BASEL I
- In 1988, the Basel Committee on
Banking Supervision (BCBS) in Basel, Switzerland, published a set
of minimum capital requirements for banks.These were known as Basel
I.
- It focused almost entirely on
credit risk (default risk) - the risk of counter party failure. It
defined capital requirement and structure of risk weights for
banks.
- Under these norms: Assets of banks
were classified and grouped in five categories according to credit
risk, carrying risk weights of 0%(Cash, Bullion, Home Country Debt
Like Treasuries), 10%, 20%, 50% and100% and no rating.
- Banks with an international
presence are required to hold capital equal to 8% of their
risk-weighted assets (RWA) - At least, 4% in Tier I Capital (Equity
Capital + retained earnings) and more than 8% in Tier I and Tier II
Capital by the end of 1992.
- One of the major role of Basel
norms is to standardize the banking practice across all countries.
However, there are major problems with definition of Capital and
Differential Risk Weights to Assets across countries, like Basel
standards are computed on the basis of book-value accounting
measures of capital, not market values. Accounting
practices vary significantly across the G-10 countries and often
produce results that differ markedly from market assessments.
- Other problem was that the risk
weights do not attempt to take account of risks other than credit
risk, viz., market risks, liquidity risk and operational risks that
may be important sources of insolvency exposure for banks.
Basel II:
- Basel II is a set of international
banking regulations put forth by the Basel Committee on Bank
Supervision, which leveled the international regulation field with
uniform rules and guidelines.
- Basel II expanded rules for minimum
capital requirements established under Basel I, the first
international regulatory accord, and provided framework for
regulatory review, as well as set disclosure requirements for
assessment of capital adequacy of banks.
- The main difference between Basel
II and Basel I is that Basel II incorporates credit risk of assets
held by financial institutions to determine regulatory capital
ratios.
- So, Basel II was introduced in
2004, laid down guidelines for capital adequacy (with more refined
definitions), risk management (Market Risk and Operational Risk)
and disclosure requirements.
- Basel II is a second international
banking regulatory accord that is based on three main pillars:
a. minimal capital requirements,
b. regulatory supervision and
c. market discipline.
- Minimal capital requirements play
the most important role in Basel II and obligate banks to maintain
minimum capital ratios of regulatory capital over risk-weighted
assets.
- Basel II provides guidelines for
calculation of minimum regulatory capital ratios and confirms the
definition of regulatory capital and 8% minimum coefficient for
regulatory capital over risk-weighted assets.
- Basel II divides the eligible
regulatory capital of a bank into three tiers. The higher the tier,
the less subordinated securities a bank is allowed to include in
it. Each tier must be of certain minimum percentage of the total
regulatory capital and is used as a numerator in the calculation of
regulatory capital ratios.
- Tier 1 capital is the most strict
definition of regulatory capital that is subordinate to all other
capital instruments, and includes shareholders' equity, disclosed
reserves, retained earnings and certain innovative capital
instruments. Tier 2 is Tier 1 instruments plus various other bank
reserves, hybrid instruments, and medium- and long-term
subordinated loans. Tier 3 consists of Tier 2 plus short-term
subordinated loans.
- Basel II is refining the definition
of risk-weighted assets, which are used as a denominator in
regulatory capital ratios, and are calculated by using the sum of
assets that are multiplied by respective risk weights for each
asset type. The riskier the asset, the higher its weight. The
notion of risk-weighted assets is intended to punish banks for
holding risky assets, which significantly increases risk-weighted
assets and lowers regulatory capital ratios.
- The main innovation of Basel II in
comparison to Basel I is that it takes into account the credit
rating of assets in determining risk weights. The higher the credit
rating, the lower risk weight.
- Regulatory supervision is the
second pillar of Basel II that provides the framework for national
regulatory bodies to deal with various types of risks, including
systemic risk, liquidity risk and legal risks.
- The market discipline pillar
provides various disclosure requirements for banks' risk exposures,
risk assessment processes and capital adequacy, which are helpful
for users of financial statements.