
A Stanford study reports that U.S. corn yields have risen overall thanks to new technologies and management, but the crop has become more sensitive to drought. The corn industry set record yields in five of the last seven years.
The study's lead author says the cost of bad weather is rising.
Growing drought sensitivity means bad seasons carry larger yield losses and higher input costs, a modest supportive factor for corn prices over time. It is a study of trends, not a current supply event.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.