Nonlinear pricing is that which is in direct proportion to the quantity purchased; for example, airlines' frequent flyer bonuses. The first part of this work consists of a non-mathematical discussion of this pricing; the second is more technical and aimed at readers interested in advanced topics.

"Anyone interested in pricing in imperfectly competitive and regulated markets can learn a great deal from Nonlinear Pricing. It will be a standard advanced text and reference for years to come....Nonlinear Pricing has increased both economists' understanding of nonlinear tariffs and practitioners' ability to implement them in a variety of settings. Like other important and enduring works, Nonlinear Pricing poses questions no less interesting than those it answers."--Journal of Political Economy "Anyone interested in pricing in imperfectly competitive and regulated markets can learn a great deal from Nonlinear Pricing. It will be a standard advanced text and reference for years to come....Nonlinear Pricing has increased both economists' understanding of nonlinear tariffs and practitioners' ability to implement them in a variety of settings. Like other important and enduring works, Nonlinear Pricing poses questions no less interesting than those it answers."--Journal of Political Economy "Robert Wilson has written an important book...its methodological contributions should make it valuable to the wider audience of economists working on a range of topics in the Economics of Information."--Journal of Economic Literature