Improving GDP Measurement: a Forecast Combination Perspective
30 Pages Posted: 21 Sep 2011 Last revised: 6 Feb 2023
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Improving GDP Measurement: A Forecast Combination Perspective
Improving GDP Measurement: a Forecast Combination Perspective
Improving GDP Measurement: A Forecast Combination Perspective
Date Written: September 2011
Abstract
Two often-divergent U.S. GDP estimates are available, a widely-used expenditure side version, GDPE, and a much less widely-used income-side version GDPI . We propose and explore a "forecast combination" approach to combining them. We then put the theory to work, producing a superior combined estimate of GDP growth for the U.S., GDPC. We compare GDPC to GDPE and GDPI , with particular attention to behavior over the business cycle. We discuss several variations and extensions.
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