Willaim Charles Simpson
Forecast Lag Measurements


GDP for 1983 to '89


GDP for 1983 to '89
Figures are in Billions of Dollars. Growth factor used is year to year net change. Lag happens when actuals divided the sliding projections are equal to or greater than 100%. Source: US Bureau of Economic Analysis.
Note: These are *NOT* the time conversions.

year gdp prev nc proj lay y0 lag y1 lag y2 lay y3
1983 3514.5              
1984 3902.4 3514.5 387.9 4290.3 81.9%      
1985 4180.7 3902.4 278.3 4459.0 87.5% 91.0%    
1986 4422.2 4180.7 241.5 4663.7 89.6% 93.8% 97.4%  
1987 4692.3 4422.2 270.1 4962.4 89.1% 94.8% 99.2% 103.1%
1988 5049.6 4692.3 357.3 5406.9 86.8% 94.6% 100.6% 105.2%
1989 5438.7 5049.6 389.1 5827.8 86.6% 93.4% 101.8% 108.3%


Last Updated on 2/19/99
By WC Simpson



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