To shed further light on the correlation between consumer product involvement and consumer product knowledge, the authors examined such correlation by treating product type and product knowledge type as moderating variables. The results show that the correlation between a consumer's product involvement and objective product knowledge is higher in a utilitarian product than in a hedonic product. On the contrary, the correlation between a consumer's product involvement and subjective product knowledge is higher in a hedonic product than in a utilitarian product. The implications of these results are discussed. © 2003 Wiley Periodicals, Inc.