Most agree that climate change is a serious threat. It has increasingly been recognized by scientists and policymakers as a consumer behavior issue: What, how, and how much people consume directly impacts the environment. Sustainable consumer behavior is behavior that attempts to satisfy present needs while simultaneously benefiting or limiting environmental impact. Moreover, understanding sustainable consumer behavior is central to any paradigm shifts in how society approaches environmental problems. This article summarizes and organizes research from the past 20 years and explores the psychological drivers of sustainable consumer behavior. Four areas of scientific inquiry that have dominated research agendas are identified: (a) cognitive barriers, (b) the self, (c) social influence, and (d) product characteristics. The objective is to provide a valuable research tool that stimulates additional research in the area of sustainable consumer behavior.

Marketers struggle with how best to position innovative products that are incongruent with consumer expectations. Compounding the issue, many incongruent products are the result of innovative changes in product form intended to increase hedonic appeal. Crossing various product categories with various positioning tactics in a single meta-analytic framework, the authors find that positioning plays an important role in how consumers evaluate incongruent form. The results demonstrate that when a product is positioned on functional dimensions, consumers show more preferential evaluations for moderately incongruent form than for congruent form. However, when a product is positioned on experiential dimensions, consumers show more preferential evaluations for congruent form than for moderately incongruent form. Importantly, an increase in perceived hedonic benefits mediates the former, whereas a decrease in perceived utilitarian benefits mediates the latter. The mediation effects are consistent with the view that consumers must first understand a product's functionality before engaging in hedonic consumption.

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This article proposes a utilitarian model in which recycling could reduce consumers' negative emotions from wasting resources (i.e., taking more resources than what is being consumed) and increase consumers' positive emotions from disposing of consumed resources. The authors provide evidence for each component of the utility function using a series of choice problems and formulate hypotheses on the basis of a parsimonious utilitarian model. Experiments with real disposal behavior support the model hypotheses. The findings suggest that the positive emotions associated with recycling can overpower the negative emotions associated with wasting. As a result, consumers could use a larger amount of resources when recycling is an option, and more strikingly, this amount could go beyond the point at which their marginal consumption utility becomes zero. The authors extend the theoretical model and introduce acquisition utility and the moderating effect of the costs of recycling (financial, physical, and mental). From a policy perspective, this research argues for a better understanding of consumers' disposal behavior to increase the effectiveness of environmental policies and campaigns.