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Thursday, May 08, 2008

Feldstein thinks recent GDP growth number misleading

Martin Feldstein writes in the Financial Times: Misleading growth statistics give false comfort
Prepositions matter. The recent government report that US gross domestic product increased 0.6 per cent in the first quarter was very misleading. It implied that economic activity was rising in January, February and March. But the increase actually refers to the rise from the average level in the fourth quarter of 2007 to the average level in the first quarter. Monthly data since January indicate that economic activity and GDP have been declining since the start of this year.
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Although the government does not provide monthly estimates of GDP, Macroeconomic Advisers, a private forecaster, constructs them ... Although GDP declined during the first quarter, the average of the monthly figures in the first quarter ($11,711bn) is higher than the average of the monthly figures for the final quarter of 2007 ($11,675bn).