TYLER COWEN, America’s Hottest Economist. “Cowen is still best known for the blog he shares with Alex Tabarrok, Marginal Revolution. The same survey listed Cowen and Tabarrok’s blog as the second-most popular on economics. Greg Mankiw’s eponymous blog at Harvard just edged it out; both picked up far more votes than Paul Krugman’s New York Times blog Conscience of a Liberal, which ranked third, or Freakonomics, at fifth. That’s among economists.”