Errata: The original version of this article incorrectly state the January 2018 soybean yield estimate at 50.6 BPA, instead of the true February (which made up for the delayed January report) estimate of 51.6 BPA. All statistics related to this yield estimate and charts/tables have been corrected below. USDA surprised the commodity markets on Friday with bullish adjustments to the U.S. corn and soybean balance sheets, particularly the unexpected reductions in yields for both commodities. The surprise created by the latest balance sheet makes it worthwhile to evaluate the USDA’s adjusted estimates relative to historical patterns. For this analysis, WPI uses the USDA’s yield, harvested acreage, and production forecasts as published in th...