Our final proposition is that attributions for dispersion
will affect product-related judgment and choice. When
WOM is attributed to the product, its valence indicates the
degree to which the product performs as promised (Khare
et al. 2011; Sun 2012; West and Broniarczyk 1998), and its
dispersion indicates variability in that performance (e.g.,
quality control problems, variance in individual attributes,
inconsistency across time or usage occasion). As a result,
higher dispersion should increase perceived outcome uncertainty
and risk, affecting judgments negatively. In contrast,
the implications of WOM attributed to reviewer characteristics
are markedly less negative. In fact, reviewerattributed
dispersion presents consumers with opportunities
to learn about their own preferences (i.e., extensive learning;
Hoeffler et al. 2013), to satisfy curiosity about their potential
experience (Raju 1980), or to demonstrate open-mindedness
(Ratner and Kahn 2002). Together, these opportunities
should mitigate the negative effects of dispersion on product
evaluations.
Our final proposition is that attributions for dispersionwill affect product-related judgment and choice. WhenWOM is attributed to the product, its valence indicates thedegree to which the product performs as promised (Khareet al. 2011; Sun 2012; West and Broniarczyk 1998), and itsdispersion indicates variability in that performance (e.g.,quality control problems, variance in individual attributes,inconsistency across time or usage occasion). As a result,higher dispersion should increase perceived outcome uncertaintyand risk, affecting judgments negatively. In contrast,the implications of WOM attributed to reviewer characteristicsare markedly less negative. In fact, reviewerattributeddispersion presents consumers with opportunitiesto learn about their own preferences (i.e., extensive learning;Hoeffler et al. 2013), to satisfy curiosity about their potentialexperience (Raju 1980), or to demonstrate open-mindedness(Ratner and Kahn 2002). Together, these opportunitiesshould mitigate the negative effects of dispersion on productevaluations.
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