Question: In January 2003, the late Professor David Brad-ford told a New York Times reporter that a consumption tax discourages work effort. Shortly thereafter, he received the following e-mail: "Since when is a tax on consumption a disincentive to work? This son of specious reasooiog ran amok in this ankle. I laughed as I saw it was labeled; Economic Analysis:" Who was comet, Professor Bradford or his correspondent? Justify your answer using either an arithmetic or algebraic argument. [Hintz Bradford was right.]