排序方式: 共有106条查询结果,搜索用时 17 毫秒
51.
Daniele Vignoli Elena Pirani Alessandra Venturini 《Journal of Family and Economic Issues》2017,38(1):118-128
Previous research has noted that divorce rates tend to be higher when there is a surplus of marriageable women in the marriage market. This paper argues that the size and the composition of the female migrant population can affect the marital stability of natives. We tested such hypothesis taking Italy as a case-study because it exemplifies a male-breadwinner society and because it is a relatively new immigration country. We estimated discrete-time event history models predicting marital disruption on data from the nationally representative 2009 Family and Social Subjects survey. Our results illustrated that the increasing presence of first mover migrant women (coming from Central-South America and Eastern Europe) was associated with higher separation risks among natives, especially for couples with lower human capital. By advancing the relevance of foreigners as a potential driver of natives’ family life courses, our findings add to our understanding of partnership dynamics in recent immigration countries. 相似文献
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This article proposes a Bayesian estimation framework for a typical multi-factor model with time-varying risk exposures to macroeconomic risk factors and corresponding premia to price U.S. publicly traded assets. The model assumes that risk exposures and idiosyncratic volatility follow a break-point latent process, allowing for changes at any point on time but not restricting them to change at all points. The empirical application to 40 years of U.S. data and 23 portfolios shows that the approach yields sensible results compared to previous two-step methods based on naive recursive estimation schemes, as well as a set of alternative model restrictions. A variance decomposition test shows that although most of the predictable variation comes from the market risk premium, a number of additional macroeconomic risks, including real output and inflation shocks, are significantly priced in the cross-section. A Bayes factor analysis massively favors the proposed change-point model. Supplementary materials for this article are available online. 相似文献
53.
Daniele Lorenzini 《Journal for Cultural Research》2018,22(2):154-166
AbstractIn this paper, I argue that the appropriate answer to the question of the form contemporary neoliberalism gives our lives rests on Michel Foucault’s definition of neoliberalism as a particular art of governing human beings. I claim that Foucault’s definition consists in three components: neoliberalism as a set of technologies structuring the ‘milieu’ of individuals in order to obtain specific effects from their behavior; neoliberalism as a governmental rationality transforming individual freedom into the very instrument through which individuals are directed; and neoliberalism as a set of political strategies that constitute a specific, and eminently governable, form of subjectivity. I conclude by emphasising the importance that Foucault’s work on neoliberalism as well as the ancient ‘ethics of the care of the self’ still holds for us today. 相似文献
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Reis P Moro A Bins Ely V Fernandes C Vilagra J Peres L Fogaça Junior O Merino E 《Work (Reading, Mass.)》2012,41(Z1):374-379
This study was conducted with older adults living in a long-stay institution in the city of Foz do Iguacu, Parana, Brazil with the objective of assessing the influence of muscle strength loss in the risk of falls. The sample consisted of 65 elderly who walk without the aid of support for locomotion, 37 women and 28 men, aged between 67 and 80 years. The risk of falls was assessed through the TUG test. To determine the handgrip strength, a hand dynamometer model Jamar ( was used, which provides the result in kg / force (kgf), being held only with the dominant hand. The results showed that in the last 12 months, only 32% of the elderly surveyed had no fall and the average handgrip strength was 24.32 ( 11.22 kgf; 40% had one fall and the average handgrip strength was 23.82 ( 10.18 kgf; 8% had two falls and the average handgrip strength was 19.48 ( 8.21 kgf and 20% had more than one fall and the average handgrip strength of 18.13 ( 7.33 Kgf., indicating that the force levels are statistically lower among elderly at high risk of falls (p> 0.05). It was concluded that the lower the force level, the greater the likelihood of falls. Thus, it is important to stress that due to the loss of muscle strength, all ergonomic hazards and architectural barriers must be removed so that older adults can perform their tasks more easily, with comfort and safety. 相似文献
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Moro Giovanni 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2020,31(6):1392-1393
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - 相似文献
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Serafino Cicerone Gianlorenzo D’Angelo Gabriele Di Stefano Daniele Frigioni Alfredo Navarra 《Journal of Combinatorial Optimization》2009,18(3):229-257
In this paper, we study the problem of planning a timetable for passenger trains considering that possible delays might occur due to unpredictable circumstances. If a delay occurs,
a timetable could not be able to manage it unless some extra time has been scheduled in advance. Delays might be managed in
several ways and the usual objective function considered for such purpose is the minimization of the overall waiting time
caused to passengers.
We analyze the timetable planning problem in terms of the recoverable robustness model, where a timetable is said to be recoverable robust if it is able to absorb small delays by possibly applying given limited recovery capabilities. The quality of a robust timetable
is measured by the price of robustness that is the ratio between the cost of the recoverable robust timetable and that of a non-robust optimal one. 相似文献
59.
This paper reports an experiment designed to test whether prior consultation within a group affects subsequent individual decision-making in tasks where demonstrability of correct solutions is low. In our experiment, subjects considered two paintings created by two different artists and were asked to guess which artist made each painting. We observed answers given by individuals under two treatments: In one, subjects were allowed the opportunity to consult with other participants before making their private decisions; in the other, there was no such opportunity. Our primary findings are that subjects in the first treatment evaluate the opportunity to consult positively, but they perform significantly worse and earn significantly less. 相似文献
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Giambona Francesca Grassini Laura Vignoli Daniele 《Statistical Methods and Applications》2022,31(4):815-846
Statistical Methods & Applications - Economic insecurity has increased in importance in the understanding of economic and socio-demographic household behaviour. The present paper aims to... 相似文献