This paper investigates the strategic effect of bundling when a multi-product firm producing two complements faces competition in both markets. I consider a demand structure where both Cournot and Bertrand competition can be evaluated. Bundling is completely ineffective when firms compete in...

In an extended version of d'Aspremont and Jacquemin's (1988) R&D competition model we find a region where the game is a prisoner's dilemma: firms still invest in R&D but they would obtain a higher profit by not investing at all. In a repeated version of the game, we prove that firms implicitly...

We analyse how market competition in a vertically differentiated polluting industry is affected by product variants that comply at different levels with "green" social norms. A green consumption behavior is considered as a byword of good citizenship. Consumer preferences depend on a combination...

We study whether complementarities can help a firm enter a market with strong network effects and incumbency advantages. We find that bundling the network good with a complementary good, or using the network good as a loss leader (i.e., pricing below marginal cost) can facilitate entry, but that...