<jats:title>Abstract</jats:title><jats:p>This study examines the influence of four personality characteristics (self‐efficacy, Machiavellianism, perceived control, and risk‐taking) on consumer attitude toward complaining and propensity to complain. The proposed model is tested on two groups of consumers classified as “complainers” and “non‐complainers.” The findings reveal that the two groups differ distinctly on the pattern of relationships among the variables. The implications of these differences are discussed. © 2007 Wiley Periodicals, Inc.</jats:p>