Here is the beginning and end of a (much longer) Q&A with Gary Gorton discussing the financial crisis. He explains how the crisis was generated by a bank run much like past bank runs, but in a different type of asset and in a different segment of the banking system.
Rather than a run by individual depositors on demand deposits held in traditional banks (or, further in the past, private bank notes), this run involved firms and institutional investors and it was on repo held in the shadow banking system:
1. Introduction … Yes, we have been through this before, tragically many times. U.S. financial history is replete with banking crises and the predictable political responses. Most people are unaware of this history, which we are repeating. A basic point of this note is that there is a fundamental, structural, feature of banking, which if not guarded against leads to such crises. Banks create money, which allows the holder to withdraw cash on demand. The problem is not that we have banking; we need banks and banking. And we need this type of bank product. But, as the world grows and changes, this money feature of banking reappears in different forms. The current crisis, far from being unique, is another manifestation of this problem. The problem then is structural.
In this note, I pose and try to answer what I think are the most relevant questions about the crisis. I focus on the systemic crisis, not other attendant issues. I do not have all the answers by any means. But, I know enough to see that the level of public discourse is politically motivated and based on a lack of understanding, as it has been in the past, as the opening quotations indicate. The goal of this note is to help raise the level of discourse.
2. Questions and Answers
Q. What happened?
A. This question, though the most basic and fundamental of all, seems very difficult for most people to answer. They can point to the effects of the crisis, namely the failures of some large firms and the rescues of others. People can point to the amounts of money invested by the government in keeping some firms running. But they can’t explain what actually happened, what caused these firms to get into trouble. Where and how were losses actually realized? What actually happened? The remainder of this short note will address these questions. I start with an overview.
There was a banking panic, starting August 9, 2007. In a banking panic, depositors rush en masse to their banks and demand their money back. The banking system cannot possibly honor these demands because they have lent the money out or they are holding long-term bonds. To honor the demands of depositors, banks must sell assets. But only the Federal Reserve is large enough to be a significant buyer of assets.
Banking means creating short-term trading or transaction securities backed by longer term assets. Checking accounts (demand deposits) are the leading example of such securities. The fundamental business of banking creates a vulnerability to panic because the banks’ trading securities are short term and need not be renewed; depositors can withdraw their money. But, panic can be prevented with intelligent policies. What happened in August 2007 involved a different form of bank liability, one unfamiliar to regulators. Regulators and academics were not aware of the size or vulnerability of the new bank liabilities.
In fact, the bank liabilities that we will focus on are actually very old, but have not been quantitatively important historically. The liabilities of interest are sale and repurchase agreements, called the “repo” market. Before the crisis trillions of dollars were traded in the repo market. The market was a very liquid market like another very liquid market, the one where goods are exchanged for checks (demand deposits). Repo and checks are both forms of money. (This is not a controversial statement.) There have always been difficulties creating private money (like demand deposits) and this time around was no different.
The panic in 2007 was not observed by anyone other than those trading or otherwise involved in the capital markets because the repo market does not involve regular people, but firms and institutional investors. So, the panic in 2007 was not like the previous panics in American history (like the Panic of 1907, shown below, or that of 1837, 1857, 1873 and so on) in that it was not a mass run on banks by individual depositors, but instead was a run by firms and institutional investors on financial firms. The fact that the run was not observed by regulators, politicians, the media, or ordinary Americans has made the events particularly hard to understand. It has opened the door to spurious, superficial, and politically expedient “explanations” and demagoguery. …
The Panic of 1907
The important points are:
• As traditional banking became unprofitable in the 1980s, due to competition from, most importantly, money market mutual funds and junk bonds, securitization developed. Regulation Q that limited the interest rate on bank deposits was lifted, as well. Bank funding became much more expensive. Banks could no longer afford to hold passive cash flows on their balance sheets. Securitization is an efficient, cheaper, way to fund the traditional banking system. Securitization became sizable.
• The amount of money under management by institutional investors has grown enormously. These investors and non‐financial firms have a need for a short-term, safe, interest-earning, transaction account like demand deposits: repo. Repo also grew enormously, and came to use securitization as an important source of collateral.
• Repo is money. It was counted in M3 by the Federal Reserve System, until M3 was discontinued in 2006. But, like other privately-created bank money, it is vulnerable to a shock, which may cause depositors to rationally withdraw en masse, an event which the banking system – in this case the shadow banking system—cannot withstand alone. Forced by the withdrawals to sell assets, bond prices plummeted and firms failed or were bailed out with government money.
• In a bank panic, banks are forced to sell assets, which causes prices to go down, reflecting the large amounts being dumped on the market. Fire sales cause losses. The fundamentals of subprime were not bad enough by themselves to have created trillions in losses globally. The mechanism of the panic triggers the fire sales. As a matter of policy, such firm failures should not be caused by fire sales.
• The crisis was not a one-time, unique, event. The problem is structural. The explanation for the crisis lies in the structure of private transaction securities that are created by banks. This structure, while very important for the economy, is subject to periodic panics if there are shocks that cause concerns about counterparty default. There have been banking panics throughout U.S. history, with private bank notes, with demand deposits, and now with repo. The economy needs banks and banking. But bank liabilities have a vulnerability.
Update: See also What Really Went Wrong?, BY Steve Landsburg.
Originally published at Economist’s View and reproduced here with the author’s permission.