Recherche académique à emlyon business school
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Videography : Philosophical Underpinnings
No full textInternational audienceThis chapter introduces and critically reflects on the practice and potential of videography as a visual marketing and consumer research method. While videography – the process of production of research expressions with moving images – has been employed by scholars for decades, we argue only modest advances have been thus far made in leveraging the filmic medium, not to speak of injunctions of radical thinking and societal impact. In this essay, we also would like to examine the excitement a new technology and method readily brings about, noting that videography is always embedded in logics of commercial intensification. The contemporary algorithmic platform systems it typically inhabits and is shared in crucially shape – and necessarily limit – the space for videography’s emancipatory potential.<br/
Obstacles and levers to social mobilization : The history of co-determination in France and Germany
No full textInternational audienceThis article offers a comparative and historical study of the mobilizing factors (Davis and Thompson, 1994) influencing co-determination in France and Germany. In Germany, political opportunity, shared stakeholder interests, the presence of a social infrastructure, the dynamics of mobilization, and the presence of a supporting institution enabled co-determination to take hold (Gomez and Wirtz, 2018). These ingredients were not present in France, despite reflection on the nature of the enterprise justifying co-determination. We thus contribute to understanding the institutionalization of a political ideology and show how two countries that are relatively close politically can take different trajectories.Cet article propose une étude comparative et historique des facteurs de mobilisation (Davis et Thompson, 1994) autour de la codétermination en France et en Allemagne. L’opportunité politique, les intérêts partagés des acteurs, la présence d’une infrastructure sociale, la dynamique de la mobilisation et la présence d’une institution socle ont permis à la codétermination de s’imposer en Allemagne (Gomez et Wirtz, 2018). Ces ingrédients n’étaient pas présents en France malgré une réflexion originale sur la nature de l’entreprise justifiant la codétermination. Nous contribuons ainsi à la compréhension de l’institutionnalisation d’une idéologie politique et montrons comment deux pays relativement proches politiquement peuvent emprunter des trajectoires différentes.<br /
Family business and international business : Breaking silos and establishing a rigorous way forward
No full textInternational audienceOver the past decade, a consensus has crystallized recognizing the significance of family firm internationalization in international business (IB) research. This recognition comes with substantial opportunities, yet it also presents challenges, such as the pressing need for a more cohesive integration of the family business and IB domains. In this article, we (re)emphasize the relevance of family firm internationalization for IB research considering three IB grand challenges and two important aspects of internationalization where family firms can particularly contribute. We also propose several theoretical and methodological avenues for future studies to help further increase the understanding of family firm internationalization and of IB theories. Finally, we provide an overview of the core insights from the articles included in the related special issue and develop integrative conclusions about the research.<br/
Cracking a brick in the master's house : Counter practices as counter-accounts of difference and survival
No full textInternational audience"PurposeThis paper aims to examine how an alternative accounting system developed by a marginalised group of women enables them to counter oppressive systems built at the intersections of gender, class and race.Design/methodology/approachThe authors draw on diary notes taken over a period of 13 years in France and Senegal in the context of the first author's family interactions with a community of ten Black immigrant women. The paper relies on Black feminist perspectives, namely, Lorde's work on difference and survival to illuminate how this community of women uses the creative power of its “self-defined differences” to build its own accounting system – a tontine – and work towards its emancipation.FindingsThe authors find that to fight oppressive marginalising structures, the women develop a tontine, an autonomous, self-managed, women-made banking system providing them with cash and working on the basis of trust. This alternative accounting scheme endeavours to fulfil their “situated needs”: to build a home of their own in Senegal. The authors conceptualise the tontine as a “situated accounting” scheme built on the women's own terms, on the basis of sisterhood and opacity. This accounting system enables the women to work towards their “situated emancipation”, alleviating the burden of their marginalisation.Research limitations/implicationsThis paper gives visibility to vulnerable women's agentic capacities through accounting. As no single story captures the nuances and complexities of accounting, further exploration is encouraged.Originality/valueThis paper contributes to the counter-accounting literature that engages with vulnerable, “othered” populations, shedding light on the counter-practices of accounting within a community of ten Black precarious women. In so doing, this study problematises these counter-practices as intersectional and built on “survival skills”. The paper further outlines the emancipatory potential of alternative systems of accounting. It ends with some reflections on doing research through activist curiosity and the need to rethink academic research and knowledge in opposition to dominant epistemic standards of knowledge creation."<br/
Feature importance in the age of explainable AI : Case study of detecting fake news & misinformation via a multi-modal framework
No full textInternational audienceIn recent years, fake news has become a global phenomenon due to its explosive growth and ability to leverage multimedia content to manipulate user opinions. Fake news is created by manipulating images, text, audio, and videos, particularly on social media, and the proliferation of such disinformation can trigger detrimental societal effects. False forwarded messages can have a devastating impact on society, spreading propaganda, inciting violence, manipulating public opinion, and even influencing elections. A major shortcoming of existing fake news detection methods is their inability to simultaneously learn and extract features from two modalities and train models with shared representations of multimodal (textual and visual) information. Feature engineering is a critical task in the fake news detection model's machine learning (ML) development process. For ML models to be explainable and trusted, feature engineering should describe how many features used in the ML models contribute to making more accurate predictions. Feature engineering, which plays an important role in the development of an explainable AI system by shaping the features used in the ML models, is an interconnected concept with explainable AI as it affects the model's interpretability. In the research, we develop a fake news detector model in which we (1) identify several textual and visual features that are associated with fake or credible news; specifically, we extract features from article titles, contents, and, top images; (2) investigate the role of all multimodal features (content, emotions and manipulation-based) and combine the cumulative effects using the feature engineering that represent the behavior of fake news propagators; and (3) develop a model to detect disinformation on benchmark multimodal datasets consisting of text and images. We conduct experiments on several real-world multimodal fake news datasets, and our results show that on average, our model outperforms existing single-modality methods by large margins that do not use any feature optimization techniques.<br/
Entrepreneurial intention studies : A hybrid bibliometric method to identify new directions for theory and research
No full textInternational audience"Fragmentation is the main obstacle to scientific progress on entrepreneurial intention. To address this issue, we systematise the current literature with a hybrid bibliometric method that combines co-citation and bibliographic coupling analysis for the first time in entrepreneurial intention studies to show the field's knowledge base and research fronts and to examine how divergent perspectives have challenged the core knowledge of the field. We highlight three recurring dimensions of entrepreneurial intention studies: (1) personal factors, (2) social factors and (3) investigational settings. In addition to introducing new constructs, divergent perspectives have emphasised the interplay between these components and challenged the mechanisms connecting them. Based on these findings, we extend previous classifications in the literature by providing a framework that integrates divergent perspectives with the field's knowledge base, helping establish future research avenues and improving the theorising process of entrepreneurial intention."<br /
A decision support system based on an artificial multiple intelligence system for vegetable crop land allocation problem
No full textInternational audienceThis research focuses on the development of a novel artificial multiple intelligence system (AMIS), which is more flexible and effective than existing techniques for determining vegetable crop land allocation. Eight intelligence boxes (IBs) have been newly designed to serve as AMIS improvement tools presented in this study. Furthermore, a novel formula has been developed to efficiently select the appropriate IB for various types of problems. The developed method will be incorporated into a vegetable land allocation decision support system. The decision-making of the planning about land allocation for crops, including what to grow and what is in demand during specific periods, was performed while considering important factors such as production yield, crop planting and harvesting time, vegetable price fluctuations, and plant incompatibility, leading to a sustainable production system and achieving the highest prices and annual income. Moreover, the developed vegetable crop land allocation models yield the similarity of the average profit per area, so farmers could plan their crops accordingly. To solve the problem, a mathematical model was proposed to solve a small-sized problem, while a novel metaheuristic called the Artificial Multiple Intelligence System (AMIS) was applied to solve larger-sized problems. The computational results revealed that AMIS outperformed all other traditional methods used for comparison in this research. The solution of AMIS was higher in quality than traditional methods such as Differential Evolution (DE), Multi-Agent Simulated Quenching (MASQ), and Genetic Algorithm (GA) by 21.78, 16.38, and 22.79%, respectively.<br /
Dynamic decision making with predictive panels
No full textInternational audience"This paper studies the dynamics of realized accuracy obtained with predictive panel models. A decision maker is affected by a loss of accuracy from an estimated model with respect to out-of-sample data. We investigate the link between this loss of accuracy and changes in the distribution of the underlying data from the estimation phase (in-sample) to the out-of-sample tests. We then model the norms of distributional changes with positive autoregressive processes in order to predict the loss of accuracy. Based on two different financial datasets, our empirical results show that our indicators have a strong explanatory power over realized portfolio returns."<br/
Sold to China: Container traffic in the Port of Piraeus
No full textInternational audienceThis article analyzes the effects of the acquisition of the Port of Piraeus by the Chinese shipping operator COSCO in July 2016 on the organization of container traffic in Europe. Using real-time container ship positions provided by vessel tracking systems between 2015 and 2019, we study the impact of the privatization of the Greek port on its attractiveness and on that of competing ports for the ships of the various operators, and more particularly of COSCO. Difference-in-difference estimates suggest that the number of container ship calls to the Port of Piraeus has increased following its privatization, but that this increase in attractiveness corresponds mainly to vessels operated by COSCO with a capacity of more than 3000 twenty-foot equivalent units, and in particular to the largest of them. We do not identify any crowding out effect between operators in Piraeus: the use of Piraeus by the vessels of other operators remains relatively unchanged. The privatization of Piraeus seems to have imposed the Greek port as COSCO's transhipment hub for the European market without this being to the detriment of ports in any other particular European area
Coexistence Paradigm of The Technological Catching Up Process
No full textInternational audienceEstablished studies on catching up have mainly overlooked a comprehensive understanding of the process. We examine the Chinese auto parts manufacturing industry’s technological catch-up to derive conclusions about the development paradigm. We address this conundrum by employing a process-based case study to extend the theory of technological catching up. This leads us to call this alternative paradigm coexistence. Coexistence encompasses various interactions between new and old generations in the process of catching up. In our findings, we propose three coexistence scenarios, namely: convergent, asymptotic, and intersectional