On the contrary, the lack of substitute goods predetermines the absolute or relative inelasticity of demand. Inelastic demand and other limits on complementary goods make it difficult to develop the market. This situation is aggravated by the fact that the buyer must usually purchase 2 products in order to get the full value from them. The inability of such products to develop the market arises from this dependence since when one product disappears from the market, the second automatically disappears too. There is a clear example. Imagine that cars running on gasoline have become unnecessary because of the development of electric cars. As a result, the number of gasoline sales will decrease very much and may stop altogether. As a result, as many as 2 products will disappear from the market, which will make it poorer and less diverse. In his article, the author gives another example of such a negative impact highlighting that the problem of additional products is in the total value of