Mostafa Zandieh - Department of Industrial Management, Shahid Beheshti University
Vahid Kayvanfar - Department of Industrial Engineering,Mazandaran University of Science and Technology

In this paper, we study economic lot scheduling problem (ELSP) in production environments with slack costs and deteriorating items using the extended basic period approach under Power-of-Two (PoT) policy. Our goal in this research is determining an optimal batch size for a product and minimizing total related costs to such a problem. The ELSP is concerned with the scheduling decision of n items and lot sizing. Also PoT policy ensures that the replenishment cycle of each item to be integer.

Economic lot scheduling problem, Deterioration, Imperialist competitive algorithm