Three experiments show that the source of price change information—whether human or nonhuman—moderates the effect of price change on perceptions of price fairness. Both inferences of the marketer's motive and stimulus-induced affect mediate the effects of the source and price change. Opportunity and motivation to process also affect the relative influence of inferred motive and affect. This research demonstrates antecedent roles of both price source and affect.

This research demonstrates the strong influence of disgust in a consumer context. Specifically, it shows how consumer evaluations may change in response to physical contact with products that elicit only moderate levels of disgust. Using evidence from six studies, the authors develop a theory of product contagion, in which disgusting products are believed to transfer offensive properties through physical contact to other products they touch, thus influencing evaluations.