e-비즈니스의 사용의도에 영향을 미치는 선행변수에 관한 비교연구

A Comparative Study concerning Antecedent Variables that influence on Intention to Use of e-Business

The purpose of this study is to reveal the explanation power difference among separately added five antecedent variables that influence on intention to use of TAM model. Six research models related to TAM model were developed to show the explanation power difference between the original TAM model and five augmented TAM models that separately include trust, playfulness, compatibility, self efficacy, and risk. The variable that shows the highest explanation power among these five antecedent variables is compatibility, while two variables showing the lowest are self efficacy and risk. The original TAM model, research model 1, shows only 31% explanation power on intention to use. Compatibility showing the highest shows 43% that include more 12% explanation power than that of the original TAM model. Since both self efficacy and risk variables show only 32% each other, they show only 1% increase of explanation power. Therefore, these two variables are considered to have very low explanation power.