Reading the Reason debate between Brink Lindsey, Jonah Goldberg, and Matt Kibbe inspired me to rank how productive I find conservations with the following groups.  #1 = “most productive”; #6 = “least productive”:

1. Libertarian economists
2. Conservative economists
3. Libertarian non-economists
4. Liberal economists
5. Conservative non-economists
6. Liberal non-economists

Somehow I think Matt Yglesias won’t like my ranking, but there it is.  Yours?