Optimization decision models of multi-attribute and multi-source procurement for divisible goods are presented
under the background of procuring the divisible goods. Firstly, the buyer’s utility function and the supplier’s utility function
are defined under the information of multi-attribute. Then, aiming at maximizing social welfare, two optimization models of
selecting the suppliers in multi-source procurement of divisible goods are established based on the discriminatory price and
uniform price respectively. By solving these models, the optimal suppliers and the optimal allocation strategies are obtained.
Finally, a multi-attribute and multi-source procurement example about steam coal shows the feasibility and rationality of the
proposed model.