Earlier this week (see WPI 11 December) we wrote that the potential reinstatement of the biodiesel blenders' tax credit could impact Brazilian sugar ethanol imports into the United States. Today we look at the Brazilian ethanol industry's problems maintaining its profitability.Ethanol producers in the United States sell their product to be blended with gasoline that is privately refined and marketed. In Brazil, however, ethanol makers deal with a government-owned entity, Petrobras. Unlike private oil companies that want to maximize their profits, Petrobras wants stable prices at the pump to keep taxpayers happy. There is in fact a cap on gas prices that Petrobras subsidizes. This cap comes at a cost to both Petrobras and cane ethanol refi...