Rick Santorum Is Right: Gas Prices Caused the Great Recession

http://www.theatlantic.com/business/archive/2012/02/rick-santorum-is-right-gas-prices-caused-the-great-recession/252790/

In 2009, economist James Hamilton published a paper that retroactively forecast what an oil shock, like the one we experienced in 2007-08, would do to GDP. And guess what? His model accurately predicated much of the collapse in GDP that resulted from the Great Recession -- as if there had been no housing bubble or financial crisis! The oil spike was that bad.

Still, there was a housing bubble. And there was a financial crisis. How do we account for them and still hold onto the gas story? Here's a one-paragraph theory of the Great Recession that begins with gasoline. Cheap gas ruled in the 1990s. This encouraged families to settle down farther from the cities where they worked. In the 2000s, super-low interest rates, declining lending standards, and an appetite for mortgages on Wall Street (among other factors) further encouraged sprawl and residential development in the 'burbs. As the price of gas went up, families stopped buying homes 30 minutes from the city. For folks shacking up in the exurbs, higher gas bills ate into mortgage money. For companies, higher energy bills shocked productivity. Classic oil-shock + housing development arrested + financial crisis = Great Recession.

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