Abstract: This paper deals with a kind of specific retailing that sells a fixed stock of perishable goods over a finite horizon.A Cournot game model is proposed based on Gallego and Van Ryzin's two-price policy.The Cournot equilibrium point is found out in the figure of the strategy sets.It is found that the optimal markdown timing of the leading product will be delayed and that of the following product will be advanced.A numerical example is provided and the effect of the customer's transfer probability p between suppliers on the equilibrium of the game is analyzed.The model proposed in this paper is helpful for the suppliers to determine the markdown timing of perishable products when the competitiveness exists.

Key words: perishable product, revenue management, dynamic pricing, game