It has been commonly argued that the decision of a large number of inventors to license complementary patents necessary for the development of a product leads to excessively large royalties. This well-known Cournot-complements or royalty-stacking effect would hurt efficiency and downstream...

As many pupil find difficult to understand the initial explanations of duopoly (two firms in a market), this paper attempts to provide a simplified mathematical illustration with a numeric example about the basic explanation of duopoly presented by Antoine Augustin Cournot (1801-1877). This...

This paper characterizes the welfare efficiency of the Cournot equilibrium and provides bounds for the loss in consumer surplus, producer surplus and welfare when the number of firms in the market changes. I only assume that demand is decreasing in price and costs increasing in the quantity...