Indonesia put the turd in the punch bowl this week and caused vegetable oil futures to rocket to record highs. Its export embargo of palm oil is temporary and reflects domestic politics and supply chain inflexibilities but, in conjunction with the war in Ukraine, it is having a huge adverse global impact.  Trade Policy India and Argentina are two countries adept at using border measures to manipulate supply/demand situations and now India wants a long-term supply contract with Argentina and is urging Buenos Aires to end its 30 percent export duty on sunflower oil. In exchange, Delhi will give concessions on its import duty. Argentina is unlikely to concede to the proposal since the yield on its recent sunflower crop was 5 percent bel...