Abstract:

The paper mainly focuses on how to establish a model to analyse the development  trends of profit and stocks of the supply chain under uncertain market circumstances. In order to solve the deficiency of analyzing developing the trends of profit and stocks of the supply chain under uncertain circumstances, a model based on the general stochastic price color Petri nets (GSPCPN) is proposed in virtue of PCPN (price colored Petri net ) and GSPN（General stochastic Petri nets）. The transition step rule of PCPN is defined.A supply chain process case is demonstrated to show how to apply the GSPCPN. The conclusion is that GSPCPN does well in solving the stock and profit analysis problem in the supply chain modeling under uncertain market circumstances.

Key words: PCPN;GSPCPN;supply chain