The side effects of quantitative easing are under fresh scrutiny.

October implementation of new rules for money funds will keep rate under upward pressure.

October implementation of new rules for money funds will keep rate under upward pressure.

Different countries implement Basel rules differently, according to a Fed paper.

Different countries implement Basel rules differently, according to a Fed paper.

Foreign demand helps U.S. corporate yields remain low.

Foreign demand helps U.S. corporate yields remain low.

Whichever rate succeeds Libor is also likely to replace fed funds.