A SciAm article today by Chris Arnade argues that another equation is more to blame, and that it "requires nothing more than middle school algebra to understand and is taught to every new Wall Street employee. It is leveraged return."
In other words, the return on assets using borrowed money.
Boing Boing editor/partner and tech culture journalist Xeni Jardin hosts and produces Boing Boing's in-flight TV channel on Virgin America airlines (#10 on the dial), and writes about living with breast cancer. Diagnosed in 2011. @xeni on Twitter. email: firstname.lastname@example.org.