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The U.S. Economy in a Global Context


November  28, 2018


Congress faces challenges in formulating policies to foster
economic growth. The imbalance between federal spending
and revenues will continue and grow in the long run if
current policies are continued. This imbalance will lead to
unsustainable growth in the federal debt. Nevertheless,
deficit reduction that is too large can temporarily slow
economic growth.

Near Term Outlook
The economy  has recovered from the 2007-2009 recession
with a historically low level of unemployment (3.7% in
October 2018). The labor force participation rate of 62.8%
is at its trend level. It has declined over time largely due to
the aging of the population. The economy continues on a
growth path at an average rate of 2.2% from 2010 through
2017. Growth in the first and second quarters of 2018 was
2.2% and 4.5 % with a preliminary estimate of 3.5% for the
third quarter.

The Congressional Budget Office (CBO) estimates a
growth rate of 3.1% in 2018, with the higher growth rate
reflecting the increase in government spending, reductions
in taxes, and faster growth in investment. The Blue Chip
Forecast consensus is similar with a projected growth rate
of 2.9%.

Longer-Term Issues

Economic   Growth   and  the Debt
Growth  is expected to slow to trend in the future, with
recovery complete, transitory effects of the 2017 tax cuts
(P.L. 115-97) fading, and various moderating forces
including reductions in government spending, increases in
interest rates, and uncertainties about trade and trade policy.
CBO  projects a growth rate of 2.4% in 2019, slowing to an
average of around 1.6% to 1.7% from 2020 through 2028.
CBO's  projections are similar to those of private
forecasters.

In the longer run, economic growth depends on the growth
of the labor force, growth of human capital in the labor
force (which depends in part on the age distribution given
the importance of on-the-job training), growth of the capital
stock, and the rate of technological change. Federal
government policies have limited influence on the
magnitude of most of these variables. Technological
advance can be encouraged through grants and tax subsidies
but probably cannot be significantly affected. Although tax
cuts have often been aimed at encouraging savings and
investment, the most direct effect on the capital stock may
be through government dissaving (or increasing debt),
which crowds out private investment. This crowding out
effect is moderated by borrowing from abroad, but the
returns to that investment must be paid to foreign investors.


A more  fundamental issue with government debt is its
unsustainability given projected deficits. During the
recession and recovery, the debt grew from about 40% of
GDP  in FY2008  to 77% in FY2016 (the highest since
World War  II). Although the debt to GDP ratio stabilized in
FY2017,  it increased in FY2018 as revenues declined by
0.7% of GDP  following the 2017 tax cut. Spending
declined slightly by 0.2% of GDP for a net increase in the
deficit of 0.5% of GDP. CBO projects the debt to reach
96%  of GDP by FY2028,  118%  by FY2038, and 152%  by
FY2048.  This projection (which assumes spending
reductions and the expiration of the individual tax cuts
enacted in 2017) depicts an unsustainable path. The debt
can grow without increasing the ratio of debt to GDP as
long as it rises at a rate less than or equal to GDP growth.
For example, if the debt is 80% of GDP and the economy is
growing at 1.6%, a deficit of 1.28% of GDP (1.6% of 80%)
will maintain the debt to GDP ratio. The 2018 deficit is 4%
of GDP.

The debt is projected to grow in the future largely because
spending grows faster than revenues, due to long-
recognized issues, such as the aging population and
increased health care costs. Over the 30-year period (up to
FY2048),  Social Security is projected to grow from 4.9% of
GDP  to 6.3% and health spending is projected to grow from
5.2% to 9.2%, an increase of four percentage points, with
three-quarters of that increase due to Medicare. Moreover,
the compounding  debt also causes a rapid growth in interest
payments, which rise from 1.6% of GDP to 6.3%, an
increase of 4.7% of GDP. Other spending (including
defense and nondefense discretionary spending) is projected
to decline as a percentage of GDP, from 8.9% to 7.6%.

Revenues, after dropping to 16.6% of GDP in FY2018 due
to the tax cut, are projected to grow over time, reaching
19.8%  of GDP in FY2048. About a third of this increase is
due to the expiration of the individual income tax cuts and
the remainder largely due to real bracket creep in the
individual income tax, as payroll taxes, corporate taxes, and
other revenues remain relatively stable as a percentage of
GDP.

This long-term outlook for the debt might be considered by
some as optimistic given the difficulty of maintaining
spending cuts and the possibility of making the individual
tax cuts permanent. Moreover, were the economy to
encounter a recession, the increase in deficits (through
automatic stabilizers that reduce revenues and increase
spending as well as potential discretionary fiscal policy
stimulus) would add to the long-term debt.

The earlier measures are taken to address the debt, the less
difficult such measures will be, because interest payments


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