Price authority and information sharing with competing supply chains

We characterize the degree of price discretion that two competing manufacturers grant their retailers in a framework where demand is uncertain and privately observed by the retailers, while manufacturers only learn it probabilistically. In contrast with the consolidated vertical contracting literature, we assume that manufacturers cannot use monetary incentives to align the retailers’ incentives to pass on their unverifiable distribution costs to consumers. Our objective is to study how, in this context, an information-sharing agreement according to which manufacturers share their demand information affects prices, profits and consumer surplus. While equilibria with full price delegation never exist, regardless of whether manufacturers share information, partial delegation equilibria may exist with and without the exchange of information. These equilibria feature binding price caps (list prices) that prevent retailers from passing on their distribution costs to consumers, and are more likely to occur when manufacturers exchange demand information than when they do not share this information. Manufacturers profit from exchanging demand information when products are sufficiently differentiated, and retailers’ distribution costs are high enough. Yet, expected prices are unambiguously lower when manufacturers exchange demand information than when they don't, making the information exchange beneficial to consumers.