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“We made a mistake” : How top executives dialectically narrate strategic errors in situations of strategic change
No full textInternational audienceBased on 21 in-depth interviews with chief executive officers (CEOs) and board chairs leading 900,000 people in large financial firms in Europe, this study surfaces the acknowledgment of strategic errors in top executives’ narratives as a broad theme associated with strategy change. This theme is intriguing because errors are typically associated with negative connotations undermining leaders’ self-image and credibility. More specifically, this study identifies in top executives’ error narratives a dialectic process consisting of mobilizing errors and de(if)fusing errors or distancing themselves from them; the paper models seven narrative practices within the process. As a first contribution to narrative research on strategy and change, this study introduces strategic errors as a narrative trigger in top executives’ retrospective accounts of strategy change, frequently associated with the plausible economic failure of their firms. Second, while extant research generally focuses on the coherence of individual narratives, this study adds on the relatively rare studies recognizing a dialectic in individual narratives on change.<br /
Risk profiling of food security impediments using decision maker’s behavioural preference towards operational risk management
No full textInternational audienceFor different decision makers, their approach towards management of operational risks differs due to difference in background and behavioural preferences. For such reasons, they attach different importance to various perspectives to manage operational risks. Present study conducts and analyses risk profiling of food security impediments, in which operational risk has come up as an important impediment. Based on three perspectives namely, social, economic, and operational, the research first evaluates severity of impediments in food security. Risk profiling is then conducted on the basis of decision makers’ preferences towards different perspectives. Integration of fuzzy set theory and evidential reasoning algorithm along with decision makers’ behavioural preferences have been used for the analysis. The proposed model generates a continuum of scenarios towards relative importance of three perspectives. It is observed that despite changing the importance of perspectives, a few risks show robustness in their severity, while other ones are sensitive to small changes. Based on these dynamic changes in risk-percept, insightful risk profiling is presented in this research. The risk profiling approach uniquely helps decision makers to adequately plan their course of actions to deal with operational risks associated with food security.<br /
EE275 Economic Evaluation of Adjuvant Chemotherapy for Soft Tissue Sarcoma Using Linked NETSARC+ (French Registry) and SNDS (French National Health Data System) Real World Data: The Deepsarc Study
No full textInternational audienc
Faire cinéma, faire collectif
No full textInternational audienceLe dossier thématique de ce nouveau numéro, coordonné par Marie Pierre-Bouthier et Salima Tenfiche, n’est pas tout à fait ordinaire. Son objet, le cinéma, a nécessité un pas de côté – ou plutôt une certaine souplesse vis-à-vis de la ligne éditoriale de la revue, ancrée dans les sciences sociales – pour accueillir une diversité de contributions, dont certaines s’inscrivent davantage dans des approches esthétiques. L’ouverture revendiquée de ce numéro dépasse les seuls choix disciplinaires ou méthodologiques : elle se traduit aussi par la variété des formats et dans la pluralité des parcours des auteurs et autrices. Aux articles de recherche s’ajoutent, en effet, deux entretiens avec des réalisateurs, ainsi qu’un texte rédigé par une curatrice.<br/
Designing profit-maximizing omnichannel distribution networks for high responsiveness
No full textInternational audienceThe network posture of omnichannel retailers, encompassing dedicated urban fulfillment centers (UFCs) and/or selected stores (omnistores) for order fulfillment, directly influences their ability to provide responsive delivery services. In turn, customers’ willingness to purchase online is shaped by the responsiveness level offered, impacting overall sales revenue. To address this business context, we introduce a responsive omnichannel distribution network design problem under a probabilistic, offer-dependent customer channel choice framework. At the strategic level, our approach optimizes the selection of delivery service offers by demand zone while jointly determining the number and location of UFCs and omnistores. We formulate a two-stage stochastic distribution network design model that maximizes expected profit. Demand scenarios are derived from a discrete choice model that captures customer preferences between online and offline channels, contingent on the retailer’s responsiveness level. To account for last-mile delivery complexities, we employ a refined pixelization of urban delivery areas and develop a precise calculation of Order-to-Delivery Time (ODT). Managerial insights from a case study of an omnichannel retailer in France highlight the advantages of deploying UFCs and omnistores, yielding up to an 8% profit increase under high responsiveness. Our results demonstrate the effectiveness of the proposed model in capturing customer willingness to buy online, with network offerings shifting to next-day delivery in up to 60% of demand zones.<br /
Strategic capacity investment with common ownership
No full textInternational audienceWe study how common ownership affects the magnitude and dynamics of investments in a duopoly. Followers exhibit less aggressive timing and quantity reactions because they internalize their effects on leaders. Leaders are therefore more likely to opt for a deterrence strategy, but their own internalization of followers softens their decisions. If firm roles are exogenous, high common ownership links lead to a relatively efficient staged investment outcome. Conversely, if firm roles are endogenous, high common ownership drives the winner of the preemption race to concede a “follower monopoly.” Our numerical analysis finds that common ownership is generally detrimental to consumer surplus and welfare.<br /
Exploring the interaction between television and branded search advertising : Implications for real-time syncing strategies
No full textInternational audienceAlthough the adoption of real-time syncing services—that is, services that synchronize online and television ads—is rising, there is still limited evidence about their effectiveness. We address this gap by examining the impact of coordinating branded search engine and television ads for a small direct-to-consumer company. We conducted a field experiment during a national television advertising campaign, randomly enabling and pausing the company’s branded text (text-based links triggered by the brand name) and shopping ads (visual product listing ads) across different geographic regions. The results show that television ads generate more website visits when text ads and both text and shopping ads are enabled compared to when search ads are paused. We also find that television ads alone decrease the conversion rate, but enabling shopping ads attenuates this decrease. The results demonstrate that search and television ads interact, which is a necessary condition for a real-time syncing strategy to increase revenues. Because the interactions occur at different stages of the path to purchase, we run a revenue analysis to assess the implications for real-time syncing. The analysis indicates that a real-time syncing strategy would have likely increased the focal company’s revenue compared with strategies that do not coordinate search and television ads.<br /
"Coinvestment games under uncertainty"
No full textNational audienceThere are many business situations in which investments by a supplier and a producer (“coinvest-ments") are both necessary for either of them to grasp a business opportunity. For instance, better quality tanks are needed to manufacture reliable hydrogen-powered vehicles. One of these two firms, typically the one facing a lower cost, may be more willing to invest, but the cautionary attitude of the other delays the coinvestment. We model supply-chain interactions in a classical tractable way to derive the firms’ net present values (NPVs) upon coinvestment and determine their Nash equilibrium investment (timing) strategies. Firms coinvest when the real options of the weaker firm is ‘deep in the money.’ These business situations are likely to be affected by evolving market circumstances, in particular due to changes in the demand dynamics or endogenous decision (by, say, the supplier) to conduct research and development (R&D). We investigate related model extensions, which confirm the robustness of our key result
Efficiency of the Minimum Approval Mechanism with heterogeneous players
No full textThe Minimum Approval Mechanism (MAM) was introduced by Masuda et al.(2014) as a mechanism aimed at mitigating free riding in the social dilemma context of a public good game. The MAM is a two-stage mechanism which theoretically achieves the socially optimum level of public good provision, according to various equilibrium concepts (e.g., backward elimination of weakly dominated strategies, level-k, or minimax regret). We study the robustness of this mechanism to the introduction of endowment heterogeneity. We explore, theoretically and experimentally, how endowment inequalities affect the effectiveness of the MAM at improving the level of provision. We find that the mechanism is still Pareto-improving under endowment heterogeneity, but that its efficiency diminishes as inequality is increased. Our experimental findings indicate a significant weakening of the mechanism under endowment inequalities, surpassing our theoretical predictions. A close examination of individual behaviors reveals a significant drop in contributions compared to the uniform case, prompted by even minor inequalities. Intriguingly, our findings challenge conventional assumptions by showing that inequality aversion drives contributions in a public good game with endowment disparities only under certain assumptions. We explore the impact of beliefs about the contributions of advantaged player as potential motivations through guilt aversion and Kantian preferences.</p
