http://www.1000ventures.com/business_guide/innovation_system_metrics.html
Return on Innovation Investment (R2I)
…R2I also shows return on investment, but only from new product innovation investments, not all investments. It looks at the firm’s total profits from new products (cumulative new profits generated from new products launched) divided by its total expenditures for new products. This long-term ratio shows the firm’s total return from [...]