Paper Title
Supply Chain Model for Three-echelon Supply Chain for Deteriorating Items

Abstract
This study considers three echelon supply chain. After production, the manufacturer supplies the deteriorating products to the supplier, and then the retailer receives the product from the supplier for sale to the customers. The retailer considers the customer’s seasonal pattern demand and supplier’s uncertain lead time. In this model, the product expiration date is also considered. The model helps the complete supply stakeholders to optimize their profits by managing optimal inventory.