SUBSTANTIATION OF INDICATORS FOR MULTI-PARAMETER REAL INVESTMENT EFFICIENCY COMPARISON
The article analyzes the mathematical properties of new indicators of real investment efficiency assessment: “index of increment in value ratio» (SG) and “index of specific increment in value ratio» (IS). IS index is used to compare the efficiency of “multi-parameter” investments. The term “”multi-parameter” is referred to the investments, whose amounts, implementation periods and interim results are simultaneously different. Modifications of indices are analyzed and a mathematical function to determine the range of their reliability is described.