%0 Journal Article %T Computing nonstationary (s, S) inventory policies via genetic algorithm %A Kannapha Amaruchkul %A Surapong Auwatanamongkol %J Songklanakarin Journal of Science and Technology %D 2013 %I Songkla University %X A periodic-review inventory model with nonstationary stochastic demand under an (s, S) policy is considered.We apply a genetic algorithm to solve for reorder points and order-up-to levels which minimize an expected total cost.A closed-form exact expression for the expected cost is obtained from a nonstationary discrete-time Markov chain. In ournumerical experiments, our approach performs very well. %K stochastic model applications %K genetic algorithm %K nonstationary inventory management %U do.psu.ac.th/sjstweb/journal/35-1/35-1-115-121.pdf