The pricing of the high-tech products,which are the typical perishable ones,is a decisive effect on the profit of the retailers'.After considering customer' s substitutable behavior under out of inventory,in or- der to gain maximum expected profit,the retailer' s pricing policy for two perishable commodities are discussed with stochastic demand based on multi-logit consumer choice model and service level with revenue manage- ment.The model which applies single stage are numerically analyzed.Opti...