With the economy appearing to begin to stabilize, more attention is being given to possible measures for preventing a recurrence of an economic crash as calamitous as this one has been and continues to be. Advocacy of specific measures seems to me premature, however. This is not only because proposals for overhauling the regulation of banking adds additional uncertainty to the economic environment. It is also because the reform of banking regulation is an immensely complex undertaking that should be attempted only after careful deliberation. There is no urgency about strengthening bank regulation at present or in the immediate future. Memories are short, but there isn't going to be another housing or credit bubble in the immediate future even if no regulatory changes are made.
Congress seems about to pass a law that would create an investigatory commission, modeled on the 9/11 commission, to explore the causes of the current depressioin. The 9/11 commission issued, in the summer of 2004, an exhaustive narrative and analysis of the events leading up to the terrorist attacks of September 11, 2001, and of the failure of our intelligence agencies to discover the terrorists' plot in advance of its execution. Almost as an afterthought the commission made a number of ill-conceived recommendations for reform of the intelligence system, many of which were adopted with, I have argued in several books, meager results. One hopes the commission to investigate the causes of the current depression will devote more attention to formulating intelligent, constructive recommendations for reform than the 9/11 commission did. (It would be nice if we could occasionally learn from our mistakes.) But the completion of the commission's report will doubtless take a long time, so one can hope that the rush to reform banking regulation will be halted until the report is published and its recommendations digested.
Many reforms are being discussed, and in this entry I will offer my reactions to just a few of them. The first is to have two tiers of banking regulation, one for the vast majority of banks, the other for the handful (about 20) banks that among them account for about two-thirds of the revenues of the U.S. banking industry. The latter group, often described as banks "too big to fail" (more precisely, too big to be allowed to fail, that is, to go broke), would, in the suggested reform that I am discussing, be carefully regulated by a "systemic regulator" charged with responsibility for preventing the banks from taking risks that, if the risks materialized, could precipitate a general economic crash and require massive federal bailouts, as in the current crisis. A radical alternative that is unlikely to receive serious consideration is to break up the banks or shear away the parts of their business that do not fit the traditional understanding of commercial banking.
The concern with the big banks is understandable, but the idea of subjecting them to a "systemic regulator" doesn't make a lot of sense. To begin with, size per se is not a good indication of the macroeconomic significance of a financial institution. Lehman Brothers, which the government allowed to collapse last September, was not very large. But it occupied a strategic position in several important financial markets, such as commercial paper, letters of credit, and credit default swaps, with the result that its collapse, against the background of the severe weakening of the banking industry as a whole by the collapse of the housing and mortgage markets, caused a substantial disruption of the global finance industry.
Furthermore, regulations triggered by the regulated firms' size or (what is more difficult to ascertain and evaluate) strategic significance will induce many institutions to avoid becoming large enough or strategic enough to be subject to the regulations, and the result may a less efficient banking industry, if scale and position in financial markets confer substantial benefits.
Then too, the idea of the systemic regulator doesn't match up with the concern that underlies the expression "firms too big to be allowed to fail." The concern is valid: a firm that has reason to think that it will be bailed out by the government if it gets into deep financial trouble will be able to borrow at lower interest rates than other firms, and this will give it a competitive advantage unrelated to superior efficiency. The managers and shareholders of the banks that have had to be bailed out by the government have taken a shellacking, but not the bondholders; and that is the basis for the fear that banks too big to be allowed to fail can borrow at lower rates--their bondholders don't have to worry that the banks will go broke and default on the bonds.
But even if the 20 biggest banks were split five ways, so that 100 banks instead of 20 banks accounted for the bulk of bank lending, the "too big to fail" problem would not be solved. It is not any individual bank that is too big to be allowed to fail, but the banking industry as a whole. Any single bank, even the largest, could have been allowed to fail without catastrophic consequences. The problem was that the bursting of the housing bubble impaired the solvency of a very large fraction of the banking industry (weighted by size of bank). Had that very large fraction consisted of 100 banks rather than 20 banks, the need for bailouts would have been no less urgent and the resulting windfalls for the creditors of those banks no smaller.