Amazon's Smart Innovation Strategy
Building a great business and operating it well no longer guarantees you'll be around in 100 years, or even 20. In 1958, the average length of time a company remained on the S&P 500 was 57 years; by 1983, it had dropped to 30 years; in 2008, it was just 18.
Source: http://www.businessweek.com...








