Mobile commerce has been heralded repeatedly as the new service frontier of the millennium. Present market reality, however, seems to be less optimistic. Therefore, the current study explores the factors contributing to the adoption of mobile services in a context of a mobile environment. The purpose of the study is to present a conceptual model of user adoption of mobile commerce applications. This model identifies factors which may potentially influence an individual’s decision to start or continue utilizing a mobile commerce application. The major distinction of the proposed model from those of prior Information Systems and Management technology adoption projects (i.e. the Technology Acceptance Model) is that it includes not only perceived usefulness and perceived ease of use but also a perceived security construct applied to mobile commerce applications.

　　This study presents an extended technology acceptance model (TAM) that integrates perceived security into the TAM to investigate what determines user mobile commerce application acceptance. The proposed model is empirically tested using data collected from a survey of mobile commerce users. The structural equation modeling technique was used to evaluate the causal model. Our findings indicate that all variables (Perceived Usefulness, Perceived Ease of Use, and Perceived Security) significantly affect user’s behavioral intent. Several implications for information technology acceptance research and mobile commerce management practices are discussed.

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