15h30 - 15h55
Supply Chain Coordination to Enhance Environmental Sustainability
Environmental sustainability is essential to the sustainable economic development. In a bid to curb pollution, governments impose penalties on the firms to emit pollutants. But such policy’s effectiveness is not strongly verified, in particular, in the real business world. We suggest a more market-driven approach, requiring coordination among the economic entities sharing the same supply chain. Consider a supply chain consisting of one manufacturer, one retailer, and consumers. We develop a differential game model, where the manufacturer emits CO2 while producing the products. Using the model, we compare cases such as when the consumers are sensitive to the pollution by incorporating it into their demand function and when the retailer synchronizes its demand for the manufacturer with the consumers’ demand for itself. We discuss managerial as well as economic implications of the analysis results.
15h55 - 16h20
Prise en compte du développement durable dans les modèles et méthodes de conception des réseaux logistiques : un état de l'art
Cet état de l'art porte sur 65 articles intégrant des facteurs environnementaux ou sociétaux dans les modèles de conception de réseau logistiques. Nous classifions ces articles selon les modèles mathématiques, les approches de résolution et les domaines d'application. Nous concluons par l'exposé de pistes de recherches prometteuses.
16h20 - 16h45
Implications of Environmental Mechanisms in a Closed-Loop Inventory Model
We study a recovery inventory problem subject to a cap-and-trade scheme. The problem is formulated as a stochastic dynamic model, and is solved by a genetic algorithm. Through numerical examples, we characterize the potential impact of the environmental strategy and parameter values on replenishment decisions, environmental performance and operational costs.
16h45 - 17h10
The Impact of Double Marginalization on the Evolution of Pollution in a Simple Supply Chain
This paper seeks to assess the impact of decentralized decision-making in a simple supply chain composed of one manufacturer and one retailer on the evolution of pollution. This vertical impact, which is yet uncovered in the literature on pollution control, should differ both in nature and magnitude from the horizontal impact of decentralized decision-making, which consists in an improper internalization of the social costs of pollution.