The Basel framework has gone through substantial transformation during the last couple of years amidst a political, regulatory and societal environment that has pushed for stricter and more prudential supervisory activity.
This has been a natural development as it became clear that the regulatory framework proved to be inappropriate to cope with the latest developments in the financial services industry. The Basel Committee itself recognized that the pre-crisis regime and overall design of the framework showed material weaknesses in ensuring adequate capital requirements that could absorb the magnitude of losses that the banking industry experienced in 2007/2008.
Table of Contents
1. Introduction
2. Why has market liquidity become an issue in recent regulatory development?
3. Steps to the incorporation of market illiquidity into the new standards on minimum capital requirements for market risk
3.1 Revisions to the Basel II market risk framework
3.2 Consultative Document I: Fundamental review of the trading book
3.3 Consultative Document II: Fundamental review of the trading book – A revised market risk framework
3.4 Consultative Document III: Fundamental review of the trading book – Outstanding Issues
3.5 Standard: Minimum Capital Requirements for Market Risk – Final Standard
4. Academia on illiquidity risk and reference to Basel III
5. Conclusion
6. References
Research Objectives and Focus
The primary objective of this paper is to examine the process by which the Basel Committee integrated market illiquidity risk into the internal models approach of the new regulatory framework. It seeks to identify the pivotal steps of this incorporation, explain the Committee's rationale for prioritizing market illiquidity, and critically compare the regulatory outcomes with established academic perspectives on liquidity risk.
- Evolution of Basel regulations regarding market risk and liquidity.
- Chronological analysis of the Fundamental Review of the Trading Book (FRTB).
- Implementation of liquidity horizons as a risk-weighting mechanism.
- Disparity between regulatory "one-size-fits-all" approaches and academic rigor.
- The role of endogenous versus exogenous liquidity in financial stability.
Excerpt from the Book
Liquidity horizon
Liquidity horizons are best understood as the time required to sell a financial instrument, or hedge all its material risk in a stressed market without materially affecting market prices (Consultative Document I, 2012). So in general, the longer the liquidity horizon for a particular risk exposure, the more capital the bank would need provide to hold this exposure. In defining potential liquidity horizons, the Committee had to weigh a very fine-tuned, granular calibration of liquidity against the cost of greater complexity in the regulatory regime. To reduce these costs, the Committee decided on a few generic “buckets” of liquidity horizons. The way these are incorporated into the risk metric is through assigning risk factors, which determine returns of financial instruments within the trading book and which was already a common approach in market risk modeling, to the generic liquidity horizons. To avoid regulatory arbitrage, the Committee developed detailed quantitative and qualitative guidelines on the assignment and introduced floors for horizons on specific risk factors. The Committee acknowledged that determining these floors is exposed to some degree of judgment, but that it will seek to base this on an informed quantitative analysis. It was also seeking input on how to specifically apply these horizons to longer risk factor shocks (e.g. 1 year) due to potential lack of market data. Without going into too much detail, the Committee was debating between using short horizons and scaling them up by the square root of time to longer horizons, or using a longer horizon in the first place. Slower horizons would solve the problem of insufficient and overlapping market data, but lead to unrealistically high risk charges in some cases, as it not fully captures correlation effects. The Committee was also contemplating on determining the stressed shocks on a portfolio level, including correlation effects, and scaling this output up to the weighted average liquidity horizon. The problem with this is determining what the average liquidity horizon of a trading portfolio is.
Summary of Chapters
1. Introduction: Outlines the shift in the Basel framework toward stricter prudential supervision following the 2007/2008 financial crisis and defines the research scope.
2. Why has market liquidity become an issue in recent regulatory development?: Discusses the underestimation of liquidity risks in pre-crisis regimes and the subsequent need for more quantitative and specific regulatory provisions.
3. Steps to the incorporation of market illiquidity into the new standards on minimum capital requirements for market risk: Provides a chronological walkthrough of the reforms from the Basel 2.5 package through the various consultative documents of the Fundamental Review of the Trading Book.
3.1 Revisions to the Basel II market risk framework: Describes the initial response to the crisis, introducing stressed VaR and improved valuation guidelines for illiquid positions.
3.2 Consultative Document I: Fundamental review of the trading book: Details the proposal to use liquidity horizons as the primary operational tool for assessing illiquidity risk.
3.3 Consultative Document II: Fundamental review of the trading book – A revised market risk framework: Explains the evolution of implementing liquidity horizons and the shift toward model-independent approaches for capital add-ons.
3.4 Consultative Document III: Fundamental review of the trading book – Outstanding Issues: Addresses the implementation challenges of the previous proposals and the return to a methodology based on 10-day shocks with up-scaling.
3.5 Standard: Minimum Capital Requirements for Market Risk – Final Standard: Summarizes the final structural changes in liquidity horizon buckets and the implementation of the new capital charge formula.
4. Academia on illiquidity risk and reference to Basel III: Contrasts the Basel Committee's regulatory approach with academic research, highlighting the tension between practical implementation costs and theoretical rigor.
5. Conclusion: Synthesizes the findings, noting that while Basel III represents progress, it falls short of incorporating more complex notions of endogenous liquidity.
6. References: Lists the primary consultative papers and academic literature cited throughout the study.
Keywords
Basel III, Market Liquidity, Illiquidity Risk, Capital Requirements, Trading Book, Liquidity Horizon, Expected Shortfall, Value-at-Risk, Regulatory Framework, Financial Stability, Endogenous Liquidity, Exogenous Liquidity, Risk Management, Banking Regulation, Fundamental Review of the Trading Book.
Frequently Asked Questions
What is the core focus of this paper?
The paper examines how the Basel Committee transitioned from a pre-crisis regulatory framework to one that explicitly accounts for market illiquidity within capital requirements.
What are the primary thematic areas addressed?
The study centers on the Basel III regulatory process, the development of liquidity horizons, the distinction between endogenous and exogenous liquidity, and the integration of academic critiques into regulatory policy.
What is the primary research question?
The research asks how the Basel Committee incorporated market illiquidity risk into the new framework for the internal models approach of market risk and what specific procedural steps facilitated this change.
Which methodology is utilized in this study?
The paper employs a chronological review of regulatory documents (Consultative Documents I-III) and a comparative analysis against existing academic literature on market microstructure and liquidity risk.
What is covered in the main body of the text?
The main body details the evolution from the Basel II framework to the final standards of Basel III, focusing specifically on the shift from VaR to Expected Shortfall and the implementation of liquidity horizon "buckets."
What key terms characterize this research?
Key terms include liquidity horizons, Fundamental Review of the Trading Book (FRTB), Basel III, market risk, and capital charges.
Why did the Basel Committee move away from the "full liquidity horizon" method in the third consultative document?
The Committee found that the initial method would cause significant implementation costs, lack of comparability across banks, and infrastructure challenges that outweighed the potential gains in precision.
Does the final Basel III standard account for endogenous liquidity?
No, the final standard makes no formal reference to endogenous liquidity, a concept that had been initially introduced in early consultative phases but was eventually discarded, likely due to implementation complexities.
- Arbeit zitieren
- Mark Matern (Autor:in), 2017, Minimum Capital Requirements for Market Risk, München, GRIN Verlag, https://www.hausarbeiten.de/document/372142
