This empirical paper explores the antecedents and consequences of trust in the online retail context and examines the moderating role of consumers' familiarity with a Web site in the relationship between Web site quality and trust. Data were collected with an online questionnaire. The research highlights the importance of the Web site interface in consumer online behavior by systematically examining how different quality features affect consumer trust. A multidimensional view of Web site quality with the following dimensions is developed: Web site usability, security and privacy assurance, and product information quality. Trust is shown to lead to positive consequences, such as the formation of positive attitudes and behavioral intentions toward the Web site. The study also identifies the moderating role of Web site familiarity in the relationships between aspects of Web site quality and trust. The implications for e-retailers in terms of Web site design and marketing communications strategy are explored. © 2010 Wiley Periodicals, Inc.The Internet is changing the way consumers shop and live their lives, with global online retail sales reaching $204 billion in 2008(Mulpuru, 2008. Among the factors inhibiting future growth are customer concerns about the privacy of personal information (Yi & Gong, 2008) and a lack of trust in e-commerce vendors (Novak, Hoffman, & Peralta, 1998). Trust has a central role in many such Psychology & Marketing, Vol. 27(4) commercial activities (Lynch, Robert, & Srinivasan, 2001), especially when the trustor depends on, but lacks control over, the trustee (Gefen & Straub, 2004). Internet users can experience this vulnerability because they often lack control over others' access to their personal information. This vulnerability is compounded because Internet shoppers are not able to feel, touch, or try out physical products. Thus, a consumer buying shoes is unable to check the fit, color, or quality of materials before buying. Deprivation of intrinsic cues, such as smell, taste, and texture, increases transaction risks for consumers (Kotha, Rajgopal, & Venkatachalam, 2001), particularly in certain product categories.:Trust and risk are closely interrelated: The higher the perceived risk, the greater the trust needed to facilitate a transaction (Mayer, Davis, & Schoorman, 1995). Consumer attitudes toward online shopping are also affected (Jarvenpaa, Tractinsky, & Vitale, 2000); consumers are unlikely to patronize Internet outlets that fail to generate trust (Jarvenpaa, Tractinsky, & Saarinen, 1999). This is particularly so when the risk associated with a purchase is high. Consequently, continued growth in Internet commerce depends at least in part on the development of trust between suppliers and consumers.In view of the importance of securing trust, online vendors must endeavor to build trust and reduce perceived consumer vulnerability. Research into the antecedents and consequences of trust, and the implications for marketing practices, is therefore an important priority. This st...