The collapse of financial globalization …

http://blogs.cfr.org/setser/2008/12/29/the-collapse-of-financial-globalization/ Private capital inflows to the US and private capital outflows from the US have collapsed. They have gone from a peak of around 15% of US GDP to around zero in a remarkably short period of time
But even if “private” Treasury purchases since mid-2007 are counted there still would have been a stunning fall in private capital flows. Direct investment flows have continued. Other financial flows though have largely gone in reverse, with investors selling what they previously bought. In the third quarter foreign investors sold about $90b of US securities (excluding Treasuries) and Americans sold about $85 billion of foreign securities. And the reversal in bank flows on both sides (as past loans have been called) has been absolutely brutal.
Note how closely gross inflows and gross outflows move together in the graph
Think of the process this way. Suppose a US bank lends a billion dollars to a bank in London that lends that money to a hedge fund domiciled the Caribbean that buys a billion dollars of US securities. That chain results in an outflow and inflow, but the outflow just financed the inflow — it doesn’t help to finance the current account deficit. By contrast, China’s purchases of Treasuries and Agencies reflect in large part China’s current account surplus — not Chinese banks borrowing from US banks. They certainly help to finance the US current account deficit
It was a largely unregulated system. And it was largely offshore, at least legally. SIVs and the like were set up in London. They borrowed short-term from US banks and money market funds to buyer longer-term assets, generating a lot of cross border flows but little net financing. European banks that had a large dollar book seem to have been doing much the same thing.** The growth of the shadow banking system consequently resulted in a big increase in gross private capital outflows and gross private capital inflows