Does the social comparison still intensify the competition among sellers in volatile markets? In this paper, we study the price competition in markets with volatile sizes and, importantly, with sellers that socially compare their profits with each other ex post for any realization of market...

We study a monopolistic robust pricing problem in which the seller does not know the customers' valuation distribution for a product but knows its mean and variance. This minimal requirement for information means that the pricing managers only need to be able to answer two questions: How much...