CHAPTER 11
Social Influences on Consumer Behavior
CHAPTER SUMMARY
Reference groups are part of a general set of influence sources—those that are marketer
dominated and nonmarketer dominated and those that are delivered through the mass media
and personally. Nonmarketer-dominated sources are regarded as more credible than
marketer-dominated sources, and personally delivered information generally involves less
reach, but more capacity for two-way communication than mass-media sources.
Opinion leaders and market mavens represent special sources of influence. Opinion leaders
are experts in a product category; market mavens are individuals involved in the marketplace
in general. Given their potential to serve as brokers of information, marketers may target these
individuals explicitly or simulate opinion leaders in marketing communications.
Consumers are members of groups, and these groups can have tremendous influence on
consumer behaviors. Reference groups are sets of people with whom individuals compare
themselves to guide their attitudes, knowledge, and/or behaviors. We have aspirational,
associative, and dissociative reference groups, which can be described according to their
degree of contact, formality, homophily, density, degree of identification, and tie-strength.
Reference groups may play a powerful socializing role, influencing key actions, values, and
behaviors of consumers. Marketers can take advantage of reference-group types,
characteristics, and socializing influences by associating products with aspirational reference
groups, accurately representing associative reference groups, targeting formal reference
groups, targeting dense networks, and making use of weak ties to build customer networks.
Sources of influence can create normative and/or informational influence. Normative influence
may create effects like brand-choice congruence, conformity, compliance, and reactance.
Normative influence tends to be greater for products that are publicly consumed, considered
luxuries, or regarded as a significant aspect of group membership. Normative influence is also
strong for individuals who tend to pay attention to social information. Strong ties and the
extent to which consumers identify with the group also increase the likelihood that consumers
will succumb to normative influences. Finally, normative influence is greater when groups are
large and cohesive, when members are similar and/or experts, and when the group has the
power to deliver rewards and sanctions.
Informational influence operates when individuals affect others by providing information. Such
information, in turn, may greatly affect consumers’ search and decision-making. Consumers
are more likely to seek and follow informational influence when products are complex, when
product purchase or use is regarded as risky, and when brands are distinctive. The more the
influencer is regarded as an expert, the less the consumer’s knowledge and confidence, and
the more consumers are predisposed to listen to information from others, the greater the
informational influence. Informational influence is also greater when groups are cohesive.