The traditional economic production quantity (EPQ) model assumes that the production products are all perfect. It is not always true in the real production system, due to imperfect production process or other factors, imperfect quality items may be produced. Furthermore, it is well-known that...

Trade credit financing is increasingly recognized as an important strategy to increase profitability in Inventory Management. We revisit an economic order quantity model under conditionally permissible delay in payments, in which the supplier offers the retailer a fully permissible delay of M...