An equilibrium calculation in a market with non-convex sets by separating them with a hyperplane is difficult. This is typical for markets with increasing returns. For the market of information products, which includes software and datasets. This market is used to illustrate the results obtained. It is known that a two-part tariff supports a curved surface construction to separate sets. The family of tangents to the surface is interpreted as a menu of contracts. Differentiated pricing is known to be one of the conditions for equilibrium in a market for goods with non-rivalrous consumption. The authors contribution to the study of two-part tariffs consists in an algorithm application for optimal resource allocation when the menu of contracts does not fully satisfy consumer preferences. It is possible to formulate an offer based a two-part tariff from the menu of contracts. This offer extends the menu. The algorithmic procedure guarantees a Pareto optimization under monotonic preferences.
Ivan Nevolin (Thu,) studied this question.