With the BEA's release of the third and final (for now) GDP estimate for the fourth quarter of 2011, we can now project ahead and finalize our forecast of the size of the U.S. economy in the first quarter of 2012. Our accompanying chart shows what pure momentum mixed with some statistical analysis would project:
Our preferred "modified limo
" forecasting technique anticipates that inflation-adjusted GDP for the first quarter of 2012 will be reported to be approximately $13,508.8 billion constant 2005 U.S. dollars when the BEA records its third estimate of this quarter's GDP at the end of June 2012. The BEA will provide its first estimate for this quarter at the end of April 2012, and its second estimate near the end of May 2012.
To be more accurate in describing our forecast though, what we're really forecasting here is the level of real GDP in the U.S. for which there is a 50% chance of the actual recorded value of GDP being higher and a 50% chance of the actual recorded value of GDP being lower. We would be greatly surprised if we were dead on the mark!
Using statistics, we can give the following probabilities for where 2012-Q1's level of inflation-adjusted GDP will be recorded. All values below are given in terms of constant 2005 U.S. dollars:
- There is a 68.2% probability that we'll see GDP recorded between $13,367.4 billion and $13,650.1 billion.
- There is a 95.0% probability that we'll see GDP recorded between $13,226.0 billion and $13,791.5 billion.
- There is a 99.7% probability that we'll see GDP recorded between $13,084.7 billion and $13,932.9 billion.
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