A Review of Capital Adequacy Frameworks and Risk Weighted Asset Optimization in Modern Banking Systems

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@article{1714695,
      author = {Lovelyn Nnedimma Ekpedo, Oluwatosin Dada, Ahmed Olakunle Oladipupo},
      title = {A Review of Capital Adequacy Frameworks and Risk Weighted Asset Optimization in Modern Banking Systems},
      journal = {Iconic Research And Engineering Journals},
      year = {2019},
      volume = {3},
      number = {5},
      pages = {466-482},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1714695.pdf},
      abstract = {Capital adequacy frameworks constitute the cornerstone of modern banking regulation, serving as critical mechanisms for safeguarding financial system stability, protecting depositors, and mitigating systemic risk. Over the past three decades, global banking supervision has evolved significantly through successive regulatory reforms, particularly under the Basel Accords, which introduced increasingly sophisticated approaches to measuring capital sufficiency and risk exposure. This review paper examines the theoretical foundations, regulatory evolution, and practical implementation of capital adequacy frameworks, with particular emphasis on the optimization of Risk-Weighted Assets (RWA) in contemporary banking systems. The study synthesizes existing literature on Basel I, II, and III standards, highlighting the transition from simple capital ratios toward risk-sensitive and forward-looking supervisory models incorporating credit, market, operational, and liquidity risks. The review further analyzes methodological approaches used by financial institutions to optimize RWAs, including internal ratings-based models, portfolio diversification strategies, stress testing, and advanced risk analytics supported by artificial intelligence and data-driven decision systems. Attention is given to the interaction between regulatory compliance and strategic bank management, demonstrating how capital optimization influences lending behavior, profitability, and financial resilience. Additionally, the paper explores emerging challenges such as procyclicality, model risk, regulatory arbitrage, and the growing complexity of supervisory expectations in digitalized banking environments. Comparative perspectives from developed and emerging markets are incorporated to assess implementation disparities and policy effectiveness. By integrating regulatory theory with operational banking practices, this review provides a comprehensive understanding of how capital adequacy frameworks shape risk governance and balance stability with economic growth objectives. The paper concludes by identifying future directions for adaptive capital regulation, emphasizing technology-enabled risk assessment and dynamic supervisory frameworks suited to evolving global financial ecosystems.},
      keywords = {Capital Adequacy; Risk-Weighted Assets; Basel Accords; Banking Regulation; Financial Stability; Risk Management},
      month = {November},
  }