Abstract: This paper considers the joint decision on timing and pricing for ordering in a supply chain consisting of one manufacturer and one retailer with continuous information updating on retailer's side.The manufacturer offers a menu with multiple choices on timing and pricing for ordering.Before selling season starts,according to the menu,the retailer decides when to place an order and enjoys the corresponding price.We consider timing for ordering as decision variable with respect to its effects on the degree of information updating,which extends the existing literature by removing the constraint of fixed ordering time.We study each entity's profit under both centralized and decent ralized systems.In the decentralized system,we incorpo rate revenue sharing contract to find Pareto improvement.Numerical examples are also provided to illust rate the effectiveness of our coordinating mechanism.

Key words: supply chain coordination, Stackelberg Game, information updating, Pareto improvement