Theorem Ribchinsky
The theorem is the assertion that, if the value of one of the two factors of production increases, then to maintain the constancy of prices of goods and factors necessary to increase the production of the product, which is intensively used, this factor is increased, and reduce the production of the rest of the production, intensively using a fixed factor. To the prices of goods remained constant, the same should be the price of factors of production. Prices of factors of production can remain constant only in the case when the ratio of the factors used in the two sectors remains constant. If growth is one factor can only take place with increasing production in the industry, which relies heavily on this factor, and reducing production in other industries, leading to the release of a fixed factor, which will be available for use together with a growing factor in the growing industry.