Abstract
Consumers who generate online reviews provide a vital information service for the buying public, influencing nearly half of all purchase decisions. This study focuses on factors that motivate online reviewer engagement (ORE). ORE is a contextually dependent psychological state characterized by varying degrees of altruistic and egoistic market-helping motives coupled with an individual’s intrinsic motivation to review when the needs for autonomy, competence, and social relatedness are fulfilled. Amazon.com’s top reviewer community, which uses a public ranking system to motivate, recognize, and influence reviewer behavior, provides the study’s context. Three reviewer types—
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