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Mainstream economists and the mainstream media continue to embrace John Maynard
Keynes' notion of the "paradox of thrift." While most economists subscribe
to the view that the pace of long-run economic growth is a function of productivity
and thrift (saving), short-run growth can be retarded by too much thrift. According
to this view, if households in the aggregate decide to cut back on their current
spending, i.e., save more, aggregate economic demand will be negatively affected.
Hence, the paradox of thrift. A little later in this commentary, I will try
to dispel the notion that thrift retards growth in aggregate demand in the
short run.
But before getting into this aspect of economic myth-busting, I want to call
your attention to a February 19th WSJ opinion article by a member of
the paper's editorial staff, Daniel Henninger, entitled "Obama's
'Hair of the Dog' Stimulus." Henninger essentially buys into the paradox-of-thrift
argument. He cites the "Making Work Pay" element of the new fiscal stimulus
plan as a way of giving a tax rebate to households with a lower probability
that the tax reduction will be saved. Again, according to Henninger, an increase
in saving would mute the stimulative effects of the new fiscal program. Is
Henninger actually endorsing an economic plan that does not include reductions
in marginal tax rates? Not to worry. He falls into line with The Journal's
monolithic editorial view that any stimulus plan devoid of marginal tax rate
reductions is bound to fail in igniting aggregate demand because American households
have rediscovered the virtue of thrift. To buttress his case, Mr. Henninger
cites an authority on the subject of women's marginal propensity to consume/save,
Anna Wintour, the editor of Vogue. Ms. Wintour's sampling, scientific,
no doubt, suggests that ladies of leisure will be cutting back on their current
spending. (To be complete, perhaps Mr. Henninger should have consulted Playboy's
octogenarian playboy, Hugh Hefner, as to what we men will be doing with our
extra eight dollars a paycheck.) Moreover, Mr. Henninger says that President
Obama has met the enemy of household spending and it is the president himself.
You see, President Obama has an "austere persona" that evidently promotes household
austerity! I found it paradoxical that anyone on the editorial board of The
Journal would embrace anything Keynesian such as the paradox of thrift.
Hence the title of this commentary, "Paradox Squared."
Let's get economically objective. Thrift or saving does not necessarily mute
aggregate demand in the short run or the long run. As any economist of the
Austrian school will tell you, saving simply implies one economic agent cutting
back on its current spending and transferring its spending power to
another economic entity. For example, suppose a household decides to cut back
on its current spending in order to purchase an about-to-be issued corporate
bond. The household is transferring its purchasing power to the corporation.
Presumably, the corporation does not intend to simply sit on the proceeds of
its bond sale. Rather, the corporation likely borrowed funds in order to spend
now on some capital equipment or R&D. So, the act of increasing its
saving on the part of the household does not lead to a reduction in
aggregate spending in the economy, just a redistribution of spending.
There is, however, a special case in which an increase in thrift will result
in a fall in aggregate spending. This is the case of "hoarding" money - currency
and bank deposits. Hoarding in this sense is the term classical economists
used to describe what hip-hop economists refer to as an increase in the demand
for money to hold, or a decrease in the velocity of money. If
more and more households wish to curtail their current spending and increase
their money balances, this will lead to a decline in aggregate spending in
the short run if the supply of money is not increased commensurate with
the increased demand for it to hold. The supply of money is created by the new lending
actions of banks in cooperation with the central bank, the Fed in the U.S.
case. An increased demand for money to hold does not automatically
elicit an increase in the supply of money. Let's say that an employee
of XYZ Company decides to save a larger portion of her paycheck in the form
of increased money balances. On payday, XYZ transfers into the employee's bank
account the employee's salary. So, XYZ's bank account is debited by the same
amount that the employee's bank account is credited. No new money is
created in this process. All that has happened is that the ownership of
money has changed. No net new bank credit is created in this process.
Although the employee's bank has gained some additional reserves in the process
that would enable it to create some new credit, XYZ's bank has lost reserves,
requiring it to extinguish credit, all else the same. Aggregate spending does
decrease because the employee cuts back on her spending in order to increase
her money balances.
So, the paradox of thrift, which mainstream economists and Mr. Henninger so
readily embrace, is only paradoxical in the special case in which the public's
demand for money to hold increases. How do these economists and Mr. Henninger
know ahead of time that tax rebates will be accompanied by an increased demand
for money to hold on the part of households? Even if the demand for money to
hold does increase, I can make an argument that the supply of money
available to be held is likely to increase. The Treasury is going to
issue securities to finance its new spending and tax rebate programs. If, which
is likely, banks and the Fed purchase a large quantity of these Treasury securities,
then the supply of money will increase. An increased demand for money to
hold matched by an increased supply will not lead to a decrease in aggregate
spending.
There is one other tangential economic myth that I would like to bust - that
the U.S. economy cannot grow rapidly unless there is a high level of consumer
spending. I would ask you to turn your attention to the chart below. The line
in the chart is the five-year moving average of the ratio (in percentage terms)
of real personal consumption expenditures to real GDP. The bars are the five-year
compound annual rates of growth in real GDP excluding federal government expenditures.
Notice that in recent years, the consumption ratio has moved up significantly.
Notice also that the real GDP growth rate has moved down significantly. The
most rapid real GDP growth we experienced in the 1951 through 2008 period occurred
in the 1960s, a period when the consumption ratio was relatively low. My
bet is that when we come out of this current deep recession (Q4:2009?), the
recovery and expansion will be accompanied by a much lower consumption ratio
than we have experienced in recent years and higher export and business capital
spending ratios than we have experienced in recent years. But most importantly,
I expect that these changing ratios will be accompanied by higher growth in
real GDP ex federal government than we have experienced in recent years. Why?
Because, as I stated at the outset, the pace of economic growth is a function
of productivity and thrift. And no less an authority than the editor of Vogue says
that thrift is in vogue again!
Chart 1

Paul Kasriel is the recipient of the
2006 Lawrence R. Klein Award for Blue Chip Forecasting Accuracy
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