3M institutionalised innovation by enforcing a ratio like this. I can't remember the exact figures but something like 30% of every division's revenues had to be

3M institutionalised innovation by enforcing a ratio like this. I can't remember the exact figures but something like 30% of every division's revenues had to be from products released in the previous 5 years. An "aged revenue" ratio might make a good performance predictor for a company: the proportion of revenues that comes from products designed in the last 5 years. GOOG:MSFT:FBK:AMZN - you could get some powerful performance indicators from that simple stat.