Reducing carbon emissions plays a significant role in developing sustainable inventory systems. In seller-buyer relationship, an allowable delay payment is considered for the buyer to manage stock and simulate demand. Deteriorating items that usually have specific maximum lifetimes become challenge most firms. Contrary importance of these issues, very little research has studied impact on deter...

In practices, the supplier may simultaneously offer the customer: (1) a permissible delay in payments to attract new customers and increase sales, and (2) a cash discount to motivate faster payment and reduce credit expenses. Since all cash outflows related to inventory control that occur at different points of time have different values, we use the discount cash-flow (or DCF) approach to esta...

In most of the classical inventory models the demand is considered as constant. In this paper the model has been framed to study the items whose demand and deterioration both are constant. The authors developed a model to determine an optimal order quantity by using calculus technique of maxima and minima. Thus, it helps a retailer to decide its optimal ordering quantity under the constraints o...

in the supplier selection problem considering both parties benefits including the buyer and the supplier, is one of the key factors to enhance the supply chain management performance as well as sustaining a long term relationship with the suppliers. in fact, the integrated supplier selection models have been discussed in order to confirm the aforementioned subject. in this research, an integrat...

background informal payments for health care, which are common in many countries, can have negative effects on health care access, equity and health status as they lead people to forgo or delay seeking care, or to sell assets to pay for care. many countries are putting reforms in place with the aim of reducing informal payments. in order to be successful, such policies should be informed by the...

Background Informal payments for health care, which are common in many countries, can have negative effects on health care access, equity and health status as they lead people to forgo or delay seeking care, or to sell assets to pay for care. Many countries are putting reforms in place with the aim of reducing informal payments. In order to be successful, such policies should be informed by the...

the traditional economic production quantity (epq) model assumes that during the production process no imperfect item is produced. but 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 the total production-inventory costs can be reduced by reworking the imperfect quality items produced...