Wow. Our experiment is off to a great start—let's see if we can finish it off sooner than expected.
Both Paul Krugman and Tyler Cowen recommend a new paper from Hyun Song Shin called "Global Banking Glut and Loan Risk Premium." If both of those guys say a paper is important, then it's probably pretty important. So I took a look. I'll confess up front that I had a hard time plowing through it, which means my summary might be off base a bit here and there, but here we go anyway. Roughly speaking, Shin says the following things:
Translated, this means that as sovereign debt woes get worse, bank woes get worse too. And as bank woes get worse, sovereign debt woes get worse. The result is a vicious circle that produces a big credit contraction, and since European banks have become so important as funding sources to the U.S., it means a big credit contraction in the U.S as well.
Tyler's comment: "If true we are doomed." On a separate note, Shin also points out that after the euro was introduced in 2000, cross-border claims within Europe skyrocketed. Unfortunately, banks themselves mostly stayed pretty local:
The introduction of the euro meant that “money” (i.e. bank liabilities) was free-ﬂowing across borders in the eurozone, but the asset side remained stubbornly local and immobile. It is this contrast between the free-ﬂowing liabilities but localized assets of European banks’ balance sheets that has been a key contributing factor in the European crisis.
In other words, wholesale funding flowed easily to wherever it would get the best return, but banks mostly kept their loan books local. This produced big property bubbles in Ireland and Spain and big current account imbalances across the entire continent. There's no easy way for this to unwind, and unfortunately, even the moderately difficult ways appear to be out of bounds to the eurozone's policymakers. If we really are doomed, it's partly because of bad policymaking during the aughts, but it's also because of disastrous policymaking right now. I wish I thought that Shin was wrong about this, but I suspect he's not.