This paper analyzes optimal product lines when consumers differ both in their taste for quality and in their desire for social image. The market outcome features partial pooling and product differentiation that is not driven by heterogeneous valuations for quality but by image concerns. A...

We analyze the effects of a generalized class of negative consumption externalities (asymmetric and non-atmospheric) on the structure of effcient commodity tax programs. Households are not only concerned about consumption reference levels - that is, they gain utility from "keeping up with the...