Collection HAL Kedge Business School
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Repenser l’expérience de la dialyse à domicile par le co-design : de l'enquête collective à la création de dispositifs de médiation pour les ateliers participatifs
No full textInternational audienceCette communication porte sur une recherche interdisciplinaire sur les technologies en santé, pour améliorer l’expérience de la dialyse à domicile et la communication entre patients, aidants et soignants (PAS). Nous préciserons d’abord le besoin de recherche sur cette pathologie et la nécessité de prendre en compte l’expérience-patient à partir de méthodes visuelles, créatives et narratives pour la rendre compréhensible et partageable. Nous expliquerons ensuite la co-construction du kit d’enquête basé sur la communication épistolaire et la photographie, élaboré avec les patients en contexte de pandémie. Ce dispositif d’enquête visait à créer un lien affectif pour soutenir l'engagement des patients tout en favorisant leur expression sur leur vie quotidienne avec la maladie rénale, les acteurs qui les accompagnent ou encore leurs technologies de soin.À partir d’une méthodologie ancrée dans le design et la communication, et en nous appuyant sur une approche de co-design et d’ethnographie par le design, nous présenterons les différents outils d’enquête co-créés avec les patients. Nous analyserons aussi le processus de transformation des outils d’enquête en dispositif de médiation pour le premier atelier, pour faire le lien entre la recherche et la conception. Les résultats présentés porteront sur la méthodologie participative et les technologies mobilisées sur le terrain, en valorisant la démarche de créativité low-tech suscitée par le terrain
Overreaction and momentum in the Vietnamese stock market
No full textInternational audiencePurpose Although the solid empirical proof of momentum is documented in various stock markets, there are many debates among academics with respect to the source of momentum profit. The first aim of this paper is intensively re-examine the momentum profit in Vietnam, an important emerging market. Secondly, the authors study the return predictability of a measure of investors’ overreaction, then examine whether the momentum effect in Vietnam is explained by overreaction. Design/methodology/approach Using the weekly data of more than 300 non-financial Vietnamese stocks during 2009–2019, the authors build a measure of investors’ overreaction, which is based on trading volume and the sign of stock returns. Consequently, to investigate whether momentum exits after controlling for overreaction, the authors carefully compare trading strategies based on overreaction with price momentum strategies using adjusted returns and double sorts on past returns and levels of overreaction. Findings The article makes three main findings. Firstly, the authors discover the empirical evidence of momentum in the Vietnamese equity market. Secondly, the measure of overreaction could be a predictor of Vietnamese stock returns. Stocks that have experienced a stronger upward overreaction provide a higher average return. Finally, returns on trading strategies based on overreaction are robust after adjusting for momentum, while returns on momentum portfolios become insignificant after adjusting for overreaction. By double-sorting, the authors document that holding past returns constant, the average returns of portfolios rise monotonically with their measure of overreaction. Hence, the momentum profit in Vietnam arises from investors’ overreaction. Originality/value The paper extends previous research on the behavioral explanation of momentum in emerging stock markets, which has not been fully exploited in the literature
Logistics Distribution Optimization: Fuzzy Clustering Analysis of E-Commerce Customers’ Demands
No full textInternational audienceE-commerce customers’ demands for delivery services have become more personalized, diversified, and complex. In this paper, we conduct cluster analysis on the customer demand attributes resulting in a list of attributes including quantitative and qualitative expectations that can be relevant for creating efficient distribution routes taking into account the delivery time and customer satisfaction. A fuzzy clustering optimization method is elaborated for the treatment of above-mentioned customer attributes for distribution management in order to generate efficient delivery strategies. A case study from Shun-Feng (SF) International Express is used to demonstrate the effectiveness and practicability of the proposed method. The obtained results show that both customer satisfaction and the net profit of the enterprise have considerably increased due to an efficient distribution management
Green Veblen effect: Sustainability in pollution management
No full textInternational audienceWe know that green products may initially exhibit a Veblen effect–demand increasing with prices–often followed by a decrease in price. The global understanding of these joint phenomena still needs to be improved, impeding appropriate profit-maximizing policies. Our article fills the gap by tying sustainable dynamic policies to pollution management with green consumers. This article develops an optimal control framework for production and pollution abatement, accounting for both the demand-side, with green consumption, and the supply-side, with polluting production. Results investigate the conditions characterizing the initial green Veblen phenomenon and show how to manage a green Veblen product over time. Our results pave the way to more profitable strategies accounting for sustainability
Does corporate social responsibility pay? Evidence from social ratings in microfinance institutions
No full textInternational audienceDoes it pay for microfinance institutions (MFIs) to be socially responsible? Drawing on the information asymmetry framework and using an aggregate measure of social performance (social ratings), we investigate theassociation between MFI corporate social performance (CSP) and capital structure. Our findings suggest thatamong investors, a relationship between social performance and capital structure only emerges when consideringsubsidies. We also investigate the effects of profit orientation by analyzing whether the financial structure of forprofit (vs nonprofit) MFIs is sensitive to social ratings. Our findings highlight the importance of social performance as a major determinant of MFI capital structure
Taking stock of responsible management education in Central and Eastern Europe
No full textInternational audienceCorporate social responsibility, business ethics and sustainability – often bracketed under responsible management education (RME) – are topics that are increasingly adopted by universities and business schools across the globe. However, one region where our knowledge regarding the extent of RME is still limited is Central and Eastern Europe (CEE). Bringing together a team of scholars (currently or formerly) based throughout the region, we were able to conduct the largest survey to date of RME practices in the CEE region, covering 13 countries. Our findings suggest that, at a declarative level, RME is very much present at CEE universities and business schools, in particular in terms of teaching. However, a pro-RME rhetoric is not necessarily backed-up with substance; in particular, a lack of financial resources was identified as the major barrier to greater engagement with RME practices. We also observed a gap between commitment to RME in teaching versus in research, which could be a potential source of concern as teaching should be informed by research; otherwise faculty remain dependent on imported teaching materials. We contribute to strengthening the RME agenda in management education by discussing the implications of our findings for individual faculty, business school leaders, governments and international associations of management education
Corporate social responsibility as management idea: Between universal applicability and context dependency
No full textInternational audienceThe international spread of the concept of corporate social responsibility (CSR) has ignited a debate whether CSR is universally applicable or context dependent. To shed new light on this question, I propose to treat CSR as a management idea that consists of nested levels of abstraction, namely relatively abstract ‘management rhetorics’, within which more prescriptive ‘management models’ reside, which contain concrete ‘management techniques’. I then analyse the global diffusion of one CSR management technique, a CSR guidance document by UK-based business association Business in the Community (BITC), which suggests that companies could address CSR as four material areas: Workplace, Environment, Marketplace and Community. Following its life-cycle through the innovation, diffusion, institutionalization, dormancy and rebirth stages allows me to identify forms of horizontal diffusion, that is, diffusion among peers within a particular sector or country, and vertical diffusion, that is, between organizations that stand in a hierarchical relationship to each other. At each stage of the life-cycle, the success of the management technique seems to be aided by factors that treat the management technique as universally applicable. In themselves, all of these claims to universal applicability are easily countered by a more critical reading of the argumentation; yet, it is the way in which the nested levels influence each other, that is, the management technique feeding into management models and management rhetorics, that tends to give the notion of universal applicability of CSR its persuasiveness
Trust and opportunism as paradoxical tension: Implications for achieving sustainability in buyer-supplier relationships
No full textInternational audienceWhile trust and opportunism were traditionally considered as the opposite ends of a continuum, when considered through the lens of paradox theory, these two could not only coexist, but also have a complementary effect on the achievement of sustainability in buyer-supplier relationships. To examine the combined effects of trust and opportunism, we apply a polynomial regression analysis and the response surface approach using survey data collected from 259 German firms. We find that the trust-opportunism paradox has different impacts on sustainability collaboration and evaluation. Sustainability collaboration thrives under high levels of trust and low levels of opportunism; here, firms can apply a resolution strategy to deal with the paradoxical tension. For sustainability evaluation, trust and opportunism jointly increase sustainability evaluation initially and then it decreases; in this case, a paradox acceptance strategy would be more appropriate. We also find these effects to differ between younger and mature relationships. In younger relationships equal levels of trust and opportunism result in the highest levels of sustainability collaboration. In mature relationships, the shadows of the past and the future seem to provide sufficient assurance to the buyer that sustainability collaboration can be sustained even in the presence of minor acts of opportunism