Sustainable inventory model with environmental impact for non-instantaneous deteriorating items with composite demand

Global warming and climate change become a sensitive issue worldwide, many countries try to control the CO 2 emissions by investigating in projects. This study proposes sustainable inventory model reduce carbon emission. It is generally assumed that demand increasing at starting of an level decreasing ending for particular newly launched product. In this situation, usually represented Normal distribution or imprecise fuzzy demand. However, reality, those assumptions do not always hold. most models, it seen linearly function time before deterioration; then, decreases inversely proportional deterioration rate after deterioration. To describe possible situations more clearly, we introduce here new type demand, called as composite Most products have fixed life span maintaining quality original condition which known non-instantaneous Therefore, design deteriorating items with function. The follow exponential distribution; holding cost considered dependent. formulated based on retailer’s perspective and, thereafter, total retailer calculated. Numerical examples are provided better understanding model. results show profit higher than instantaneously items. A sensitivity analysis conducted important parameters. Finally, paper ends conclusions outlook future research.