Filed under: Uncategorized | Tags: efficiency, horsepower, Knittel, mpg, vehicle weight
From a paper by Christopher Knittel in American Economic Review (pdf).
http://web.mit.edu/newsoffice/2011/cars-on-steroids-0104.html
Since 1980, horsepower has more than doubled, and average weight has gone way up, so mpg gains have been largely canceled.
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