The Influence of Shared Consumption on Product Efficacy Perceptions: The Detrimental Effect of Sharing with Strangers
研究发现，与陌生人共享原本个人使用的产品（如洗手液）会降低消费者的产品认同感，进而削弱对产品功效的感知，且该效应仅对高自我品牌联结的消费者显著。
Opportunities for the shared consumption of publicly available products that once might have been considered personal-use only, such as hand sanitizers and shampoos, are proliferating in the consumer environment. This work explores shared product consumption in these underresearched, but now ubiquitous, contexts. The authors suggest and find, over a series of five studies and across a variety of product domains, that sharing a product with strangers (i.e., sharing-out) engenders a lower sense of identification with the product, which leads to lower perceived product efficacy. They further show that the dampening effect of sharing-out on efficacy perceptions is limited to consumers high in self–brand connection.