Freakonomics » Where Have All the Hitchhikers Gone? A New Freakonomics Radio Podcast

Where have all the hitchhikers gone? That’s the question we ask in our latest podcast. Anyone who has been around long enough can observe that hitchhiking numbers have plummeted. So Freakonomics Radio set out to find the numbers on thumbers and found … well, not much. Apparently hitchhiking never qualified as an important-enough mode of the transportation sector to generate heavy-duty empirical research.

http://www.freakonomics.com/2011/10/10/where-have-all-the-hitchhikers-gone-a-new-freakonomics-radio-podcast/