Additional Source

An additional source of information on how low the 3-month U.S. Treasury Bill rate has declined is Yahoo finance:

http://finance.yahoo.com/bonds

In the event that negative interest rates come into vogue, then this will have the effect of cutting off speculation in the markets.

The dependancy on short term money markets has become huge with the advent of QE I + II, so what this means is that most if not all of the money sloshing around the system has pooled into very short term agreements.

There is probably no way for negative interest rates to be avoided, even if the Fed attempts to withdraw liquidity from the markets.(remains to be seen.) At least some of the market advance is due to a wide spectrum of first selling assets that you do not own, and having to settle. This bumps against the real short interest in the markets and has repeated ad nauseum for two years.

-F6