The paper studies how the optimal nonlinear quantity-payment allocation can be truthfully implemented by optional tariffs in a differentiated goods duopoly. Consumers choose from a menu of tariffs and are subsequently billed according to this. We find that implementation by simple two part...

There is a gap between the recommendations of the theory of second degree price discrimination and the practices of firms that target consumer segments with varying willingness to pay with two or more distinct tariffs. We present a model where consumers' private information is single dimensional...