Johari, Maryam; Hosseini-Motlagh, Seyyed-Mahdi Coordination contract for a competitive pharmaceutical supply chain considering corporate social responsibility and pricing decisions. (English) Zbl 1464.90006 RAIRO, Oper. Res. 54, No. 5, 1515-1535 (2020). Summary: Corporate social responsibility (CSR) and pricing decisions are proposed for a competitive two-level pharmaceutical supply chain (PSC) comprising two pharma-manufacturers and one pharma-retailer. In the investigated PSC, the pharma-manufacturers competitively invest in the CSR effort to produce a new medicine and sell two substitutable products to the market through the pharma-retailer, deciding on selling prices of manufacturers’ products. The PSC under consideration is modeled in three decision-making structures, i.e., decentralized, centralized, and coordinated models. In the decentralized model, the pricing and CSR decisions are individually obtained using a pharma-manufacturers-Stackelberg game structure. In the centralized model as a benchmark, the best performance of the entire PSC system is achieved. Finally, to encourage all PSC members to agree on the coordination plan, a CSR cost-sharing contract is proposed. Our results reveal that under competitive environment, the proposed CSR cost-sharing contract is able to increase market demand by significantly decreasing selling prices and increasing level of the CSR efforts. MSC: 90B05 Inventory, storage, reservoirs 91B24 Microeconomic theory (price theory and economic markets) 91A12 Cooperative games Keywords:pharmaceutical supply chain coordination; corporate social responsibility (CSR); pricing; Stackelberg game; substitutable products; CSR cost-sharing contract PDFBibTeX XMLCite \textit{M. Johari} and \textit{S.-M. Hosseini-Motlagh}, RAIRO, Oper. Res. 54, No. 5, 1515--1535 (2020; Zbl 1464.90006) Full Text: DOI References: This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.