Business and economic forecasts that are past their shelf life, such as GDP forecasts for the year 2010 made in the year 2008, might seem to be of little value. But business researchers examine old forecasts to test their accuracy or to better understand the economic climate of a period. It is well known that forecasters almost universally missed predicting the “Great Recession” business decline of 2008/2009. For example, The Economist’s Poll of Forecasters for Jan 12, 2008 (pg. 89) predicted that U.S. GDP would increase 1.8% in 2008 and 2.6% in 2009. GDP actually fell slightly in 2008 and was down 2.8% in 2009.
Here are some sources of historical forecasts that will let you exercise 20/20 hindsight.