"The MIT paper also documents the many ways in which the Iowa State authors mangle the basic economics of the oil industry, and it concludes that using better models suggests that the causal effects of ethanol on gas prices are "near zero and statistically insignificant." Something to remember when you see that next TV ad pushing ethanol as a free lunch."
http://online.wsj.com/article/SB10000872396390444184704577589812320819988.html
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