Stango and fellow economics professor Christopher Knittel studied the stock market for 13 days after Woods crashed his car outside his Florida home on November 27.

Stango和同事克里斯托弗·尼特尔经济学教授研究了13天的股市崩溃后，老虎伍兹在佛罗里达的家外面11月27日他的车。

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Knittel and his colleagues acknowledge there are other ways to measure these businesses, but conclude that most competing definitions tell roughly the same story they do.

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The graph below, from Christopher Knittel, shows that we have the lowest gas taxes in the OECD by a long shot, and, perhaps unsurprisingly, have the highest per capita usage as well.

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