Mobile payment was envisioned a decade ago, but it has not become a mainstream business until recently. The stagnation of the mobile payment services has incited business stakeholders as well as academic researchers searching for catalysts for its adoption. As such, the study of mobile payment has yielded a large collection of literatures over the years. We utilized the intellectual structure to decipher the main research themes in this filed. The main research themes discovered include: mobile payment adoption, security and privacy, its business models, business characterization, and new mobile payment systems.
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