*See the navigation bar at the right side of the technical note text for supplementary materials.

Technical Note
Gross Domestic Product
Second Quarter of 2010 (Second Estimate)
August 27, 2010
This technical note provides background information about the source data and estimating methods used to
produce the estimates presented in the GDP news release.  The complete set of estimates for the second
quarter is available on BEA's Web site at www.bea.gov; a brief summary of "highlights" is also posted on
the Web site.  In a few weeks, the estimates will be published in BEA's monthly journal, the Survey of
Current Business, along with a more detailed analysis of the estimates ("GDP and the Economy").

Sources of Revision to Real GDP

Real GDP increased 1.6 percent (annual rate) in the second quarter (that is, from the first quarter to
the second), which was 0.8 percentage point less than last month’s estimate.  The downward revision to
GDP reflected an upward revision to imports and downward revisions to inventory investment and to exports
that were partly offset by an upward revision to consumer spending:

  *       The upward revision to imports reflected newly available Census goods data for June.
  *       The downward revision to inventory investment primarily reflected a downward revision to
          manufacturing inventories that was partly offset by an upward revision to mining, utilities, and
          construction inventories.  The revision to manufacturing inventories reflected newly available
          Census manufacturing inventory data for June and revised data for May.  The revision to mining,
          utilities, and construction inventories reflected newly available Census Quarterly Financial
          Report data on mining and newly available natural gas, coal, and petroleum stocks data from the
          Energy Information Administration (EIA).
  *       The downward revision to exports reflected newly available Census goods data for June.
  *       The upward revision to consumer spending primarily reflected newly available and revised
          electricity and natural gas usage and unit value data from EIA.

The price index for gross domestic purchases increased 0.1 percent in the second quarter, unrevised from
the advance estimate.

Corporate Profits

Profits from current production increased $72.7 billion, or 4.6 percent (quarterly rate), in the second
quarter, after increasing $148.4 billion, or 10.5 percent, in the first.

Revisions to Wages and Salaries and Disposable Personal Income

In addition to presenting revised estimates for the second quarter, today's release also presents revised
estimates of first-quarter wages and salaries, personal taxes, and contributions for government social
insurance.  Wage and salary disbursements are now estimated to have increased $6.5 billion in the first
quarter, a downward revision of $12.3 billion.  The estimates reflect newly available wage and salary
tabulations for the first quarter from the Bureau of Labor Statistics (BLS) quarterly census of employment
and wages.  (Last month’s advance estimate of wages and salaries reflected BLS wage and salary tabulations
for 16 states.)  These tabulations are more comprehensive than the monthly employment and earnings data
that were used for the earlier estimates--they include the pay of supervisors and irregular pay, such as
bonuses and gains from the exercise of stock options.

Real disposable personal income is now estimated to have increased 1.3 percent in the first quarter and
to have increased 4.4 percent in the second quarter.  (The estimates that were available last month showed
an increase of 1.7 percent in the first quarter and also an increase of 4.4 percent in the second.)


Carol E. Moylan
Chief, National Income and Wealth Division
Bureau of Economic Analysis
(202) 606-9711