One dumb government intervention in energy markets typically begets another, as special interests lobby to counteract the unintended (although not unforeseen) consequences of some previous intervention they championed. The federal ethanol mandate, also known as the renewable fuel standard (RFS), provides a recent example.
Thanks to this Soviet-style production quota system, which Congress created in 2005 and expanded in 2007, daily corn ethanol production in February increased by about 17,000 barrels to 647,000 barrels per day, despite weak motor-fuel demand and poor to negative profit margins for ethanol producers.
Unsurprisingly, inventories of unsold ethanol increased by 1.5 million barrels in February and about 20% of new capacity added last year is idle. An ethanol glut is one of the factors that have bankrupted several ethanol companies. Other factors include high feedstock (corn) prices in 2008–itself a consequence of the mandate—and the collapse of crude oil and gasoline prices in 2009.…