Short-Term Skilled Labour Movements and Economic Growth

Economic models typically study the long-term effects of migration, and hence emphasise their impact on a country's endowment of skills using net migration rates. This approach however does not take into account the contribution of short-term movements of skilled labour on a country's stock of knowledge and ability to innovate. This paper develops a theoretical approach to extend the analysis to gross migration flows, which captures the volume of interactions and the potential for knowledge exchanges between a country's skilled labour and workers living elsewhere. One implication of the approach developed is that higher growth can be achieved through higher international labour mobility, even if there is no net migration. Countries that find it difficult or impossible to attract skilled labour on a permanent basis may therefore enjoy the growth effect brought by skilled temporary migrants.     

Clinical sociology between social disease and sociological disease

This essay's aim is to explore the potential for relieving suffering with which clinical sociology can provide social actors. The author carries out a theoretical reflection of culture's function in human societies. Culture is an instrument for social actors, to give a meaning to what is happening at each moment. If culture does not grant an effective interpretation of reality, phenomena of disease can arise. This can happen for many different reasons, such as incoherent cultural representations or conflicts between different cultural issues. The paper outlines the kinds of cultural disease that can occur, as well as the possible causes of each. It also sets a link between cultural disease and the contemporary, general lack of cognitive references, due to historical changes – such as globalization – that have been happening too fast to be fully accepted by all.     

The project of a new of neural networks products line: An application

The aim of this paper is to propose a new approach to the issue ofpositioning and pricing a firm's new products line; it is shown here how to conceive an artificial neural system able to find the optimal solution. The formulation of the problem follows the model proposed by Dobson and Kalish, while the implementation is based on the Hopfield Neural Network, thus used here for a new class of problems. The model shows a capacity to converge to the optimal solution; besides its effectiveness, this technique appears to also be efficient if applied to such a production problem.     

A semi-analytical solution to the maximum-likelihood fit of Poisson data to a linear model using the Cash statistic

The Cash statistic, also known as the C statistic, is commonly used for the analysis of low-count Poisson data, including data with null counts for certain values of the independent variable. The use of this statistic is especially attractive for low-count data that cannot be combined, or re-binned, without loss of resolution. This paper presents a new maximum-likelihood solution for the best-fit parameters of a linear model using the Poisson-based Cash statistic. The solution presented in this paper provides a new and simple method to measure the best-fit parameters of a linear model for any Poisson-based data, including data with null counts. In particular, the method enforces the requirement that the best-fit linear model be non-negative throughout the support of the independent variable. The method is summarized in a simple algorithm to fit Poisson counting data of any size and counting rate with a linear model, by-passing entirely the use of the traditional χ2 statistic.     

Grandparental availability for child care and maternal labor force participation: pension reform evidence from Italy

In this paper, we exploit pension reform-induced changes in retirement eligibility requirements to assess the role of grandparental childcare availability in the labor force participation of women with children under 15. Our analysis shows that, among the women studied, those whose own mothers are retirement eligible have a 11% higher probability of being in the labor force than those whose mothers are ineligible. The pension eligibility of maternal grandfathers and paternal grandparents, however, has no significant effect on the women’s labor force participation. We also demonstrate that the eligibility of maternal grandmothers mainly captures the effect of their availability for childcare. Hence, pension reforms, by potentially robbing households of an important source of flexible, low-cost childcare, could have unintended negative consequences for the employment rates of women with young children.     

Does Religiosity Influence Retention Strategies in Nonprofit Organizations?

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Despite the rise of interest in nonprofit organizations’ (NPOs) retention strategies and organizational behaviour...     

Field of Study and University Graduates' Early Employment Outcomes in Italy during 1995–2004

Abstract. In a period of expanding higher education, the field of study becomes a key determinant of university graduates' labour market success. In this paper, by means of multivariate analyses of the quality of graduates' early employment outcomes, we first describe how the effect of different fields of study on the university‐to‐work transition changed between 1995 and 2004 in Italy. Second, we put forward some alternative hypotheses to interpret the changes observed over time and assess which ones seem to be more consistent with the data.     

Revised MRP for reducing inventory level and smoothing order releases: a case in manufacturing industry

Although material requirement planning (MRP) systems are widely used in manufacturing companies, they exhibit significant drawbacks. Rev MRP algorithm has been developed in order to reduce the system nervousness, generate a more regular pattern of order released and lower inventory levels. The aim of this paper is to test the Rev MRP algorithm on the case of one of the largest Italian manufacturing companies of home appliances. The company provided three sets of real data, referring to three different runs of their MRP. Results showed that the Rev MRP outperformed the company’s MRP smoothing the production order releases, eliminating overshoots and drastically reducing the inventory levels along the supply chain, even in case of frequent forecasts updates.     

Conditional expected utility

Let \({\mathcal {E}}\) be a class of events. Conditionally Expected Utility decision makers are decision makers whose conditional preferences \(\succsim _{E}\), \(E\in {\mathcal {E}}\), satisfy the axioms of Subjective Expected Utility (SEU) theory. We extend the notion of unconditional preference that is conditionally EU to unconditional preferences that are not necessarily SEU. We study a subclass of these preferences, namely those that satisfy dynamic consistency. We give a representation theorem, and show that these preferences are Invariant Bi-separable in the sense of Ghirardato et al. (Journal of Economic Theory 118:133–173, 2004). We also show that these preferences have only a trivial overlap with the class of Choquet Expected Utility preferences, but there are plenty of preferences of the \(\alpha \)-Maxmin Expected Utility type that satisfy our assumptions. We identify several concrete settings where our results could be applied. Finally, we consider the special case where the unconditional preference is itself SEU, and compare our results with those of Fishburn (Econometrica 41:1–25, 1973).