complement is a duopoly, whereas the other is a monopoly. In such framework, when products are highly di¤erentiated, the low …

side” of the market) increases total industry surplus compared to the fully private optimum at which the monopoly platform …

capacities can be larger or smaller with a duopoly than with a monopoly. If the two firms co-ordinate on a pareto dominant …

discriminatory prices are close together, so the cost of misallocation is less than the benefit of higher output. …

output and welfare. We focus on benchmark cases, including constant demand elasticities, with constant curvature of inverse … output) and one (for welfare), and (b) whether low-price markets have greater curvature than high-price markets. …

The effects of demand shifts on output, price and profits in imperfectly competitive industries with no entry or exit … functions. Necessary and sufficient conditions for output, price and profits to increase with an outward demand shift are … derived for each case. Either output or the price, but not both, may fall with a positive demand shift. Profits may also fall …

telecommunications: a monopoly of the local telecommunications network, as well as a monopoly in retail local telecommunications services … competitors. Thus, Verizon used its monopoly of the network infrastructure to disadvantage entrants in retail. In doing so … makes sense only insofar as it helps the defendant maintain or obtain monopoly power.” …

side” of the market) increases total industry surplus compared to the fully private optimum at which the monopoly platform …