This paper explores tying in the situation where a multi-product firm without monopoly power competes against several single-product firms. I consider two markets: one for a horizontally differentiated good, the other for a homogeneous good. As opposed to the widely accepted opinion that tying...

This paper analyzes tying and bundling as an entry deterrence tool. It shows that a multi-product firm can defend its monopoly position in one market via tying even when it does not have market power in another market. This is shown on a model with two complementary goods, each of which is...