negative interest rates

A Bright, Flashing Warning Sign

Imagine for a moment that some salesman offered you a deal.
They are willing to let you loan them money, and would only charge you a nominal fee plus a small rate of interest for the transaction.

In a sane world your answer would either be either, "Uh, no" or you would laugh in their face, depending on your mood at the time.
Pay to loan money?!? That's insane. Not just insane, illogical.

Deflation, negative interest rates and the derivatives mountain

In a press conference last week, Fed Chair Janet Yellen was asked about negative interest rates. Yellen dismissed the possibility, but also said if "we found ourselves with a weak economy that needed additional stimulus, we would look at all of our available tools, and [a negative rate] would be something that we would evaluate in that kind of context."