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31.
Sebastian Stegmann Marie-Élène Roberge Rolf van Dick 《Zeitschrift für Betriebswirtschaft》2012,82(2):19-44
We present a theoretical model on the processes that mediate and moderate the diversity-performance relationship. Past research on this topic—for example the categorization elaboration model (van Knippenberg et al. 2004)—has often focused on information elaboration as mediator. Complementing this cognitive perspective, we propose that group diversity can also stimulate group members to engage with each other emotionally, resulting in higher levels of empathy—an emotional state which arises from the comprehension and apprehension of fellow group members’ emotional state. Empathy, in turn, is likely to enhance performance through processes within a single group member and through processes between group members. At the core of the model lies the proposition that group- as well as individual-level empathy mediate the relationship between diversity of organizational units and the performance of individual members and groups at large (multilevel mediation). Furthermore, we specify moderating conditions for the relationship between diversity and empathy. Diversity beliefs and diversity climates are introduced as second-order moderators. 相似文献
32.
Lidia CARVAJAL GUTIÉRREZ Thomas G. JOHNSON 《International labour review / International Labour Office》2016,155(2):297-314
Based on a survey of participants in Canada's Seasonal Agricultural Workers Program, the authors’ three‐stage least squares estimation of a simultaneous equation model finds that migrants’ remittances enhance on‐farm investments in Mexico, which, in turn, increase farm income. Remittances are also found to have a positive influence on non‐farm income in Mexico, by giving respondents the possibility of starting a new business and diversifying their investments. These results support the hypothesis underlying the “new economics of labour migration” that remittances contribute to economic development by relaxing the credit constraint on the investment function of family farms. 相似文献
33.
Charbonneau Étienne Bromberg Daniel Henderson Alexander C. 《Public Organization Review》2020,20(1):63-78
Public Organization Review - Since the founding of the field of public administration, scholars have struggled with questions related to the “publicness” of public organizations... 相似文献
34.
SILVIANO ESTEVE‐PÉREZ FRANCISCO REQUENA‐SILVENTE VICENTE J. PALLARDÓ‐LOPEZ 《Economic inquiry》2013,51(1):159-180
This article uses survival analysis to investigate the duration of Spanish firms' trade relationships by destination over 1997–2006. Whereas firm export status is highly persistent, firms' destination portfolio is very dynamic: a typical firm‐country exporting relationship has a median duration of 2 years. Yet, if a firm manages to export to a country beyond 2 years the risk of exiting that market sharply falls afterwards. The results indicate that not only firm heterogeneity but also destination heterogeneity are crucial to explain survival in export markets. In particular, country (political) risk heavily shapes the effect of firm, product, and other destination characteristics on the length of trade relationships. Whereas firm productivity, comparative advantage, partners' GDP, and proximity enhance duration of trade with low‐risk countries, they have no effect on trade survival with high‐risk countries. On the contrary, information spillovers are particularly relevant to enhance survival of trade relationships with high‐risk countries. (JEL C41, F10, F14) 相似文献
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36.
GILBERTO GONZÁLEZ-PARRA LUCAS JÓDAR FRANCISCO JOSÉ SANTONJA RAFAEL JACINTO VILLANUEVA 《Mathematical Population Studies》2013,20(1):1-11
An age-structured model for childhood obesity at population level is fitted to empirical data in order to predict the proportion of overweighted and obese children in the 6–8 and 9–12 year old classes in the region of Valencia, Spain. 相似文献
37.
DOMINIQUE CLÉMENT 《Revue canadienne de sociologie》2011,48(2):121-135
Cet article propose un cadre théorique pour développer une sociologie des droits humains en s'intéressant aux mouvements sociaux dans le but de comprendre les cultures de droits locales. Si le droit humain est une idée qui se développe historiquement principalement à travers l'État, on remarque qu'au Canada, les avancées des droits de l'homme sont le fait de militants travaillant sur le terrain. Dans cet article, on explore aussi les écrits en sociologie au Canada. Les auteurs argumentent qu'on observe un sérieux manque d'engagement de la part des sociologues anglophones et francophones au Canada et que trop peu d'entres eux proposent de réelles études nationales. Évidemment, l'accès restreint à l'information législative représente un obstacle sérieux à la recherche académique au Canada. This article offers a framework for developing a sociology of human rights using social movements to understand local rights cultures. The idea of human rights has historically been highly statist, but grass‐roots activism has been at the heart of the most profound human rights advances in Canada. The article also raises questions about the current state of sociological writing about Canada. The author contends that there is a serious lack of engagement among English and French sociologists, and too few scholars provide genuine “national” studies. Moreover, restrictive access to information legislation represents a serious obstacle to academic research in Canada. 相似文献
38.
Abstract. In this article, we develop a test for the null hypothesis that a real‐valued function belongs to a given parametric set against the non‐parametric alternative that it is monotone, say decreasing. The method is described in a general model that covers the monotone density model, the monotone regression and the right‐censoring model with monotone hazard rate. The criterion for testing is an ‐distance between a Grenander‐type non‐parametric estimator and a parametric estimator computed under the null hypothesis. A normalized version of this distance is shown to have an asymptotic normal distribution under the null, whence a test can be developed. Moreover, a bootstrap procedure is shown to be consistent to calibrate the test. 相似文献
39.
ANESTIS ANTONIADIS PIOTR FRYZLEWICZ FRÉDÉRIQUE LETUÉ 《Scandinavian Journal of Statistics》2010,37(4):531-552
Abstract. The Dantzig selector (DS) is a recent approach of estimation in high‐dimensional linear regression models with a large number of explanatory variables and a relatively small number of observations. As in the least absolute shrinkage and selection operator (LASSO), this approach sets certain regression coefficients exactly to zero, thus performing variable selection. However, such a framework, contrary to the LASSO, has never been used in regression models for survival data with censoring. A key motivation of this article is to study the estimation problem for Cox's proportional hazards (PH) function regression models using a framework that extends the theory, the computational advantages and the optimal asymptotic rate properties of the DS to the class of Cox's PH under appropriate sparsity scenarios. We perform a detailed simulation study to compare our approach with other methods and illustrate it on a well‐known microarray gene expression data set for predicting survival from gene expressions. 相似文献
40.
Positioning: The Discursive Production of Selves 总被引:17,自引:0,他引:17