With economies recovering from the crisis, the robots who make up much of
the economics profession are calling for or contemplating a rise in interest
rates. E.g. see here.
Their basic reason being that central banks have always aimed for a positive
rate, ergo they always should. Likewise ancient Egyptians doubtless also arged
that Kings and Queens have always been buried in million ton pyramids, therefor
they always should be. Similar robotic behavior is found in all cultures of
course.
A permanent zero rate was advocated by Warren Mosler – see 2nd
last paragraph here.
I assume other MMTers think likewise, though I might be wrong there.
Anyway the actual arguments for a permanent zero rate are as follows.
Household spending is related to how large a stock of money households
have: e.g. when people win a lottery their weekly spending rises (revelation of
the century that, wasn’t it?). Or to be more accurate, aggregate spending is
related to what MMTers call “Private Sector Net Financial Assets” (PSNFA). And
the latter is made up of base money plus national debt.
Those two, base money and national debt are actually very similar: at
least they merge into each other. That is, there is no effective difference
between short term debt that pays a near zero rate of interest and base money.
Commercial bank created money, in contrast, is not a “net asset” because
for every dollar of such money there is an equal and opposite debt. That is
commercial bank created money nets to nothing.
To summarise so far, spending is positively related to PSNFA. Thus one way
of regulating demand would be to regulate the amount of PSNFA.
But another possibility would be to have too large a stock of PSNFA while
inducing the private sector not to spend it to the extent that they otherwise
would by having government pay interest to PSNFA holders in exchange for
lending to government, or “lodging PSNFA” with government to put it another
way.
But what’s the point of that? I.e. what’s the point of so to speak
distributing Monopoly money to the population and then inducing them not to spend it by having them
lend it back to government? That is totally insane.
That is not to say that interest rate hikes should never be used to damp
down demand (especially in emergencies). But certainly, the long term objective
should always be a zero rate.
But even the latter use of interest rates in an emergency is debatable in
that the evidence seems to be that interest rate adjustments have little
effect. See here
and here.
But of course pyramid builders, economists and other robots don’t like
empirical evidence that contradicts their long held beliefs.