We model non-drastic technological innovation in a duopoly model with differentiated products. We derive profit functions for both firms which depend on only one variable, the technological gap. As our model derives product demands directly from agent utility we are able to fully describe the...

This paper examines a vertically differentiated duopoly model where firms are distinguished into three dimensions: marginal cost, product quality and the level of product substitutability. I hereby replenish Zanchettin (2006) result in an enlarged parameter space context, and propose more...

We study customization in the Hotelling model with two firms. In addition to providing ideal varieties, the perceived uniqueness of a customized product contributes independently to consumer utility. We show that only when consumer preferences for uniqueness are high customization occurs in...

In this note, we analyze the equilibrium outcomes of pricing games with product differentiation in relation with the extent of market coverage. It is a received idea in the IO literature that the horizontal and vertical models of product differentiation are almost formally equivalent. We show...