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A main cause of the ongoing financial crisis is the various ways through which banks have transferred credit risk in the financial system. In this paper we study the riskiness of banks that have used these methods, as perceived by the market. For this we analyze a sample of banks that trade Credit Default Swaps (CDS) and a sample of banks that issued Collateralized Loan Obligations (CLOs) between 1997 and 2006. We find that after their first usage of either risk transfer method, these banks experience a large and significant permanent increase in their share price beta. This suggests that the market was aware of the risks arising from these methods, long before the actual onset of the crisis. We also address the question of the source of the beta effect by separating it into a volatility and a market correlation component. Quite strikingly we find that the increase in the beta is solely due to an increase in banks' correlations. The volatility of these banks' returns actually declines. This suggests that banks undertaking credit risk transfer activities may appear individually less risky, while actually posing a greater risk for the financial system. We argue that this posits a challenge for financial regulation, which has typically focused on the level of the individual institution.
Until about twenty years ago, the consensus view on the cause of financial-system distress was fairly simple: a run on one bank could easily turn to a panic involving runs on all banks, destroying some and disrupting the financial system. Since then, however, a series of events—such as emerging-market debt crises, bond-market meltdowns, and the Long-Term Capital Management episode—has forced a rethinking of the risks facing financial institutions and the tools available to measure and manage these risks. The Risks of Financial Institutions examines the various risks affecting financial institutions and explores a variety of methods to help institutions and regulators more accurately measure and forecast risk. The contributors--from academic institutions, regulatory organizations, and banking--bring a wide range of perspectives and experience to the issue. The result is a volume that points a way forward to greater financial stability and better risk management of financial institutions.
This paper shows under which conditions loan securitization, e.g. collateral debt obligations (CDOs) of banks can increase the systemic risks in the banking sector. We use a simple model to show how securitization can reduce the individual banks' economic capital requirements by transferring risks to other market participants and demonstrate that systemic risks do not decrease due to the securitization. Systemic risks can increase and impact financial stability in two ways. First, if the risks are transferred to unregulated market participants there is less capital in the economy to cover these risks. And second, if the risks are transferred to other banks interbank linkages increase and therefore augment systemic risks. We analyze the differences of CDOs (true sale) and credit default swaps (synthetic) in contributing to these risks. An empirical analysis finds a significant relationship between systemic risk and CDO issuance for monthly data for the years 2000 until 2005.
A comprehensive guide to credit risk management The Handbook of Credit Risk Management presents a comprehensive overview of the practice of credit risk management for a large institution. It is a guide for professionals and students wanting a deeper understanding of how to manage credit exposures. The Handbook provides a detailed roadmap for managing beyond the financial analysis of individual transactions and counterparties. Written in a straightforward and accessible style, the authors outline how to manage a portfolio of credit exposures--from origination and assessment of credit fundamentals to hedging and pricing. The Handbook is relevant for corporations, pension funds, endowments, asset managers, banks and insurance companies alike. Covers the four essential aspects of credit risk management: Origination, Credit Risk Assessment, Portfolio Management and Risk Transfer. Provides ample references to and examples of credit market services as a resource for those readers having credit risk responsibilities. Designed for busy professionals as well as finance, risk management and MBA students. As financial transactions grow more complex, proactive management of credit portfolios is no longer optional for an institution, but a matter of survival.
Banks and other lenders often transfer credit risk to liberate capital for further loan intermediation. This paper aims to explore the design, prevalence and effectiveness of credit risk transfer (CRT). The focus is on the costs and benefits for the efficiency and stability of the financial system. After an overview of recent credit risk transfer activity, the following points are discussed: motivations for CRT by banks; risk retention; theories of CDO design; specialty finance companies. As an illustration of CLO design, an example is provided showing how the credit quality of the borrowers can deteriorate if efforts to control their default risks are costly for issuers. An appendix is provided on CDS index tranches. This paper includes comments by Mohamed A El-Erian.
How is finance related to economic processes, and why should it be viewed as a public good requiring policy action? This book provides an answer. The book develops a practical framework for safeguarding financial stability, which encompasses both prevention and resolution of problems. It also examines on-going and future challenges to financial stability posed by globalization, a growing reliance on derivatives and their markets, and the capital market activities of insurers and reinsurers.
Large banks often sell part of their loan portfolio in the form of collateralized debt obligations (CDO) to investors. In this paper we raise the question whether credit asset securitization affects the cyclicality (or commonality) of bank equity values. The commonality of bank equity values reflects a major component of systemic risks in the banking market, caused by correlated defaults of loans in the banks' loan books.Our simulations take into account the major stylized fact of CDO transactions, the non-proportional nature of risk sharing that goes along with tranching. We provide a theoretical framework for the risk transfer through securitization that builds on a macro risk factor and an idiosyncratic risk factor, allowing an identification of the types of risk that the individual tranche holders bear. This allows conclusions about the risk positions of issuing banks after risk transfer. Building on the strict subordination of tranches, we first evaluate the correlation properties both within and across risk classes. We then determine the effect of securitization on the systematic risk of all tranches, and derive its effect on the issuing bank's equity beta. The simulation results show that under plausible assumptions concerning bank reinvestment behaviour and capital structure choice, the issuing intermediary's systematic risk tends to rise. We discuss the implications of our findings for financial stability supervision.
The paper discusses the limits to market-based risk transfer in the financial system and the implications for the management of systemic long-term financial risks. Financial instruments or markets to transfer and better manage these risks across institutions and sectors are, as yet, either nascent or nonexistent. As such, the paper investigates why these markets remain "incomplete." It also explores a range of options by which policymakers may encourage the development of these markets as part of governments' role as a risk manager.
This first of three volumes on credit risk management, providing a thorough introduction to financial risk management and modelling.