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A significant trend in financial regulation over the past
half century has been the increased application of
regulatory capital requirements to
financial institutions. Regulatory
capital requirements largely originated in the
United States as a response to the deregulation of the 1970s and 1980s. Because of the
Glass-Steagall
distinction between
commercial banks and
securities firms, two parallel regimes
developed. One is for banks and is administered by the
Fed,
OCC and
FDIC. The
other is for securities firms and is administered by the
SEC.
Under this bifurcated system, capital requirements have been implemented
for different purposes, reflecting the differing natures of banks and
securities firms.
Traditionally, banks were primarily
exposed to credit risk. They held
illiquid portfolios of loans supported
by deposits. Loans could be liquidated rapidly only at “fire sale” prices.
This placed banks at risk of runs. If depositors feared a bank might
fail, they would withdraw their deposits. Forced to liquidate its loan
portfolio, the bank would succumb to staggering losses on those sales.
Deposit insurance and lender-of-last-resort provisions
implemented since the
Crash of 1929 eliminated the risk of bank runs, but they introduced a
new problem. Depositors no longer had an incentive to consider a bank’s
financial viability before depositing funds. Without such marketplace
discipline, regulators were forced to intervene. One solution was to
impose minimum capital requirements on banks. Because of the high cost of
liquidating a bank, such requirements would be based upon the value of a
bank as a going concern.
The primary purpose of capital requirements for securities
firms was to protect clients who might have funds or
securities on deposit
with a firm. Securities firms mostly took market risk. They
held liquid portfolios of marketable securities supported by secured
financing such as repos. A troubled firm’s portfolio could be unwound
quickly at market prices. For this reason, capital requirements were based
upon the liquidation value of a firm.
In a nutshell, banks entailed
systemic risk.
Securities firms did not. Regulators would strive to keep a troubled bank
operating. They would gladly unwind a troubled securities firm. Banks
needed long-term capital in the form of
equity or long-term subordinated
debt. Securities firms could operate with more transient capital,
including short-term subordinated debt. It made sense to have different
capital regimes for banks and securities firms. The Glass Steagal
separation of commercial banks and securities firms facilitated this. By
the mid-1980s, US commercial banks were subject to
primary capital
requirements set by the SEC, OCC and FDIC while US securities
firms were subject to the SEC's
Uniform Net
Capital Rule (UNCR).
Regulatory arbitrage
is any transaction that has little or no economic impact on a financial
institution while either increasing its capital or decreasing its required
capital. Just as trading
arbitrage identifies and exploits
inconsistencies in market prices, regulatory arbitrage identifies and
exploits inconsistencies in capital regulations. Regulatory arbitrage
undermines the effectiveness of capital regulations. It is one of the
primary motivators for regulators to continually improve capital
requirements.
The UNCR is a
risk-based capital requirement, but primary
capital was based on a bank's
capital
ratio. This made it particularly subject to regulatory
arbitrage. During the mid-1980s, US commercial banks used
letters of credit, loan commitments and swaps to move assets off their
balance sheets. Some sold their headquarters buildings to realize a
capital gain and then leased them back. This was one motivator for US bank
regulators to participate in the development of the
1988 Basel Accord. It
imposed a risk-based capital requirement on banks, but its crude system of
risk weights was itself easy to arbitrage. Explosive growth in
credit derivative and
securitization markets during the 1990s can largely be ascribed to
regulatory arbitrage of the 1988 Basel Accord, both in the United States
and abroad. That regulatory arbitrage, in turn, motivated the development
of Basel II.
Inevitably, there is a
tradeoff between strengthening capital regulations against regulatory
arbitrage and keeping those regulations simple and affordable for the
financial institutions who are subject to them. Basel II is far more
complicated than the 1988 Basel Accord. This may have contributed to the
decision by US regulators to apply Basel II to only the largest US banks.
Another goal of the Basel Accords, at least for some regulators, was to
harmonize capital regulations for banks and securities firms. Account
insurance and regulations requiring segregation of investor assets had
largely mitigated the risks that capital requirements for securities firms
were intended to address. Increasingly, capital requirements for
securities firms were justified on two new grounds:
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Although securities firms do not pose the same
systemic risks as banks, it was argued that bank securities operations
and non-bank securities firms should face the same capital requirements.
Such harmonization can create a competitive “level playing field”
between the two. This was the philosophy underlying Europe’s 1993
Capital Adequacy
Directive (CAD). It was
hoped that the Basel Accords might extend such harmonization to US
securities firms, several of which competed internationally.
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Some securities firms were active in the
OTC
derivatives markets. Unlike traditional securities, many OTC derivatives
were illiquid and posed significant credit risk for one or both
counterparties. This was compounded by their high leverage that could
inflict staggering market losses on unwary firms. Fears were mounting
that the failure of one derivatives dealer could cause credit losses at
other dealers. For the first time, non-bank securities firms were posing
systemic risks.
In Europe, the
United Kingdom distinguished between banks and securities firms, but on
the continent, Germany's system of
universal banks
predominated. As Europe moved towards unification, the 1993 CAD harmonized the regulation of British securities firms
and Germany's universal banks. The
1988 Basel Accord had
leveled the competitive playing field among different countries' banks. A 1991
Basel-IOSCO initiative
attempted to extend this harmonization to US securities firms, which
remained subject to the SEC's separate UNCR. That initiative failed.
Harmonization
has never been a priority for the SEC. The SEC is largely content with
bifurcated regulation. Indeed, the SEC has voiced concerns that adopting
Basel-like requirements in place of the UNCR would needlessly dilute
capital requirements for US securities firms.
The other
justification for applying capital requirements to securities firms—the
systemic risk posed by OTC derivatives—is also not compelling. Many US
securities firms have little or no involvement with OTC derivatives. If
OTC derivatives are the problem, it would seem appropriate to apply
capital requirements based on the extent to which a securities firm is
exposed to them. In a political environment that is strongly opposed to
direct regulation of OTC derivatives (see this glossary's article
United States
financial regulation) such an approach seems unlikely.
For whatever
reason, the SEC continues to maintain its own UNCR capital regulation for
US securities firms. Questions as to whether this should be harmonized
with the Basel Accords or simply abandoned as unnecessary remain open.
Occasionally debates flair, but no action on either possibility appears
likely in the near future.
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