Basel III is an internationally agreed set of measures developed by the Basel Committee on Banking Supervision in response to the 2008 financial crisis. Its primary goal is to strengthen the regulation, supervision, and risk management of banks globally, making the financial system more resilient to economic shocks.
A key component of Basel III is the enhancement of bank capital requirements. It mandates higher minimum capital ratios, forcing banks to hold a greater buffer against potential losses. This includes increasing the minimum Common Equity Tier 1 (CET1) capital ratio, considered the highest quality of capital, and bolstering the Tier 1 capital ratio. These higher capital requirements reduce the likelihood of banks becoming insolvent during periods of financial distress.
Beyond simply increasing the amount of capital, Basel III also focuses on the quality of capital. It emphasizes CET1 capital, primarily consisting of common stock and retained earnings, deeming it more reliable and loss-absorbent than other forms of capital. By emphasizing higher-quality capital, Basel III ensures that banks have genuine resources to absorb losses rather than relying on more easily eroded or less reliable capital instruments.
Another crucial aspect of Basel III is the introduction of liquidity standards. The Liquidity Coverage Ratio (LCR) requires banks to hold sufficient high-quality liquid assets (HQLA) to cover their net cash outflows over a 30-day stress period. This aims to ensure banks have enough readily available funds to meet their obligations during a liquidity crisis. Furthermore, the Net Stable Funding Ratio (NSFR) requires banks to maintain a stable funding profile in relation to the composition of their assets and off-balance sheet exposures over a one-year horizon. The NSFR encourages banks to rely on more stable and longer-term funding sources, reducing their reliance on short-term wholesale funding, which can be volatile and prone to drying up during crises.
Basel III also addresses the issue of leverage. It introduces a leverage ratio, a simple, non-risk-based measure that limits the amount of leverage a bank can take on. This ratio is calculated by dividing Tier 1 capital by a bank’s total exposure (assets and off-balance sheet exposures). By limiting leverage, Basel III aims to prevent excessive risk-taking and reduce the potential for amplified losses.
Finally, Basel III includes measures to address systemic risk. It focuses on systemically important financial institutions (SIFIs), banks whose failure could trigger a wider financial crisis. These institutions are subject to stricter capital requirements and enhanced supervision. The goal is to reduce the likelihood of their failure and minimize the impact if they do fail.
In summary, Basel III is a comprehensive set of reforms designed to strengthen the banking system and mitigate systemic risk. By increasing capital requirements, improving capital quality, introducing liquidity standards, limiting leverage, and addressing systemic risk, Basel III aims to create a more resilient and stable financial system that is better equipped to weather future economic storms.