迪卡侬:一家从不打广告的实体店

正迪卡侬最显著的一个特点就是——抠。为了省钱,这家开了40年的大公司不但没有一点法国的贵族气质,而且抠得连家庭主妇都自愧不如。真的这么差钱吗?不是,这家店花钱只有一个原则——六亲不认,只认用户。哪家实体店可以拍着胸脯说:我们不怕电商?几个月前,“一代鞋王”百丽贱卖退市,世界500强的沃尔玛,在中国成了关店王,玛莎百货关闭中国所有门店,2016年一年,就连华润万家也竟然关了800     

Organizing for Intergenerational Learning and Knowledge Sharing

The increased age diversity in society challenges organizations to rethink the purpose and structuring of learning. This article proposes that an intergenerational learning (IL) approach can be useful for addressing the emergent needs, since IL implies a reciprocal process of learning and knowledge development. Taking an IL approach involves a shift from “succession of knowledge” to “co-creation of knowledge” in knowledge-sharing efforts. This shift becomes crucial as the digital generation enters the workforce. This paper presents insights from a case where students and entrepreneurs were engaged in an IL project to learn about business advantages and social media.     

Housing and children: simultaneous decisions?—a cohort study of young adults’ housing and family formation decision

This study contributes to earlier research on homeownership and childbearing by taking into account the potential simultaneity between these two life events. A dataset comprising three different Swedish birth cohorts suggests that these are events that are indeed simultaneous. Different tests indicate that taking this simultaneity into account gives an overall statistically significant improvement of the model fit. However, this result is most obvious for those young adults who faced increasing problems on the housing market. The childbearing decision of these cohorts also seems to be more sensitive to changes in the user cost.     

Modeling wind energy flux by a Birnbaum–Saunders distribution with an unknown shift parameter

In this paper, we discuss a Birnbaum–Saunders distribution with an unknown shift parameter and apply it to wind energy modeling. We describe structural aspects of this distribution including properties, moments, mode and hazard and shape analyses. We also discuss estimation, goodness of fit and diagnostic methods for this distribution. A computational implementation in R language of the obtained results is provided. Finally, we apply such results to two unpublished real wind speed data from Chile, which allows us to show the characteristics of this statistical distribution and to model wind energy flux.     

Obstacles invisibles et représentation des femmes aux postes de décision en Espagne

Les auteurs présentent les résultats d'une étude sur les caractéristiques personnelles et les qualifications d'hommes et de femmes assumant des fonctions de direction dans des entreprises espagnoles, leur situation professionnelle et leur point de vue sur l'égalité des sexes. Par rapport à leurs homologues masculins, les Espagnoles occupant des postes à responsabilités sont plus jeunes mais aussi qualifiées, voire plus, et elles ont moins d'enfants. Cependant, elles sont toujours confrontées à des obstacles qui empěchent la pleine exploitation d'un capital humain précieux. Malgré les mesures adoptées, plus de neuf postes de décision sur dix sont toujours occupés par des hommes.     

On‐the‐job training in Europe: Determinants and wage returns

Using data from the European Community Household Panel on six countries over the period 1995–2001, this article investigates the determinants of workers’ participation in training activities and the effects of training on wages. Based on measures of four distinct training types, the authors find that while OLS estimates yield significant wage returns to training for nearly all of the countries, fixed‐effects estimations show returns to be not statistically different from zero. This suggests that wage returns to training might be overstated due to failure to take adequate account of the correlation of training with confounding factors that affect wages.     

Perceptions on dynamics and mobilities in the Triple Border between Argentina,Brazil and Paraguay

This study seeks to contribute to the ongoing discussion on border dynamics, mobilities and migration. It focuses on the perceptions around these categories in the Triple Border between Argentina, Brazil and Paraguay, also known as tri-border area or triple frontier. This region is characterized by contrasting elements, including poverty, inequality and abundant natural resources, as well as a significant flow of people and goods, which may not always conform to legal frameworks. We combine the ethnographic approach with a broader regional perspective, necessary to contextualize the strategies implemented by local population in order to capitalize on the presence of the international frontiers. Finally, we discuss the limitations of public policies that fail to reach those living in the material and symbolic borders of society.     

Poverty Assessment in Degraded Rural Drylands in the Monte Desert,Argentina. An Evaluation Using GIS and Multi-criteria Decision Analysis

The work aims to contribute to the construction a local-scale poverty indicator, which contemplates multiple dimensions and allows for spatialization of socioeconomic data for a rural area in the Monte Desert. Given the evident and widely studied relationship between desertification processes and poverty, and aiming to contribute to integrating socioeconomic information to desertification assessment and monitoring, there arises the need for spatializing poverty by addressing its multiple dimensions, aspects poorly developed thus far. For this purpose, a data model was designed, which enabled integrating quantitative and qualitative information within the scope of geographic ?nformation systems (GIS) with multi-criteria decision analysis (MCDA), whereby it was possible to spatialize in detail the degree of poverty in the study area, laying the foundations for up-scaling the assessment to different scales. This work demonstrates the usefulness of GIS and MCDA as an instrument that enables progressing in new integral, interdisciplinary, multi-scale and multi-temporal approaches.     

Estimators for a Poisson parameter using ranked set sampling

Using ranked set sampling, a viable BLUE estimator is obtained for estimating the mean of a Poisson distribution. Its properties, such as efficiency relative to the ranked set sample mean and to the maximum likelihood estimator, have been calculated for different sample sizes and values of the Poisson parameter. The estimator (termed the normal modified r.s.s. estimator is more efficient than both the ranked set sample mean and the MLE. It is recommended as a reasonable estimator of the Poisson mean ( λ) to be used in a ranked set sampling environment.     

Perceived Variability in Social Relations and Psychological Distress: Toward a Variability Approach to Subclinical Depression

The present research aimed at (a) identifying different types of social relations with distinct extents of perceived variability, and (b) examining how perceived variability in social relations was related to psychological distress in a sample of 120 Chinese university students (Study 1) and 50 Chinese working adults (Study 2). Using questionnaires, three types of perceived social relations were identified in Study 1, namely supportive relations with more perceived support and less perceived conflict, conflictive relations with more perceived conflict and less perceived support, and variable relations with more perceived support and more perceived conflict. Using daily logs, three participant groups with distinct extents of perceived variability in daily relational experience were identified in Study 2, namely the low-variability, medium-variability, and high-variability groups. Moreover, results from both studies revealed that participants perceiving a high variability in their social relations experienced the highest level of psychological distress.