My wunderkind colleague (and former student) Pete Leeson kicks off his first day at Freakonomics with reflections on the Bigfoot/UFO correlation:
States with more U.F.O. sightings also have more Bigfoot sightings. In fact, six of the top ten U.F.O. and Bigfoot states are the same: Washington, Oregon, New Mexico, Alaska, Wyoming, and Colorado. Two states, Washington and Oregon, are among both categories’ top five.
If you’re like many people, you may think it’s at least possible, though perhaps very unlikely, that U.F.O.’s are real. When it comes to Bigfoot, on the other hand, you’re quite certain he’s not real. If this is you, how should the pattern in this figure influence your beliefs?
Here's Leeson's webpage, and his c.v.Here's Pete debating Dani Rodrik, among others. And don't forget to look for his forthcoming book with Princeton University Press - an economic history of piracy called... The Invisible Hook!