In this article we study patterns of vertical product differentiation in a multi-product monopoly using a random … the level of unobserved demand heterogeneity and the observed dispersion of willingness to pay for quality. Only if … for quality do not affect the relative welfare efficiency of the monopolist …

downgrades quality whereas the seller sometimes upgrades it. Our model of targeting with endogenous product quality provides some … new insights into the way the transition from mass to specialized advertising can affect market outcomes. Quality …

Firms signal high quality through high prices even if the market structure is highly competitive and price competition … is severe. In a symmetric Bertrand oligopoly where products may differ only in their quality, production cost is … increasing in quality and the quality of each firm’s product is private information (not known to consumers or to other firms …

that the monopoly platform does not introduce distortions over and above those arising from the market power of the …

In this article we study patterns of vertical product differentiation in a multi-product monopoly using a random … the level of unobserved demand heterogeneity and the observed dispersion of willingness to pay for quality. Only if … for quality do not affect the relative welfare efficiency of the monopolist. …

We consider an oligopolistic market where firms compete in price and quality and where consumers are heterogeneous in … knowledge: some consumers know both the prices and quality of the products offered, some know only the prices and some know …-inefficiency of the price/quality offers. But, better price/quality combinations are signalled with lower prices in one type and with …