Don't attack someone's reputation without basis. Tyler Cowen's an economist with if anything an excessively libertarian bias. If you have evidence he's been paid off by someone hoping a New York Times column arguing for more paid parking and less government-mandated free parking requirements for private business will generate public support for a parking tax scheme that wasn't even mentioned in the column to begin with, present it. (You'll need a lot of evidence, because it's a pretty ridiculous claim.)