An economic order quantity model under partial trade credit linked to order quantity for deteriorating items

This paper proposes a model، which aims to analyze the partial trade credit financing in a supply chain by economic order quantity-based model for deteriorating items. If the order quantity is more than a specified quantity fully permissible delayed payment is possible، otherwise partial trade credit is offered. Selling and purchasing costs are not equal and interest charged in stocks is not necessarily greater than interest earned on investment. In order determine the unique and optimum solution several lemmas and theorems are defined. Finally to show validity of the proposed model and applicability of developed algorithm، experimental results are provided.