Abstract
The concept of persona marketing was developed in the United States. Its use is currently increasing in Japan, predominantly among large companies that can expend significant organizational resources for large-scale data analysis, involving sizeable budgets and several teams. However, even an individual buyer or seller can conduct persona marketing, using a blog; I have demonstrated this in another study. I have named this method "blog persona marketing." In this study, "blog persona marketing" is discussed in more detail. Particularly, this study refines the concept of the psychological transformation of the customer post-purchase, in conjunction with the "purchasing decision model."