(Marketwatch) Even for a market known to fall asleep over the summer, trading in the Treasury has gone quiet as the Federal Reserve asserts its intent to keep interest rates at zero for a long time. The potential for interest rates to move anytime soon looks increasingly diminished as analysts warn it may take several years for economic activity to mount a full recovery to pre-coronavirus levels. That has discouraged speculation in the world’s biggest bond market, with more traders complaining that the chance to make profits on swings in government bond yields have waned.