text: Increment (net produce or profit) to the -'=apltal Investment which triggered this Increment. In thfs case the efficiency Is defined as the total volume of the national Income or Its Increment (or profit}. Cpmparatlye affl,tency Is determined by the difference of the so-called reduced costs. In this case the efficiency Is defined not by all value of the national Income lncre111ent (net produce> or profit but poly by that part which Is formed after reducing the net produce or profit by Its normative part (the product of efficiency normatlves of production resources by their utilized volume>. General efficiency lndlc~tors Include output/capital ratio. One may note a certain decrease of this ratio :during recent years. but this does not Imply that this has resulted In a decrease of efficiency of social production as a whole. Academician T.S. Kharaturov Indicates that•the efficiency of social production may even rise due to decrease of current costs or prime cost of produce. In Its essence, the calculation of efficiency of capital Investment comes. to a considerable degree• to a comparison of single costs and prime costs. That Is why under certain conditions It Is more feasible to Incur· additional costs if they are returned within a normative period from savings In current expenditure•. Thus. It Is admitted that output/capital ratio cannot be used tor determining efficiency of capital Investment or other economic measures. And It Is correct. One may speak about capital Investment efficiency not taking account of the level of cost of other production resources only In conventional terms, bearing In mind that this Is only e gyotlant faciorlol efficiency. It must be also added that orientation to~ards the Increase of output/capital ratio In every economic entity does not always bring growth of the sum total of output/capital ratios of al 1 totality of these entitles. 
analysis: The text discusses the concept of efficiency in the context of capital investment, referencing national income, output, and costs. It also mentions the importance of considering the level of cost of other production resources. The language used is technical and economic, suggesting that the topic is related to the field of economics. The text does not mention any specific sectors or industries, but rather discusses general economic concepts.