TY  - JOUR
T1  - Extended the EPQ Inventory Model under Permissible Delay in Payments
AU - , Chih-Sung Lai AU - , Yung-Fu Huang AU - , Hung-Fu Huang 
JO  - Journal of Engineering and Applied Sciences
VL  - 2
IS  - 1
SP  - 149
EP  - 156
PY  - 2007
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2007.149.156
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2007.149.156
KW  - EPQ
KW  -EOQ
KW  -permissible delay in payments
KW  -trade credit
KW  -inventory
AB  - The main purpose of this study is to investigate the case where the retailer`s unit selling price and the purchasing price per unit are not necessarily equal within the EPQ framework. Under these conditions, we establish the retailer`s inventory system as a cost minimization problem to determine the retailer`s optimal inventory cycle time and optimal order quantity. Three easy-to-use theorems are developed to efficiently determine  the  optimal inventory policy for the retailer. Some previously published results of other researchers are  deduced  as  special cases. Finally, numerical examples are given to illustrate these theorems obtained in this study.
ER  -