There is a saying, “If you must forecast, forecast often”. September is back on the table and a few are discussing October:
Calculated Risk quotes the WSJ: Calculated Risk: Sunday Night Futures
Tim Duy quotes a bunch of FOMC inflation hawks: http://economistsview.typepad.com/timduy/2015/08/hawkish-rumblings-.html
Tim Duy: Bottom Line: The Fed doesn’t want to take September off the table. Many officials had what they believed was a solid case for hiking rates at the next meeting, and they don’t want market turmoil to undermine that case. And that case is not complicated. It’s the Phillip curve combined with an estimate of full employment (an estimate of full employment that remains sticky despite the persistent downtrend in inflation). If they move in September, that’s the story they will run with. They don’t have another paradigm. Hm. Maybe Duy is politely wondering whether some of these hawks are expressing derp. That is a little unfair on my part though.
My bottom line: core inflation of 1.2% is risky: a negative shock could take us into deflationary territory. That would be less of a problem if the dose-response relationship between the economy and unconventional monetary policy were established, well understood and of sufficient magnitude. But none of this is necessarily the case. Inflation hawkishness can be irresponsible.
In addition to expectations, excess reserves are consistent with basically any interest rate. Banks may choose to keep some of their assets in the form of cash for safety considerations. Admittedly 3 month treasuries essentially only have interest rate risk.
Secondly, if excess reserves are truly just taking up space (which would be different than their role during the great depression, when banks kept them because they were nervous) exchanging them for t-bills wouldn’t be a big deal. I don’t see the problem.
Back during the 1930s the Fed perceived the skyrocketing excess reserves as a concern: they thought they might lose control of monetary policy. When they bought some of them back, they discovered that rates increased: the excess reserves were actually playing a role.
Off topic but supply side factors loom in the background of discussions like this. One wonders whether great investment opportunities have dried up, or rather that they have been displaced by stock buybacks and other methods of juicing executive pay. No doubt that a heated economy produces hotter money though, to use your metaphor.