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Rather, the committee determined only that the recession ended and a recovery began in that month.
The Committee applies its judgment based on the above definitions of recessions and expansions and has no fixed rule to determine whether a contraction is only a short interruption of an expansion, or an expansion is only a short interruption of a contraction.
The committee waited to make its decision until revisions in the National Income and Product Accounts, released on July 30 and August 27, 2010, clarified the 2009 time path of the two broadest measures of economic activity, real Gross Domestic Product (real GDP) and real Gross Domestic Income (real GDI).
The committee noted that in the most recent data, for the second quarter of 2010, the average of real GDP and real GDI was 3.1 percent above its low in the second quarter of 2009 but remained 1.3 percent below the previous peak which was reached in the fourth quarter of 2007.
Further, macroeconomic indicators are subject to substantial revisions and measurement error.
For these reasons, the committee refers to a variety of monthly indicators to choose the months of peaks and troughs.