Haiyi Zhu, Bernardo A. Huberman, Yarun Luon. To Switch or Not To Switch: Understanding Social Influence in Recommender Systems

Natural Sciences / Computer Science / Cognitive science

Submitted on: Aug 22, 2012, 21:26:35

Description: We designed and ran an experiment to test how often people's choices are reversed by others' recommendations when facing different levels of confirmation and conformity pressures. In our experiment participants were first asked to provide their preferences between pairs of items. They were then asked to make second choices about the same pairs with knowledge of others' preferences. Our results show that others people's opinions significantly sway people's own choices. The influence is stronger when people are required to make their second decision sometime later (22.4%) than immediately (14.1%). Moreover, people are most likely to reverse their choices when facing a moderate number of opposing opinions. Finally, the time people spend making the first decision significantly predicts whether they will reverse their decisions later on, while demographics such as age and gender do not. These results have implications for consumer behavior research as well as online marketing strategies.

The Library of Congress (USA) reference page : http://lccn.loc.gov/cn2013300046.

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