Browsing by Subject "Basel Accord"

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    Regulatory Capital Decisions in the context of Consumer Loan Portfolios
    (Journal of the Operational Research Society, 2016-04-06) Rajaratnam, Kanshukan; Beling, Peter; Overstreet, George
    A topic of interest in recent literature is regulatory capital requirements for consumer loan portfolios. Banks are required to hold regulatory capital for unexpected losses, while expected losses are to be covered by either provisions or future income. In this paper, we show the set of efficient operating points in the market share and profit space for a portfolio manager operating under Basel II capital requirement and under capital constraints are a union of single-cutoff-score and double cutoff-score operating points. For a portfolio manager to increase market-share beyond the maximum allowable under a single-cutoff score policy (eg, with binding capital constraints) requires granting loans to higher than optimal risk applicants. We show this result in greater portfolio risk but without an increase in regulatory capital requirement amount. The increase in forecasted losses is assumed to be absorbed by provisions or future margin income. Given portfolio managers take on higher risk under the same regulatory capital amount, our findings call for greater focus on provision amounts and future margin income under the supervisory review pillar of Basel II. This research raises the issue of whether the design of the regulatory formula for consumer loan portfolios is flawed.
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    The implications of bank risk-weighted capital and ownership on portfolio rebalancing, profitability, and stability: evidence from Tanzania
    (2024) Mchembe, Renatus Anathory; Toerien, Francois; Ndlovu Godfrey
    Banks are vital for economic growth and development as they mobilise and channel the flow of funds from surplus to deficit units and help to finance government expenditure by investing in government securities, among other activities. Bank activities are especially crucial in developing countries, due to underdeveloped financial markets, as they often dominate the financial sector. The banking crises of the last three decades have resulted in increased macroprudential regulations to protect the banking sector against the risk of failure emanating from banks' loan portfolios. A key element of these regulations is usually the prescription of minimum risk-weighted capital ratios. However, this can potentially affect bank profitability and in an attempt to rebalance their capital risk profile to match regulatory requirements, banks may alter the balance between bank lending (higher risk activities) and low risk activities, such as investment in government securities. Contradictory evidence exists on the relations