My latest is up at Forbes right now. It is about the redundant nature of our current ethanol subsidy:
As many ethanol producers have argued – the gasoline blender and not the ethanol producer receives the subsidy anyway. The gasoline blender – ExxonMobil for instance – buys ethanol for $1.70 per gallon (currently), receives a tax credit worth $0.45 per gallon (the credit was reduced to that level in 2009), and then blends it into gasoline that is presently wholesaling at approximately $1.90 per gallon. With the tax credit, the current price of ethanol on an energy equivalent basis to gasoline is just about equal to the $1.90 wholesale price of gasoline. So the tax credit compensates the gasoline blender for blending in a higher cost feedstock.
But what if the tax credit was not there? Would ExxonMobil blend less ethanol? No, they are mandated to blend a certain amount, and if they fail to do so they are penalized. So in the event that they did not get the tax credit, then the energy equivalent price they would pay for ethanol would be about $2.50 per gallon (based on ethanol’s current spot price). At a 10% blend, this would mean that at current prices the price charged for a gallon of ethanol-blended-gasoline would need to rise about six cents to keep the gasoline blender’s costs equivalent to the cost they currently have with the tax credit in place. The only difference would be that the cost would then be borne directly by drivers in proportion to the number of miles they drive.
I also walk through the history of U.S. ethanol subsidies. If they haven’t served their purpose by now, they never will.