Paul Glastris pointed out to me that there had been a recent article on the very subject of taxis and libertarians (sort of)—Megan McArdle’s piece in the May issue of The Atlantic, where she focuses on a DC upstart company called Uber that is trying to address all that is terrible about cab service in the capital. (It’s costly, though—the average fare is about 50% higher than a standard cab fare.)
McArdle is a popular target for criticism, and not always unfairly, but her piece has some useful information about some of the regulatory factors that drag down cab service (like, for example, million-dollar medallions in New York).