How to Jump-Start the Clean-Tech Economy - Harvard Business Review

I found this in HBR:

"Like Edison’s, our framework for thinking about new systems consists of four interdependent and mutually reinforcing components: an enabling technology, an innovative business model, a careful market-adoption strategy, and a favorable government policy."

How to Jump-Start the Clean-Tech Economy - Harvard Business Review

....via this:

http://blogs.hbr.org/anthony/2011/01/on_tracking_transformational_trends.html

both are excellent short quick reads!