We study competition among upstream firms when each of them sells a portfolio of distinct products and the downstream … has a limited number of slots (or shelf space). In this situation, we study how bundling affects competition for slots … extraction due to the coexistence of the internal competition (i.e. competition among its own products) and the external …

support. By bundling, the A-monopolist provides previously non-existent competition with the B-monopolist in the latter … barrier because competition reduces profits. Were bundling harmful, the per se proscription against market allocation should …

entry. Competition strongly decreases the rate at which prices increase in quality and induces the incumbent to introduce … additional medium-to-high quality offerings that the incumbent could have introduced absent competition but chose not to. Our … findings are relevant for the broadband industry because they suggest that competition can improve broadband quality through …

products. Next, we examine four major rationales for regulatory intervention of this kind: (1) competition in the form of lower … prices and greater innovation in retail markets is desirable, (2) competition in retail markets cannot be achieved with … investment hypothesis), and (4) competition in wholesale access markets is desirable. We proceed by testing empirically the major …

good is provided, but under certain conditions, competition leads to excessive provision. Further, there is generally a …

-sided with paid products. In some cases, market competition is asymmetric with a single firm dominating the one-sided market … competition between the multi-product firms. Incorporating the platform market structure yields several interesting results. It is …