已有关于品牌延伸的研究比较成熟的理论有分类理论、泛化理论等，比较成熟的模型有情感迁移模型以及联想需求模型等。
The theories that are more mature are including classification theory and generalization theory . The Recognized model contains Affect-transfer Model and Association-demand Model .
联想需求模型