Cost-benefit ratios concepts

Return on investment (ROI) is a widely used method for analyzing the performance of investments in a company or investments for an individual. Whether investments are in stocks, bonds, or real estate, an investor wants to know the annual return from the investment. The concept suggests that a person must spend money (invest) in order to earn money on the investment (return). The concept is very similar to cost-benefit ratio. 

The ideal innovation concept is borrowed from the Theory of Inventive Problem Solving (TRIZ), which calls this perfect state the ideal final result. As a ratio, the value quotient approaches infinity, or a state where all benefits of a solution are achieved at zero cost and zero harm. In TRIZ terminology, this is called working backward from perfect, which forces the innovator to break through his or her psychological inertia into new, less limiting domains of thinking. 

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