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首页> 外文期刊>Journal of applied mathematics >An Optimal Portfolio and Capital Management Strategy for Basel III Compliant Commercial Banks
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An Optimal Portfolio and Capital Management Strategy for Basel III Compliant Commercial Banks

机译:符合巴塞尔协议III的商业银行的最佳投资组合和资本管理策略

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We model a Basel III compliant commercial bank that operates in a financial market consisting of a treasury security, a marketable security, and a loan and we regard the interest rate in the market as being stochastic.We find the investment strategy that maximizes an expected utility of the bank's asset portfolio at a future date. This entails obtaining formulas for the optimal amounts of bank capital invested in different assets. Based on the optimal investment strategy, we derive a model for the Capital Adequacy Ratio (CAR), which the Basel Committee on Banking Supervision (BCBS) introduced as ameasure against banks' susceptibility to failure. Furthermore, we consider the optimal investment strategy subject to a constant CAR at the minimum prescribed level.We derive a formula for the bank's asset portfolio at constant (minimum) CAR value and present numerical simulations on different scenarios. Under the optimal investment strategy, the CAR is above the minimum prescribed level.Thevalue of the asset portfolio is improved if the CAR is at its (constant) minimum value.
机译:我们对符合巴塞尔协议III的商业银行进行建模,该商业银行在由国库券,有价证券和贷款组成的金融市场中运作,我们认为市场利率是随机的,我们发现可以最大化预期效用的投资策略银行资产组合在将来的日期。这需要获得用于投资于不同资产的最佳银行资本量的公式。基于最佳投资策略,我们得出了资本充足率模型(CAR),巴塞尔银行监管委员会(BCBS)引入了该模型,以作为对银行倒闭敏感性的衡量标准。此外,我们考虑了在最低规定水平上以恒定资本充足率进行投资的最优投资策略。我们得出了具有恒定(最低)资本充足率值的银行资产组合的公式,并给出了不同情况下的数值模拟。在最优投资策略下,资本充足率高于最低规定水平。如果资本充足率处于(恒定)最小值,资产组合的价值将得到提高。

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