In the network innovation environment, the knowledge trading between enterprises could be divided into traditional pattern (TP)

The knowledge trading between enterprises could be divided into traditional pattern (TP) and E-commerce pattern (ECP). Both two patterns have their own advantages and disadvantages, and enterprises would face the selection. In the paper, mathematical model is constructed to analyze the selection mechanism of two patterns. The result shows that: when some factors increase, the possibility that enterprises choose TP increases; while when some other factors increase, the possibility that enterprises choose ECP increases, too. But when the reserve cost of ECP gets high enough, that will make enterprises more willing to choose the hybrid pattern.