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La fin de l'eau ?
No full textLa Chaire Ressources Naturelles et Économie Locale organise sa 4ème conférence annuelle à la Faculté de Droit, Économie et Administration de Metz les 12 et 13 juin 2025, afin de réunir des chercheurs pour présenter et discuter de travaux théoriques et empiriques dédiés à l’économie des ressources naturelles.Cette conférence accueillera également des spécialistes autour de tables rondes pour partager des regards croisés sur les enjeux appliqués contemporains.En outre, nous aurons le plaisir d’accueillir Simon Porcher, professeur à l’Université Paris Dauphine, pour présenter le travail autour de son livre « La fin de l’eau » sorti chez Fayard en 2024
Discuter de l'universalité de la transition écologique et sociale du Marketing
No full textInternational audienceThis paper explores the universality of the ecological and social transition in marketing by analysing its ideological underpinnings and implicit exclusions. It draws on an academic corpus and adopts a narrative approach to interrogate critical paradigms supporting this transition, such as Consumer Culture Theory (CCT) and Transformative Consumer Research (TCR). The study situates them within a global critique of Eurocentrism and explores their capacity to integrate perspectives from non-Western contexts. The expected results envisage a decolonisation of marketing theories through the tension between universality and pluriversality, to propose strategies adapted to diverse contexts and to renew approaches to sustainability and marketing research.Ce travail examine l’universalité de la transition écologique et sociale du marketing en analysant ses fondements idéologiques et ses exclusions implicites. Il s’appuie sur un corpus académique et adopte une approche narrative pour interroger des paradigmes critiques soutenant cette transition, tels que la Consumer Culture Theory (CCT) et la Transformative Consumer Research (TCR). L’étude les situe dans une critique globale de l’eurocentrisme, en explorant leur capacité à intégrer des perspectives provenant de contextes non occidentaux. Les résultats attendus envisagent une décolonisation des théories du marketing par la mise en tension entre l’universalité et la pluriversalité, afin de proposer des stratégies adaptées à des contextes diversifiés et de renouveler les approches de durabilité et de recherche en marketing
La transition climatique sur le territoire parisien Impacts financiers et bénéfices associés
No full textDoes the identity of leaders matter for education? Evidence from the first black governor in the US
No full textInternational audienceCan role models from the same group enhance educational outcomes of disadvantaged minority students? We analyze the election of Douglas Wilder in Virginia in 1989, who was the first Black American to serve as governor in the US. Results from a triple difference and an event-study approach demonstrate increased educational attainment among Black individuals in Virginia after the election. Using an original survey and secondary data, we provide suggestive evidence that a role model effect may be driving these results. Our findings thus suggest that increasing exposure to Black politicians in high-profile positions might contribute to narrowing the White-Black gap in education in the US
Signalling for electricity demand response: When is truth telling optimal?
No full textUtilities and transmission system operators (TSO) around the world implement demand response programs for reducing electricity consumption by sending information on the state of balance between supply demand to end-use consumers. We construct a Bayesian persuasion model to analyse such demand response programs. Using a simple model consisting of two time steps for contract signing and invoking, we analyse the relation between the pricing of electricity and the incentives of the TSO to garble information about the true state of the generation. We show that if the electricity is priced at its marginal cost of production, the TSO has no incentive to lie and always tells the truth. On the other hand, we provide conditions where overpricing of electricity leads the TSO to provide no information to the consumer
Mitigating climate vulnerability: the crop diversification effect
No full textCan adaptation strategies mitigate the impact of drought episodes on household food insecurity? Using longitudinal data on Malagasy rural households from 2011 to 2014 and a two-way fixed-effects model with an instrumental variable method to address endogeneity issues, this study demonstrates that crop diversification significantly reduces household food insecurity and provides mitigating benefits. Specifically, adding one additional crop reduces perceived food insecurity by 6%–8% and shortens the lean season by 20%–22% on average. Moreover, diversification helps alleviate the adverse effects of drought episodes, with cultivating 6 to 9 crops—particularly fruits and cereals—proving most effective. However, the effectiveness of diversification diminishes under severe drought conditions and varies across crop types
Teams in Time and Space: Capturing the Dynamic Nature of Team Process through a Bibliometric Investigation
No full textCapturing the dynamic nature of team processes remains a major challenge in current research. To shed light on this issue, we revisit the original theoretical foundations of team processes to trace their evolution through recent research streams. This approach enables us to highlight obstacles to understanding their dynamics, as well as emerging avenues to overcome these challenges. By combining a bibliometric approach with grounded theory, we map three classical schools of thought based on recurring co-citation clusters and analyze their transversal dimensions: temporality, multidimensionality, and the cognition–affect–behavior triad. We then examine the evolution of these dimensions through an analysis of bibliographic coupling in recent studies, identifying novel drivers such as diversity, leadership, and the impact of extreme circumstances that enrich our understanding of team processes. Finally, we highlight innovative cross-cutting methodological approaches that offer promising perspectives for future discoveries.Capturer la nature dynamique des processus d’équipe demeure à ce jour l’un des défis majeurs de la recherche. Pour éclairer cette question, nous revenons aux sources théoriques originelles des processus d’équipe, afin de retracer leur évolution à travers les courants de recherche récents. Cela nous permet de mettre en lumière les obstacles à la compréhension de leur dynamique, ainsi que les nouvelles pistes ouvertes pour les surmonter. En combinant une approche bibliométrique avec la théorie enracinée, nous cartographions trois écoles de pensée classiques à partir du regroupement des co-citations récurrentes, et analysons leurs axes transversaux : temporalité, multidimensionnalité, et triade cognition – affect – comportement. Nous explorons ensuite l’évolution de ces axes à travers l’analyse des couplages bibliographiques de recherches récentes, identifiant de nouveaux leviers comme la diversité, le leadership ou l’impact de circonstances extrêmes, qui enrichissent notre compréhension des processus d’équipe. Enfin, nous mettons en évidence de nouvelles approches méthodologiques transversales offrant des perspectives prometteuses pour de futures découvertes
Les stratégies face au mythe controversé : le cas Picasso
No full textIn the era of #MeToo, the list of scandals involving public figures such as actors and artists continues to grow. Whether living or deceased, they become the focus of controversies that not only challenge their cultural legacy but also jeopardize their economic value. As society increasingly rejects violence against women, do these artists witness the collapse of the myths associated with them? A case study of Picasso highlights the construction of twoantagonistic myths that coexist and clash while simultaneously sustaining each other through a strong religious dimension. Museums, by implementing strategies that modulate the balance of power between these myths, contribute to the perpetuation of this duality.A l’heure de MeToo, la liste des scandales autour de figures publiques comme les acteurs et les artistes ne cesse de s’allonger. Qu’ils soient vivants ou morts, ils font l’objet de controverses qui vient remettre en question leur patrimoine culturel mais également mettre en péril leur valeur économique. Si la société accepte de moins en moins les violences faites aux femmes, ces artistes voient-ils le mythe auquel ils sont associés s’effondrer ? Une étude du cas Picasso met en lumière la construction de deux mythes antagonistes qui coexistent et s’affrontent tout en se maintenant mutuellement grâce à une dimension religieuse forte. Les musées, en mettant en place des stratégies où le rapport de domination entre les mythes varie, participent au maintien de la dualité
