do so, specific methodological choices and assumptions are necessary, built on a mixed research strategy aimed at complementing the data collected from institutional sources with in-depth interviews with social workers and the use of the vignettes technique.  相似文献   
132.
In this work, we modify finite mixtures of factor analysers to provide a method for simultaneous clustering of subjects and multivariate discrete outcomes. The joint clustering is performed through a suitable reparameterization of the outcome (column)-specific parameters. We develop an expectation–maximization-type algorithm for maximum likelihood parameter estimation where the maximization step is divided into orthogonal sub-blocks that refer to row and column-specific parameters, respectively. Model performance is evaluated via a simulation study with varying sample size, number of outcomes and row/column-specific clustering (partitions). We compare the performance of our model with the performance of standard model-based biclustering approaches. The proposed method is also demonstrated on a benchmark data set where a multivariate binary response is considered.  相似文献   
133.
Evidence suggests that the increasing life expectancy levels at birth witnessed over the past centuries are associated with a decreasing concentration of the survival times. The purpose of this work is to study the relationships that exist between longevity and concentration measures for some regression models for the evolution of survival. In particular, we study a family of survival models that can be used to capture the observed trends in longevity and concentration over time. The parametric family of log-scale-location models is shown to allow for modeling different trends of expected value and concentration of survival times. An extension towards mixture models is also described in order to take into account scenarios where a fraction of the population experiences short term survival. Some results are also presented for such framework. The use of both the log-scale-location family and the mixture model is illustrated through an application to period life tables from the Human Mortality Database.  相似文献   
134.
In Italy, it is believed that Tuesdays and Fridays are particularly unlucky days for weddings as well as the 17th day of each month. Previous studies realized in the aftermath of the Second World War have shown the strong influence that these superstitions had in determining the wedding dates in the entire country. We have used exhaustive data collection of all marriages celebrated in Italy in the years 2007–2009 to investigate whether superstitions are still able to influence the choices of spouses. We find that this influence is still present after the great economic, social and demographic transformation of Italian society. We also show that a wife’s education reduces the influence of superstition on the choice of the date of marriage while those who opt for a religious rite are also those who are more careful in avoiding inauspicious days.  相似文献   
135.
Europe has seen the development of a new research agenda in response to Islamist terror attacks of recent years. Researchers are not only trying to solve the “radicalization puzzle” in order to understand the reasons why young Muslims in Western countries are attracted to extremism, but they are also making proposals for de-radicalizing extremists and creating relationships of trust with Muslim communities. Directly or indirectly, Europe’s Muslim minorities are the objects of the interventions and preventive work under discussion. This study suggests an alternative approach. Rather than regarding Muslims in Europe as more or less passive objects of various anti-extremism interventions, it directs attention toward the strategies developed by European Muslims themselves in fighting Islamist extremism. Using qualitative interviews with leaders of five Sufi communities in Sweden, the study examines a series of strategies for meeting the challenges posed by extremists.  相似文献   
136.
Building on agency theory, we investigate whether and how salient external auditor characteristics (size, audit fees, non-audit fees, tenure) impact on the reported goodwill write-off. We use a sample of US firms applying SFAS 142. We find that Big-4 auditors are more prone to limit underestimated write-offs rather than overestimated write-offs and that auditors require higher fees from companies underestimating the write-offs. The findings are consistent with the auditors’ preference for more conservative goodwill and earnings values, which reduce their litigation and reputation costs. This preference can converge with the managerial interest to use unnecessary overestimated goodwill write-offs for earnings management purposes (e.g. to smooth the income or take big baths). Our findings do not support the hypotheses that non-audit fees and tenure affect the goodwill write-off. Our paper contributes to prior literature on external audit and financial accounting choices. Our study suggests that leniently audited discretional fair value estimates are likely to compromise the role of auditing (and of financial reporting) as an external control mechanism. Our study can contribute to the current policy debate around goodwill accounting.  相似文献   
137.
This paper is based on the concept of ‘logistics excellence’. In the first part the parameters that define such excellence in the internationalization process of companies are discussed, with particular attention to its effects on the design of logistics networks. A critical analysis of some Italian case studies of “logistics excellence” is presented, to show how some Italian companies, involved in foreign trade, have changed their network design in order to reach excellent performances. One of the most interesting results of this analysis is that in some cases goals behind decisions were too high (“overperformance”) and generated network designs that were too expensive and complex if set against a balanced needs analysis (of clients and logistics operators). Only those who have borne in mind their clients’ needs as well as the need of limiting network costs and have supported their systems with creative choices have managed to achieve the best results within the Italian logistics system. In the light of these considerations, the second part of the article analyses the logistics situation in commercial relations between Italy and Russia (with specific reference on export from Italy to Russia) and points out how, in the face of some structural problems posed by the logistics distribution in Russia, the network design solutions that can reduce costs the most are those which will turn out being the most suitable in the long run. In the light of this, the steps to be taken in order to support the design of adequate logistics networks connecting Italy and Russia are described; the options offered by intermodal transport when adequately combined with newly designed logistics networks are also highlighted.  相似文献   
138.
Good social and political theory is parsimonious, cumulative, counter‐intuitive, and relevant to well‐intended efforts to solve gripping social problems. This introduction to the Festschrift shows that in developing ‘rubbish theory’ and ‘cultural theory’ the work of Michael Thompson meets all these criteria. Added is a ‘top 10’ of quotes from Thompson's work, an overview of his academic career, as well as a bibliography.  相似文献   
139.
More than 80% of Italian men aged 18–30 live with their parents. We argue that one contributing factor to this remarkably high rate of cohabitation is parents' tastes for coresidence. In order to investigate the role of parental preferences, we estimate the effect of exogenous changes in parental income on rates of cohabitation in Italy using Survey of Households' Income and Wealth (SHIW) micro data from 1989 to 2000. In order to identify a source of exogenous variation in parental income, we use changes in fathers' retirement age induced by the 1992 reform of the Italian Social Security system as an instrumental variable for parental income. By raising retirement age, this reform forced some fathers to remain in the labor market longer than they would have otherwise, therefore raising their disposable income. We use a two‐sample instrumental variable (TSIV) strategy. Our TSIV estimates indicate that a rise in parents' income significantly raises the children's propensity to live at home: A 10% increase in annual parental income results in approximately a 10% rise in the proportion of men living with their parents. Although we cannot definitely rule out alternative interpretations, these results are consistent with our hypothesis that cohabitation is a normal good for Italian parents. (JEL: J120, J610, H550)  相似文献   
140.
ABSTRACT

This introduction to the special issue considers how independent research on mis/disinformation campaigns can be conducted in a corporate environment hostile to academic research. We provide an overview of the disinformation landscape in the wake of the Facebook-Cambridge Analytica data scandal and social platforms’ decision to enforce access lockdowns and the throttling of Application Programming Interfaces (APIs) for data collection. We argue that the governance shift from user communities to social media algorithms, along with social platforms’ intensive emphasis on generating revenue from user data, has eroded the mutual trust of networked publics and opened the way for dis/misinformation campaigns. We discuss the importance of open, public APIs for academic research as well as the unique challenges of collecting social media data to study highly ephemeral mis/disinformation campaigns. The introduction concludes with an assessment of the growing data access gap that not only hinders research of public interest, but that may also preclude researchers from identifying meaningful research questions as activity on social platforms becomes increasingly more inscrutable and unobservable.  相似文献   
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