
A Cato Institute viewpoint argues Mexico's GM corn import ban, decreed in December 2020, likely violates USMCA provisions on agriculture, SPS measures and market access. It notes Mexico is the top US corn export market and that more than 90 percent of US corn is genetically modified.
The ban threatens a major US corn export outlet, and the legal challenge could determine whether that demand is preserved. Continued uncertainty adds downside risk to corn export expectations.
After 310 past bearish policy events, Corn moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.6% 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.