Online auctions present unique characteristics in the consumer decision-making process that raise new issues related to consumer shopping behaviors in auction-based purchases. The present research examined the relationship between consumer characteristics (i.e., compulsive buying behavior, variety seeking tendency, and price sensitivity) and shopping value (i.e., utilitarian and hedonic) in online auctions and found that both compulsive buying behavior and variety-seeking tendency are critical factors of shopping value in the online auction environment. There were no positive relationships between price sensitivity and shopping value. The results of this study also revealed that consumers' shopping value positively influenced their preference, which, in turn, formed behavioral intentions in online auctions. While utilitarian value was found to be a significant predictor of behavioral intentions, hedonic value was not. However, hedonic value influenced intentions indirectly through preference. (C) 2008 Elsevier Ltd. All rights reserved.