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131.
Robina-Ramírez Rafael Isabel Sánchez-Hernández M. Díaz-Caro Carlos 《Journal of Management and Governance》2021,25(2):627-654
Journal of Management and Governance - Corporate cases and scandals of corruption have emerged in the hospitality industry. In Spain, the recent Criminal Code (1/2015) proposed an organisational... 相似文献
132.
133.
Isabel M. Bernedo Miguel A. García-Martín María D. Salas María J. Fuentes 《European Journal of Social Work》2016,19(6):917-930
In Spain research has been conducted into the outcomes of foster care, although there is a need for further analysis, especially as regards the variables associated with placement disruption. In 2008 (T1) was collated information on all foster placements that were registered in three Spanish provinces. In 2014 (T2), data were gathered by reviewing the children's case notes and through interviews with the social worker responsible for each case. The resulting sample comprised 104 non-kinship foster children in long-term foster care who were being fostered in 86 families. The results obtained at T2 showed that the percentage of children who were still living with the same family (68.3%) was greater than the proportion of children whose circumstances had changed (31.7%). The social workers considered that placement disruption had occurred in 27 of the 33 cases. One of the main finding was placement disruption was associated with the older age at the time of being fostered and the emotional relationship quality between children and foster carers. A regression analysis showed that low levels of warmth and communication in the relationship between child and foster carers were shown to be a predictor of placement breakdown. Implications for practice are discussed. 相似文献
134.
In certain countries population data are available in grouped form only, usually as quinquennial age groups plus a large open-ended range for the elderly. However, official statistics call for data by individual age since many statistical operations, such as the calculation of demographic indicators, require the use of ungrouped population data. In this paper a number of mathematical models are proposed which, starting from population data given in age groups, enable these ranges to be degrouped into age-specific population values without leaving a fractional part. Unlike other existing procedures for disaggregating demographic data, ours makes it possible to process several years' data simultaneously in a coherent way, and provides accurate results longitudinally as well as transversally. This procedure is also shown to be helpful in dealing with degrouped population data affected by noise, such as those affected by the age-heaping phenomenon. 相似文献
135.
136.
Jing Chen Silvio Micali Rafael Pass 《Econometrica : journal of the Econometric Society》2015,83(4):1619-1639
Mechanism design enables a social planner to obtain a desired outcome by leveraging the players' rationality and their beliefs. It is thus a fundamental, but yet unproven, intuition that the higher the level of rationality of the players, the better the set of obtainable outcomes. In this paper, we prove this fundamental intuition for players with possibilistic beliefs, a model long considered in epistemic game theory. Specifically, • We define a sequence of monotonically increasing revenue benchmarks for single‐good auctions, G0≤G1≤G2≤⋯, where each Gi is defined over the players' beliefs and G0 is the second‐highest valuation (i.e., the revenue benchmark achieved by the second‐price mechanism). • We (1) construct a single, interim individually rational, auction mechanism that, without any clue about the rationality level of the players, guarantees revenue Gk if all players have rationality levels ≥k+1, and (2) prove that no such mechanism can guarantee revenue even close to Gk when at least two players are at most level‐k rational. 相似文献
137.
In this paper a new generalized least squares procedure for estimating VARMA models is proposed. This method differs from existing ones in explicitly considering the stochastic structure of the approximation error that arises when lagged innovations are replaced with lagged residuals obtained from a long VAR. Simulation results indicate that this method performs better than the Double Regression method and similar to Mauricio's (1995) exact maximum likelihood estimation procedure. 相似文献
138.
Darrel Montero Connie Forrester Traci Grannan Lisa Howard Priscilla Salas 《Journal Of Human Behavior In The Social Environment》2013,23(8):994-1009
Stem cell research is a fairly new technological advancement that has been accompanied by a wide range of support and scrutiny. On February 22, 1997, Dolly, the sheep, was successfully cloned in Scotland, while controversy erupted over the moral, ethical, and social implications of creating life. Though many agree that using human embryos is morally acceptable, the United States, Canada, Australia, United Kingdom, and European countries have passed legislation limiting or prohibiting stem cell research. This article considers the biopsychosocial benefits and potential hazards of stem cell research and how this research may affect social work practice. 相似文献
139.
We examine demand for union membership amongst young and adult workers in Britain, Canada, and the United States. Using a
model of representation advanced by Farber (1983, 2001) and Riddell (1993), we find that a majority of the union density differential
between young and adult workers in all three countries is due to supply-side constraints rather than a lower desire for unionization
by the young. This finding lends credence to two conjectures: first, tastes for collective representation do not differ substantially
among workers (either by nationality or by age) and second, union representation can be fruitfully modeled as an experience-good.
The experience-good properties of union membership explain the persistence of union density differentials (in this case between
youth and adults) in the face of equal levels of desired representation.
An earlier version of this paper appeared as Centre for Economic Performance (CEP) discussion paper dp515, January 2002. This
paper was produced under the “Future of Trade Unions in Modern Britain” program supported by the Leverhulme Trust and with
the financial help of the Social Sciences and Humanities Research Council (SSHRC) of Canada. We thank Jo Blanden, Andy Charlwood,
David Metcalf, and Steve Machin for comments on an earlier draft. We dedicate this paper to our mentor and friend, the late
Noah Meltz, who passed away as this paper was being written. 相似文献
140.
In this article we show that the picture emerging from models that allow for generalized parameter heterogeneity in convergence equations changes our view of the convergence process within the OECD. Estimation methods that allow for non- or partial heterogeneity stress the importance of transitional dynamics. Thus the observed reduction in the dispersion of per capita income is mostly explained by transitional dynamics. When generalized parameter heterogeneity is allowed for, we find that the observed narrowing of incomes has little bearing on transitional dynamics. Convergence in this case happens because the long-run features of these countries are becoming increasingly similar. 相似文献