HAL Université de Tours
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Relationship Stickiness, International Trade, and Economic Uncertainty
No full textInternational audienceWe study how stickiness in business relationships influences the trade impact of aggregate uncertainty. To begin, we construct a product-level index of relationship stickiness using firm-to-firm relationship duration data. We then demonstrate how relationship stickiness shapes trade dynamics in response to uncertainty shocks. We find that episodes of uncertainty lead to a decline in the overall establishment of new business relationships, with the impact varying depending on the level of stickiness. In markets characterized by high stickiness, uncertainty shocks primarily impede investments in new firm-to-firm relationships. In contrast, for non-sticky products, the adjustment to uncertainty shocks mainly manifests as the disruption of existing relationships
Simultaneous improvement of permittivity and nonlinear properties and loss tangent reduction through semi-wet route in NiO-modified CaCu3Ti4O12 ceramics: grain boundaries effect
No full textInternational audienc
Quelles réponses comportementales de la part des consommateurs vis-à-vis des marques faisant l’objet de scandales ?
No full textInternational audienceUne étude de cas, prenant la forme d’une analyse documentaire, a été réalisée afin de comprendre de caractériser et de classifier les réponses comportementales des consommateurs d’une marque ayant fait l’objet d’un scandale, et ce en fonction du niveau de haine ressentie. Douze entreprises, issues de domaines d’activités stratégiques différents, ayant dû récemment faire face à une crise majeure ont été étudiées pour mettre en exergue et expliquer les réactions comportementales des consommateurs. Une grille de lecture proposant d’établir des liens entre les comportements des entreprises, les réactions des consommateurs et les réponses des entreprises a été établie. Nos résultats confirment la littérature sur les comportements des entreprises (Makarem et Jae, 2016) et les liens entre haine et résistance (Buffaz, Perraud, Rodriguez, 2024) et permettent de recommander aux marques une réponse appropriée et spécifique à chaque réaction des consommateurs en fonction du type de scandale identifié
L'économie des villas et des fermes du Haut-Empire dans les monts du Cantal (France), entre agropastoralisme et extraction minière
No full textInternational audienceThis article examines the rural economy in the Cantal moun-tains, located within the Arverni territory during the Roman Empire, focusing on villas and farms in mid-mountain areas. Through archaeological surveys and analysis, it reveals a network of secondary settlements and villas that integrated agriculture, livestock farming, and mining, notably lead-silver extraction. Particular attention is given to the economic role of villas, as seen in their architectural investments, ceramic production, and integration into trade networks supplying wine, oil, and pottery. The study also highlights the strategic placement of these sites along key trade routes, underscoring their connection to regional markets. Despite challenges posed by the terrain, these mid-mountain zones were dynamic contributors to the regional economy, reflecting a blend of local production and goods brought in from elsewhere. The findings suggest an adaptive economy that leveraged the area’s natural resources while participating in broader economic systems
L'action syndicale pour la défense de l'intérêt collectif de la profession
No full textInternational audience(Soc. 22 janv. 2025, no 23-17.782, D. 2025. 549, chron. M.-P. Lanoue ; Dr. soc. 2025. 285, obs. C. Radé ; RDT 2025. 192, chron. I. Odoul-Asorey ; Procédures 2025, no 58, obs. A. Bugada ; JCP S 2025. 1079, note A. Teissier ; BJT 2025/3, p. 36, obs. A. Martinon
The role of flow in consumer environmental commitment applied to the case of immersive 360° educational videos
No full textInternational audienceNowadays, the development of consumers' environmental commitment has become a major societal issue. This study examines the effects of interactivity in a 360° immersive video on environmental commitment. To achieve the research objectives, an initial experiment was conducted with a sample of 60 individuals, divided into two subgroups of 30 participants each. After watching a 360° immersive video raising awareness about ocean pollution, self-reported measures of flow, concern, information, control, and curiosity were collected. At this stage, the analysis of the results has not yet been finalized, and a second phase of data collection will be implemented to expand the sample in each experimental condition
Impact d’un label multi-niveaux sur la valeur perçue : le cas de l’indice de réparabilité appliqué à la vente d’un smartphone
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A missing paradigm: deciphering endocrine innovations among diverging regulations of alleles, paralogous genes and orthologous genes
No full textInternational audienceIn endocrinology, there are many similarities in the regulation of gene expression between alleles, paralogous genes or orthologous genes, at the genetic or epigenetic level. However, there are also major differences in the spatial and temporal expression patterns of these genes, in particular between species. In few cases, it has been shown in vitro and/or in vivo that regulatory differences are mainly due to subtle differences (from one bp to less than 12 bp) in the nucleotide sequence of transcription factor-binding sites localized in the vicinity of the proximal promoter. In this short review, we propose to cite some of them, without claiming to be exhaustive. We also briefly review new methodologies that allow for more global studies of comparisons of expression regulations at the transcriptional level. We also discuss whether such studies could have given rise to any paradigm