Inventory decision for products with deterioration and expiration dates for pollution-based supply chain model in fuzzy environments

The proposed study addresses a two-echelon sustainable supply chain (SC) model with single-vendor and single-buyer by considering the detrimental impacts of environmental pollution due to production. Moreover, an estimation function measure production is developed through separate modelling. In entire chain, we assume deterioration rate increases time it also depends on product’s expiration date. On other hand, demand for deteriorating items at buyer’s end assumed be dense fuzzy number because learning effect. defining exact profit functions vendor, buyer solved classical method. These lead determination individual optimal policies, as well policy joint integrated chain. Fuzzifying final objective via rule, have employed extended ranking procedure its defuzzification. A comparative numerical illustration under centralized decentralized policies in both crisp environment has been studied validate model. Finally graphical illustrations sensitivity analysis made global justifications.