Abstract: Considering the mismatch between the orders and actual deliveries due to information asymmetry, a capacity sharing supply chain consisting of a capacity buyer, a capacity seller and a third-party order processing supervisor is built, and the impacts of “excess-shortage transaction” and “order processing” services on the capacity delivery rate improvement are investigated. Considering the capacity seller's decision whether to choose the excess-shortage transaction and the capacity buyer's decision whether to accept the order processing service, the dominant strategies of capacity buyer and seller and the equilibrium strategy combinations of both sides are analyzed. It is found that both excess-shortage transaction and order processing services can lower the entry barrier for capacity sharing, enabling more SMEs to join capacity sharing. When the defective rate is relatively high, or the order processing service effect is relatively good, buyer and seller tend to accept the order processing service and adopt the common trading mode; on the contrary, when the defective rate is relatively low, or the order processing service effect is relatively poor, buyer and seller tend to adopt the excess-shortage transaction mode and do not accept the order processing service. The equilibrium strategy and the conditions for the excess-shortage transaction and order processing service are further given, which provides a basis for the buyers and sellers to choose the cooperative objects and the related decisions.

Key words: capacity sharing; defective rate; excess-shortage transaction; order processing service; equilibrium strategy