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81.
Abstract. Cluster analysis and the classification tree technique are applied to investigate the relationship between the individual characteristics of Italian temporary help agency (THA) workers and their probability of achieving a temporary job. The application aims to show some advantages of these techniques with respect to traditional econometric tools. Sketches of the most common profiles among Italian THA workers are obtained as a result. Besides the typical THA worker pointed out by previous studies (young male workers, with a medium–high level of education, living in the Northern regions), two new profiles have been identified: the first comprising male manual workers with previous job experience, whose average age is over 30 and whose educational level is low; the second comprising young female workers with a medium–high level of education, working in the service sector or in the public sector. The results are compared with the more usual logit analysis and show their robustness.  相似文献   
82.
Journal of Population Research - Many scholars share the assumption that demographic patterns in the world are converging over time. The present study analyses the temporal trends of specific...  相似文献   
83.
Social Indicators Research - In this article, we examine the expectations of the economic outlook, fear of the future, and behavioural change during the first Covid-19 wave, for three European...  相似文献   
84.
The structure of knowledge systems is a crucial component of the effort to make these systems effective and acceptable to users. This paper argues that the structure must correspond with the nature of knowledge, as the externalization of cognitive phenomena, in the form of intellectual nuggets that include topics, stories, concepts, and images. Lessons from the structuring of organizations suggest that the platform and the matrix approaches could be adopted in the design of knowledge systems. The paper then describes the advantages and limitations of these solutions.  相似文献   
85.
Job Shop Scheduling With Deadlines   总被引:1,自引:0,他引:1  
In this paper we deal with a variant of the Job ShopScheduling Problem. We consider the addition of release dates anddeadlines to be met by all jobs. The objective is makespanminimization if there are no tardy jobs, and tardiness minimizationotherwise. The problem is approached by using a Shifting Bottleneckstrategy. The presence of deadlines motivates an iterative use of aparticular one machine problem which is solved optimally. Theoverall procedure is heuristic and exhibits a good trade-off betweencomputing time and solution quality.  相似文献   
86.
We use newly assembled data on regulation in several sectors of many OECD countries to provide evidence that regulatory reform of product markets is associated with an increase in investment. A component of reform that plays a very important role is entry liberalization, but privatization also has a substantial effect on investment. Sensitivity analysis suggests that our results are robust. (JEL: E22, L5)  相似文献   
87.
This paper discusses likelihood-ratio (LR) tests on the cointegrating (CI) rank which consider any possible dimension of the CI rank under the alternative. The trace test and lambda-max test are obtained as special cases. Limit quantiles for all the tests in the class are derived. It is found that any of these tests can be used to construct an estimator of the CI rank, with no differences in asymptotic properties when the alternative is fixed. The properties of the class of tests are investigated by local asymptotic analysis, a simulation study and an empirical illustration. It is found that all the tests in the class have comparable power, which deteriorates substantially as the number of random walks increases. Tests constructed for a specific class of alternatives present minor power gains for alternatives in the class, and require the alternative to be far from the null. No test in this class is found to be asymptotically (in-)admissible. Some of the new tests in the class can also be arranged to give a constrained estimator of the CI rank, that restricts the minimum number of common trends. The power gains that these tests can obtain by constraining the minimum number of common trends appears to be limited and outweighted by the risk of inconsistency induced by the constrains. As a consequence, no value of the CI rank should be left untested, unless it can be excluded beyond any reasonable doubt.  相似文献   
88.
Southern Mediterranean area, particularly the Middle East and North Africa (MENA), has been facing social, economic, environmental and political challenges related to the water scarcity and quality. Within the European SWMED project, a socio-economic survey was conducted in Palestine and Tunisia, in order to explore the water conditions, and the social and economic situations of local families. The article illustrates the research design and implementation, as well as the main results that were used to select the appropriate sustainable water management solutions to respond to the hydropolitical issues. Due to the huge use of water in agriculture and the difficulty of reducing the water consumption in this sector, fostering tools for domestic water saving may be a winning strategy for facing water scarcity in MENA region.  相似文献   
89.
We study labor-market discrimination of individuals with “specific” characteristics in Italy. We conduct a field experiment in two Italian cities: Rome and Milan, by sending “fake” CVs to real ads. We find that there is a strong penalty for homosexuals, i.e., about 30 % less chance to be called back compared to a heterosexual male and even more so if they are highly skilled. On the other hand, we find no penalty for homosexual females. We also find a beauty premium for females only but this premium is much lower when the “pretty” woman is skilled.  相似文献   
90.
In discussions of regulations governing same-sex marriage and adoption by gays and lesbians, the issue of state secularism is often called into question. This study aims to test the mediating effects of state secularism on the relationship between Catholic identity, political orientation, and gay civil rights. Participants were Catholic Italians who completed a questionnaire measuring the constructs under investigation. Results showed that state secularism mediates the effects of Catholic identity and political orientation on attitudes toward same-sex marriage and adoption by gays and lesbians.  相似文献   
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