The Chicago Mercantile Exchange (CME) Group arbitrarily sets margin requirements for oil, gold, and other materials. This has led to speculation and inside trading scandals. Currently the price of oil and gold is exaggerated due to speculation and fear.
This could be eliminated if the margin requirements were set by an executive order or by legislation that requires that the margin requirements change as the prices change. If the price goes up, then the margin requirements should also go up. This would slow volatility in these prices and prevent bubbles from bursting.
For more info on margin requirements and volatility see
http://www.ibtimes.com/articles/255563/20111124/silver-margin-requiremen...
For more info on solutions contact Sen Bernie Sanders.