Brand Attachment

The purpose of this review is to provide an overview of various literatures related to consumer search for information, and its effect on markets. Normative models of consumer search prior to purchase, and of consumer search through experience, are reviewed first. Models of consumer consideration set formation are also outlined. These models are generally based on consumers balancing the costs and benefits of search, which implies that search should be limited if it is costly. The extensive empirical literature on consumer search, which is reviewed next, does indicate that search is limited. The third major section of this review discusses the effect of search on market equilibrium, and market forces related to the supply of information. These include models of how advertising, retailing, and the Internet become organized to facilitate consumer search. The review concludes with a discussion of overall findings and suggestions for further research.