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Innovation et Comptabilité, Contrôle, Audit : une dynamique réciproque de transformation
No full textInternational audienc
A bilevel framework for environmental and economic optimisation of hydrogen supply chains
No full textInternational audienceHydrogen is an energy carrier with the potential to decarbonise a portion of the transportation sector. To achieve this, there is a need to deploy a whole supply chain to produce, transport, store, and distribute this low-carbon fuel. Although hydrogen can be low-carbon if produced via the electrolysis of renewable electricity, most of its current production relies on fossil resources such as natural gas. It is thus crucial to develop a hydrogen supply chain that combines the reduction of greenhouse gas emissions to decarbonise mobility with the optimization of economic objectives. Most of the frameworks that model the hydrogen supply chain (HSC) with associated greenhouse emissions use a multi-objective approach to account for it. The whole supply chain is considered as a single actor with the goal of minimising both the total cost and the greenhouse gas (GHG) emissions of the HSC. This paper proposes a new approach involving two stakeholders with competing objectives. The problem is modelled as mixed-integer bilevel programming problem (MIBLPP) including a decision-maker with the aim to minimise GHG emissions as the upper level (UL) and the minimisation of the total cost of the HSC at the lower level (LL). The UL can choose technologies to subsidise in order to support the greenest solutions, while the LL will design the most cost-effective HSC to fulfil the demand based on the availability of technologies and energy sources
Unveiling the Collective Dynamics: A Case Study on Science-Industry Collaborations through CNRS Joint Labs
No full textInternational audienceWhile the benefits of university-industry collaborations are documented in the literature, the means of achieving efficient collaborations for both scientists and industry are still a matter of debate. Such associations exist and have been documented at individual, project and institutional levels. It is envisaged that, in these relationships, each stakeholder - industrialist and scientist - manages to mobilize the partner's resources in the service of its own cause. Through 30 interviews with 11 joint laboratories, a partnership research tool that structures the relationship through a laboratory format, our study aims to identify these exchange mechanisms at the service of the renewal of scientific and industrial issues. We show how this laboratory format, piloted by a public research organization, is an interesting tool for accumulating resources that will multiply the impact of the partnership relationship, for both parties
Forward contracting and the endogenous activity of heterogeneous firms
No full textInternational audienceAbstract Forward contracting in an ‐firm quantity‐setting oligopoly with heterogeneous costs introduces the possibility that relatively efficient firms deter the activity of inefficient rivals by reducing their margins. The equilibrium number of firms producing positive quantities can be any of depending on the level of demand relative to firm‐specific activity thresholds, with more firms active at higher demand levels. If only one firm is active, the Bertrand outcome is obtained. This potential reduction of the number of active firms may lessen the procompetitive effect of forward sales, but does not eliminate it entirely. We explore the competition policy implications of the endogenous activity of firms, in particular for merger analysis
The impact of green public finance and green taxes on environmental and non-environmental innovation
No full textInternational audienceThis article investigates the impact of green public finance and green taxes on total, environmental, and non-environmental innovation in developed economies from 1994 to 2019. The findings reveal that in the short run, these variables do not significantly influence any of the three types of innovation. However, over the long run, green taxes are found to enhance both environmental and non-environmental innovation, whereas green public finance only promotes environmental innovation. Additionally, the Granger non-causality test indicates that past values of green taxes can predict future values across all three categories of innovation. The policy implications of this research are significant: increasing allocations toward green public finance and implementing green taxes can accelerate the development of various technologies, thereby contributing to the achievement of carbon neutrality in developed economies. Nonetheless, policymakers should justify the adoption of these measures by focusing on their positive long-term impacts on innovation
DOES TRANSFORMATIONAL LEADERSHIP PROMOTE EMPLOYEE VOICE? TESTING THE MEDIATING EFFECT OF PSYCHOLOGICAL EMPOWERMENT AND MODERATING EFFECT OF LEADER-LEADER EXCHANGE
No full textInternational audienceIn the current paper we have studied the impact of transformational leaders' empowering behaviours on their followers' willingness to express their opinions and ideas. Specifically, we hypothesized that the relationship between transformational leadership and employee voice is mediated by psychological empowerment and moderated by leader-leader exchange. In order to test this moderated-mediation model, we collected data from 253 respondents working in public and private sector organizations in Kingdom of Saudi Arabia. We analysed our study data through SEM and PROCESS. Our study results confirmed that leader-leader exchange moderated the positive relationship between transformational leadership and psychological empowerment. Moreover, we found that the relationship between transformational leadership was fully mediated by psychological empowerment. Our paper underlines the importance of transformational leader’s upward relationship with their superiors on their subordinate’s psychological empowerment and subsequent voice behavior. Finaly, theoretical and managerial implication are discussed
Me, my work and AI: How radiologists craft their work and identity
No full textInternational audienceThis study investigates the introduction of AI in the field of radiology through a multi-level analysis (individuals, organization, and profession). Drawing on in-depth interviews with 54 participants (radiologists, radiological technologists, managers, hospital directors, and engineers), we examined how radiologists perceive AI and respond through job crafting behaviors and identity work. The findings reveal three categories of job crafting: approach, avoidance, and an emerging category of identity crafting, in which actors develop strategies to redefine their identity after the introduction of AI. This study contributes to a better understanding of AI and its implications for individuals at work and, in particular, employees' use of proactive approaches to job design, along with how such approaches are shaped by organizations and professional bodies
Entrepreneurial support organizations in sustainable knowledge-driven ecosystems
No full textInternational audienceDespite the growing focus on socioenvironmental issues within the study of entrepreneurial ecosystems, the role of entrepreneurial support organizations in this context remains unclear. Specifically, entrepreneurial support organizations play a crucial role in fostering entrepreneurship, yet limited research exists on how they contribute to the governance of socioenvironmental issues. This study aims to enhance our understanding of the role of entrepreneurial support organizations in knowledge-driven ecosystems by employing the Quadruple/Quintuple helix model to better capture how such organizations foster sustainable development start-ups. This model provides a comprehensive conceptual model for addressing entrepreneurial ecosystem socioenvironmental issues at the meso-level. Moreover, it facilitates the examination of knowledge spillovers between entrepreneurial support organizations and other entrepreneurial ecosystem actors by highlighting the existing knowledge filters in entrepreneurial ecosystem governance. Through an exploratory qualitative study that follows Gioia’s method, we identify three aggregate dimensions that explain how entrepreneurial support organizations address socioenvironmental issues by supporting sustainable development start-ups in knowledge-driven ecosystems. Our findings reveal how entrepreneurial support organizations enhance knowledge spillovers by relying on democracy-based knowledge in Mode 3 knowledge production. More precisely, our theoretical contribution to the entrepreneurial ecosystem literature highlights that policy makers orient the nature and outcomes of sustainable development start-ups to address socioenvironmental issues in knowledge-driven entrepreneurial ecosystems through knowledge filters. Ultimately, our research provides insights for policymakers and entrepreneurial support organization managers by enabling them to effectively steer entrepreneurial dynamics toward more sustainable development by comprehending the knowledge spillovers and filters inherent in knowledge-driven entrepreneurial ecosystems
