In light of the recently passed 2010 Dodd-Frank Act, we assess the effect of margin changes on prices, the risk-sharing between speculators and hedgers, and the price stability of 20 commodity futures markets. We find that margin increases decrease the rate at which prices change, yet they...

We study momentum and mean-reversion strategies in commodity futures prices and their relationship to momentum and mean-reversion in commodity spot prices. We find that momentum performs well in futures markets, but not in spot markets, and that mean-reversion performs well in spot markets, but...