Lessons

“Export restrictions amplified a crisis driven by low tradable stocks, strong demand, input costs, importer stock-building, and thin trade — the bans were the accelerant, not the whole fire.”

“Russia's ten-month grain ban moved wheat prices only until competitors filled the gap — in this episode. Wheat ended the ban cheaper than the pre-announcement Jul 2010 month-end reading.”

“A three-week export ban coincided with a 40.5% palm-oil move — but the Mar→Jul window spans the broader vegetable-oil correction, so timing alone does not prove the ban caused the collapse. What the ban verifiably did: trap stocks at home, anger farmers, and force Indonesia to discount to win back the buyers Malaysia had taken.”

“The world's largest rice exporter banned its biggest export category for 14 months — and CBOT rough-rice (ZR=F) futures ended the ban essentially flat (−1.2%). Grades, exemptions, and competitors absorbed it.”

“Houthi attacks rerouted a third of Red Sea container traffic and roughly halved Suez trade — and grain prices fell anyway on record supply. The freight shock lived in shipping rates, not commodity prices.”

“A 400m ship blocked Suez for six days and 400+ vessels queued — oil wobbled $2.60 and reversed, and no verifiable agricultural price reaction followed. A timing shock, not a supply shock. Kept in the dataset only as an explicitly limited non-attribution case.”

“Drought trimmed Brazil's crop — but near-empty warehouses turned a bad harvest into a 14-month rally that nearly doubled arabica. When inventories are thin, weather gets priced twice.”

“The sharpest single-season corn shock on record sent CBOT corn futures up more than a fifth in six months — then a normal 2013 season erased the entire spike within a year. Weather moves the price; the next harvest moves it back.”

“Three straight deficits — dry weather, disease, and years of underinvestment — repriced cocoa more than fourfold in under two years. Then high prices did what high prices do: grindings fell, supply recovered, and a third of the peak vanished in a quarter.”

“El Niño moves the weather, not always the price. In 2015–16 wheat fell sharply but tracked outcomes were mixed (rice +7.7%, soy +2.1%) while sugar spiked — fear the mechanism, measure the outcome.”

“A real Black Sea supply shock — Ukrainian exports stopped, fertilizer spiked — and the price spike faded over months as other exporters filled the gap, demand rationed, and Russia's own record crop arrived. This episode only: one case, not a rule about shocks.”

“The headline exit rallied wheat briefly, then ample supply and alternative routes dominated: wheat -14.9% two months later. The exit was telegraphed for months — inspections had already slowed and some buyers had pre-positioned (Rabobank) — and Russia harvested a record crop instead of weaponizing supply. Observed in this episode; not a rule about exits.”

“The June 2025 Twelve-Day War spiked urea prices and briefly bounced grains on risk pricing — then grains fell below pre-conflict levels. A fertilizer-cost shock, not an ag-price event.”