One kind of sales promotion combinationdecision making of enterprises was analyzed, and a corresponding mathematical model was also built.
分析了一类企业促销组合方式的选择问题，建立了相应的数学模型。
2
The group decision-making we mentioned here is not only a combination of many decision-makers but also a combination of methods which is called combinationdecision-making in some papers.
The investment decision methods can be divided into financial decision method environmental decision method, random risk decision method and investment combinationdecision method, etc. ;