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This research aims to predict consumer intentions to transact online, drawing upon the theory of planned behavior (TPB). Consumer intention to transact in e-commerce is proposed as a three-dimensional behavioral intention to (a) receive information, (b) provide requisite personal information, and (c) engage in product purchases. The first stage of the model draws upon the TPB to interrelate the proposed three-dimensional online transaction intentions with attitude and perceived behavioral control. The second stage adds antecedents of attitude and control, while adhering to TPB's nomological structure. Given the uncertainty present in e-commerce, trust in a Web retailer is hypothesized as a salient belief that indirectly influences transaction intentions, both through attitude and also through perceived behavioral control. Also, given the technological unpredictability and newness of the Internet, trust in control …