Deletion of Active inertia

Comment: and expand per coverage in http://www.economist.com/node/11701430 The Economist and http://hbswk.hbs.edu/item/3501.html Harvard Business School. And let's remember , took only a moment to find these
Stance: keep
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE)

Comment: per Jonathanwallace.  It took me a moment between teaching classes to add the |sources to the article.  Off to class
Stance: keep
Cited policy: Wikipedia:Reliable sources (WP:RS)