This paper examines and compares wine price indices available on the wine market with those proposed in academia. We especially analyze the impact illiquidity has on the different indices and validate our findings using a simulation which allows us to define the biases induced by illiquidity on the statistical properties of the indices. We also propose adjustments to help market participants improve the reliability of wine indices and ultimately their decision-making. Our evidence indicates that both the volatility and the beta of fine wine is understated when estimated with existing wine index data. The true volatility and beta of the First Growths from Bordeaux appear to be close to 20%, respectively 0.45–0.60, suggesting that the diversification potential of fine wine is more limited than commonly believed.
The objective of this research is to understand user commitment in the context of social networks. We propose a conceptualization of commitment as a cognitive and affective immersion activity that evolves over time. Our research aims are, firstly, to define commitment through social networks and understand its role in creating relationship between users and organizations; secondly, to test the hypothesis that user commitment is an evolving process; and, thirdly, to propose a commitment-based typology of social network users. We followed an exploratory approach and used content analysis on face-to-face interviews with 18 male and female social network users. Our main results show that commitment starts from a simple interaction and evolves into a cognitive and emotional experience. According to our analysis, users can be classified into three categories of commitment. Content creators are highly motivated and passionate about their activities on social networks. They create their own content with the aim of publishing it on different networks. Members of this category consider themselves leaders and opinions makers. Content consumers exhibit a strong desire for learning and seek, mainly, to acquire knowledge. They are motivated by developing their understanding in their chosen areas of interest. For them, social network can be considered as a new method to learn and improve their level of knowledge. Social followers are driven by the pursuit of social interactions with friends, family and other social network users. Their main activities consist of following the news in their community, sharing and exchanging information, such as pictures and videos, within their network.
Inventory managers do not predominantly follow normative optimization models. At best, they introduce a level of bounded rationality in their inventory replenishment decisions. This paper examines the behavior of inventory decision-makers under continuous review in a decentralized supply chain, using an experimental approach with unknown market demand and local information availability. The analysis reveals that not only the magnitude and the variability of order quantity tend to be larger, but also that the order-time intervals is lengthen and highly variable while moving upstream along the supply chain. The role of the inventory managers replenishment decisions on the echelon holding, backorder, and total costs, is also investigated. Finally, a normative model is designed and its solutions are compared to the experimental results. It is observed that humans do not operate in a perfectly optimal way, but are generally reluctant to risk increasing backorder costs and reducing inventory carrying cost, even if this would lead to lower total cost.
Après le burn-out, le bore-out serait la nouvelle menace qui risque de rendre malades les salariés. La nouvelle a suscité un grand intérêt médiatique. Pourtant, une analyse précise permet de relativiser le phénomène. Le livre à la base à ce déferlement médiatique, sous le vernis d’un raisonnement qui paraît scientifique, n’est pas sérieux.
This article analyses the way French-speaking Swiss territories, cantons Geneva, Vaud, Neuchâtel and Jura, are represented in the Russian web space. A quantitative analysis of the Swiss translated and Russian original websites was carried out, which allowed us to define the rating of the chosen territories. A conclusion of the undertaken study of the influence of cultural codes on the difference in communicative practices of the representation of territories was drawn. The explanation of the existing difference in the positioning of certain regions was offered. The typical communication characteristics of the Russian websites relating to Swiss regions and Swiss websites in Russian were unlighted in conclusion.
The objective of this article is to characterize the company visit as a situation of hospitality and understand how it can be a differentiator. Thus, it addresses managerial concerns about the transmission of expertise or craftsmanship and visitor relations. This exploratory works serves two purposes: it primarily aims to introduce the concept of company hospitality into the marketing literature by understanding and completing the following dimensions of company hospitality: social and behavioral, spatial, temporal, convivial, physical, hedonistic and spiritual. Then it tries to understand visitor responses and reactions to hospitality, or on the contrary, the inhospitable nature of the company.
L’équipe de l’ILCE a mené de 2013 à 2015 une recherche visant à déterminer si et dans quelle mesure, à l’aide de données librement accessibles, il est possible d’évaluer une entreprise suisse sous l’angle du risque de fraude. Le déroulement du projet et ses premiers résultats ont été présentés dans un précédent article (Expert Focus 15/12). Entre-temps, les 43 indicateurs identifiés, basés sur des informations librement dis-ponibles, ont fait l’objet d’une série de tests; voici les premiers résultats.
L’actualité regorge de récits d’entreprises victimes de cybercriminels. La digitalisa-tion des échanges laisse entrevoir autant d’opportunités que de risques. Comment amorcer ce virage? Cet article ambitionne de donner des pistes, non sans avoir au préalable clairement défini le contexte et les enjeux de la révolution digitale en ma-tière de sécurité de l’information.
Ce texte a pour objectif de présenter les raisonnements relatifs à l’inscription au bilan et à l’évaluation de frais de développement. En suivant un cas d'étude, l’auteur démontre qu’activer des frais de développement est une réelle obligation et pas seulement une option.
