Economic efficiency estimation of constructive decision variants in building
In the article the technique of an economic efficiency estimation of constructive decision variants in building on the basis of comparison of the resulted expenses (hang-the-expense approach) is resulted agrees SN 509-78. And the technique of an economic efficiency estimation of constructive decision variants in building developed by the author on the basis of comparison of a net present value (the profitable approach), thus economic efficiency account is conducted from the investor point of view.