Abstract: One supplier and M retailers compose a two-stage supply chain for perishable goods.In this system,the sales period of perishable goods is divided into two periods.Before the first period,retailers order perishable goods from the supplier directly,at the end of the first period,the retailers trade their inventories via E-marketplace according to the demand.This paper investigates the impact on the supplier of this trade mode,and compares with the traditional mode,points out the impact depends on the peculiarity of perishable goods and specialty of the customers.Experimental study proves the results too.

Key words: E-marketplace, perishable goods, supply chain, Stackelberg model, Newsboy model