Chip in, make a $25 pledge. You won't be billed unless Krugman actually accepts the debate.
My Debate Challenge to Paul Krugman
The problem is, he'd have to actually know what is in the Austrian Theory, which based on his public statements he doesn't.
Quote: As many readers already know, last week I launched a campaign to pressure Paul Krugman into debating me. In just the first week, this sophomoric 7-minute YouTube video has generated $35,000 in pledges. At this point, I don't see how Krugman will ever live this down until he debates me on Austrian versus Keynesian business-cycle theory.