Economists enjoy the sense of security provided by the “National Income Accounts” where Gross Domestic Product, the value of all goods and services produced domestically, is always equal, by definition, to Consumption plus Investments plus Government plus Net Exports.  Reviewing the changes in the share of economic activity in the components of C+I+G+NX goes a long way towards explaining our current and future economic predicament.  The economy has changed dramatically since 1960. which will serve as a baseline for the post-war era.

During the bright days of Camelot, Consumption was 63%, Investment 15%, Government 21% and Net Exports +1%.  In 2008, Consumption was 70%, Investment 15%, Government 20% and Net Exports -5%.  In simplest terms, we are consuming 7% more thanks to the generosity of other exporting nations! 

Investment averages 16% of GDP: 11% business and 5% residential.  Business investment has reached peaks of 12-13% in 1978-85, 1998-2001 and 2007-08.  It experienced troughs of 9-10% in 1960-64, 1991-93, and 2003-04.  Business investment responds to tax and market opportunities, adding a pro-cyclical boost to the recovery.  Residential real estate follows its own pattern, reaching 5-6% peaks in 1962-64, 1972-73, 1977-79, and 2004-06, alternating with 3-4% troughs in 1966-67, 1975, 1981-82, 1990-93, and 2008.  The 3.3% share in 2008 is the lowest in the period, followed by an even lower share in 2009.  Residential real estate experienced an unprecedented 13 year run without a down cycle.  The over expansion in 2004-2006 means that the usual residential real estate recovery will be delayed for a few years.

Government consumption expenditures, excluding transfer payments, declined from 21% to 20% of GDP across the period.  Direct federal government, non-defense expenditures remained flat and immaterial at 2.5%.  National defense started at a high 10% in 1960 and remained at that level as late as 1968 before declining after the Vietnam conflict wound down.  The peace dividend allowed defense spending to fall to 6% for 1977-80.  Defense spending rose again in the waning years of the Cold War, reaching 7.4% in 1985-87, before sliding to as low as 3.8% from 1998-2001.  The terrorist response has triggered an increase to 5.1% of GDP by 2008.  Delivering the “Great Society” initiatives, state and local government spending grew from 9.5% in 1961-63 to 12.5% in 1974-76.  State and local government declined to 11% in 1983-85, remaining at 11.3% as late as 1998 before growing to 12.2% in 2002-03.  State and local government spending will act as a drag on the economy for at least 2 years.  Defense spending shows no clear trend.  Federal government spending on stimulus measures may be 3-5% of GDP in 2010.  The expected decline in stimulus spending will act as a drag on the economy in 2011.

Across 50 years the United States rejoined the world economy after the unusual post-war period of self-sufficiency and high global demand for U.S. goods.  Exports of services tripled from 1.3% to 3.9% of GDP in this period.  Exports of goods doubled from 4% to 8%, reaching 8.8% in 2008.  Total exports increased from 5% to 13% of GDP.  On the other hand, service imports doubled from 1.4% to 2.9%.  Goods imports increased five-fold, from 3% to 15% of GDP.  This 12% of GDP change has outpaced the growth in exports. 

A 2-3% trade deficit was experienced from 1984-88.  The competitive response reduced the deficit to an average of 1% for the next decade.  The deficit rapidly grew to 4% in 2000 and a high of 5.7% in 2005-06.  As pundits have noted, no nation has ever been able to run a 5% trade deficit for decades.  The unique situation of the US as the world’s currency and safest investment home, plus the growth of China’s economy and its willingness to finance the trade deficit has allowed this to continue.  In the long-run, the US dollar will fall relative to China’s currency and trade will rebalance.  There is no way to predict the timing of this change.  For a decade, the U.S. has consumed 5% more than it produced.  Consumption will fall.

Consumption is the 800 pound gorilla of GDP accounting.  Its rise from 63% to 70% of GDP is the counterbalance to the trade deficit.  Durable goods production held its own, maintaining 9% of GDP through 2003, before falling to 7.6% as the auto recession began in 2008.  Non-durable goods production dropped from 25% to 16% of GDP by 1995 and maintaining that level through 2008.  The 9% decline in non-durable goods production has been replaced by an increase in services from 30% to 47% of the economy. 

The service share was 30% as recently as 1969, so this 17% switch occurred in just 40 years.  The service share reached 45% in 2001 and has inched up slowly since then, reflecting the “jobless recovery” of the 2000’s.  Durable goods production will recover from its low level as autos and equipment age.  The trend in non-durable goods moving to import sources is likely to continue.  Without changes in the health care industry, this part of services is likely to keep growing: a short-term benefit for jobs and GDP.

Government budget, trade and savings deficits need to be repaid.  The retiring Baby Boomers need to be replaced in the labor force at high productivity rates.  Some form of improved health care market, incentives or rationing is required to limit the growth of this sector.  The U.S. has significant economic challenges to be faced.  The transition from Keynesian fiscal stimulus and easy money to a sustainable course is a necessary first step.  U.S. economic productivity, competitiveness and innovation have not been undermined by the Great Recession.  The business cycle provides a natural boost to recovery from inventory replenishment, capital spending and durable goods demand as we are already seeing.  Let’s hope that the president can have a real meeting of the minds with Congress and begin to address the long-term structural challenges faced by the country that go far beyond the 2010 and 2012 elections.