For those unfamiliar, there's an excellent Planet Money episode on how trading onion futures got banned in the 50s. https://www.npr.org/sections/money/2015/10/

For those unfamiliar, there's an excellent Planet Money episode on how trading onion futures got banned in the 50s. https://www.npr.org/sections/money/2015/10/14/448718171/episode-657-the-tale-of-the-onion-king https://www.npr.org/sections/money/2015/10/14/448718171/epis...