David Hirshleifer - USC

"Visibility Bias in the Transmission of Consumption Beliefs and Undersaving"

Abstract

We model visibility bias in the social transmission of consumption behavior. When consumption is more salient than non-consumption, people perceive that others are consuming heavily, and infer that future prospects are favorable. This increases aggregate consumption in a positive feedback loop. A distinctive implication is that disclosure policy interventions can ameliorate undersaving. In contrast with wealth-signaling models, information asymmetry about wealth reduces overconsumption. The model predicts that saving is influenced by social connectedness, observation biases, and demographic structure; and provides new insight into savings rates. These predictions are distinct from other common models of consumption distortions.

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