There are instances when a consumer's overall utility depends on her own utility as well as on the utility of another individual (e.g., in case of shared consumption with another individual, or in case of buying a gift for someone). In such instances, in order to make a choice that maximizes her...

Sponsored search advertising has become an important venue for firms to compete for consumers. As a result, many keywords attract a large number of bidders, where the competing advertisers could be quite heterogeneous. We examine whether this heterogeneity impacts how consumers perceive and...