An integrated monopoly, where all complements forming a composite good are offered by a single firm, is typically … competition in the market for each complement. We present a model with two perfect complements and introduce n imperfect … substitutes for one and then for both complements. We prove that, if one complementary good is produced by a monopolist, and if …

leader. The reverse is true below this level. This result holds for both substitutes and complements. …

complementors. We study the interaction between firms in markets with one-way essential complements. One good is essential to the … of surplus between the two goods and the related incentive for firms to create complements to an essential good. Formally …

In Cournot's model of complements, the producers of A and B are both monopolists. This paper extends Cournot's model to … allow for competition between complements on one side of the market. Consider two complements, A and B, where the A+B bundle …

monopolists, nesting standard models of perfect complements and imperfect substitutes. I show sufficient conditions for a discrete …