We discuss the regulation of a multiproduct monopolist when the firm has private information about cost or demand conditions. The regulator offers the firm a set of prices from which to choose.
Who will win the bidding to become the sole producer of a new product: the monopolist of a related product or a new entrant?
I analyze compatibility and bundling choices when one generalist firm offering both components of a system competes against two specialist firms each supplying one component only (but not the same one
I examine entry into markets where demand is an increasing function of past sales because of learning, networks, or fashion.
In this paper, the evolution of product differentiation in industries is modeled as the result of a cumulative cost-reduction process subject to spillovers in a differentiated oligopoly.
