This article describes ways to use original texts in the National Russian Corpus as well as news texts for teaching Russian as a foreign language. Two-year work of a scientific group of Higher School of Economics (Nizhny Novgorod-Moscow), which is called CorpLings is analyzed. Special attention...

We consider second-degree price discrimination for two types of consumers. When the net-of-cost valuation functions cross at least once at some positive quantity, it is always optimal to serve both types of consumers. Moreover, the type with the higher valuation peak always gets the socially...

This pedagogical note explains how the same basic principle can be applied to explain the profit-maximizing behavior of a monopolist under both linear and nonlinear pricing by introducing an average price function. It is shown that optimal conditions under nonlinear pricing are similar to that...

We compare second-degree price discrimination with uniform pricing using two linear demands. Our comparison shows that second-degree price discrimination can result in a welfare-enhancing market foreclosure (both markets are served under uniform pricing but one of them is excluded under...