CooperativeAdvertising means that several advertisers who are connected in business advertise together, with the purpose of creating greater momentum and reducing their respective advertising expenses. Because it is a group purchase, you can get a lower price than buying advertising time (layout) alone. Generally speaking, joint advertising can be divided into two categories: joint between the same industry and joint between different industries. Sometimes, joint product promotion between different industries can also play a complementary role. The first is that the two companies combine resources to build a brand with the same brand, and managers use their respective resource advantages to form the same advertising content to promote the brand. This form mainly allows the new products of the joint venture to enjoy a unique positioning. The second is that a company uses a marketable brand to balance the position of other products under this brand. This form is mainly used to highlight the advantages of core products or brands, so as to establish consumers' preference for core products. The third is that the two manufacturers jointly launch advertising activities with their own brand characteristics with resources, that is, the two companies jointly contribute their own brands to advertise.