Knowledge that Transforms

Product knowledge has been recognized as an important factor in the research on consumer decision making. It has also been acknowledged that there are different types of knowledge. In this article, we examine the impact of three types of knowledge—subjective knowledge, objective knowledge, and usage experience—on selected aspects of consumer decision making. Effects are examined within the context of an electronic shopping scenario in which subjects selected a VCR brand based on brand and attribute information that could be accessed through a personal computer. Results indicate that, consistent with real‐world experience, the three types of knowledge are correlated with each other. However, their effects on attribute importances, information search, and perceived decision outcomes vary by level and type of knowledge. We discuss these effects and their implications for future research.

Two conceptualizations of innovativeness are operationalized and related to the new product adoption process. Multi‐item scales designed to measure consumer independent judgment making (i.e., the degree to which an individual makes innovation decisions independently of the communicated experience of others) and consumer novelty seeking (i.e., the desire to seek out new product information) are developed and tested on adult consumers. Tests of the hypothesized effects of these traits show that consumer novelty seeking is positively related to early stages of the adoption process (i.e., actualized novelty seeking and new product awareness), whereas consumer independent judgment making is only associated with later stages of the adoption process (i.e., new product trial). The implications of these findings and suggestions for future research are also discussed.