What this means is that a contraction of the balance sheets of European banks can easily translate into a contraction of credit for U.S. borrowers and a reduction in borrowing — and therefore interest income — for customers of US money market funds. European banks that need to shrink their balance sheets will buy fewer U.S. financial assets, which leaves less room for U.S. banks to make loans since their aren't ready secondary market buyers.
Since European banks aren't buying U.S. financial assets, their demand for dollar borrowings from money market funds declines.
Here’s how Shin concludes his paper:
"The European crisis carries the hallmarks of a classic 'twin crisis' that combines a banking crisis with an asset market decline that amplifies banking distress. In the emerging market twin crises of the 1990s, the banking crisis was intertwined with a currency crisis. In the European crisis of 2011, the twin crisis combines a banking crisis with a sovereign debt crisis, where the mark-to-market amplification of ?nancial distress interacts to worsen the banking crisis.
The global ?ow of funds perspective suggests that the European crisis of 2011 and the associated deleveraging of the European global banks will have far reaching implications not only for the euro zone, but also for credit supply conditions in the United States and capital ?ows to the emerging economies."
That’s a very sober way of saying that Europe’s banking crisis is very likely to produce a credit crunch on this side of the Atlantic Ocean.
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