GSIEF 208b – Risk Management Semesters Taught (Summer 1999, Summer 2000) Professor Ron D’Vari, Ph.D., CFA Adjunct Professor, Graduate School of Economic and International Finance, Brandeis University Sr. Vice President, Portfolio Manager, and Head of Quantitative Research State Street Research and Management Email: rdvari@ssrm.com The problem with the future is uncertainty – so we look for clues in the past. The objective of this class is to introduce students to various types of risks and their management. Here emphasis is given to financial risk management and particularly market and credit risks. Some aspects of operational, legal (compliance and regulatory), and strategic risk management for financial institutions are also explored. Text Books and References: - Philippe Jorion, Value at Risk, IRWIN Professional Publishing, 1997 - RiskMetricsTM Technical Document, RiskMetrics Group, Fourth Edition, 1996. - CreditMetricsTM Technical Document, RiskMetrics Group, April 2,1997. - Regulatory publications (see attached list) (RiskMetricsTM and CreditMetricsTM documents to be downloaded from www.riskmetrics.com) Optional Additional Readings: - Bernstein, Peter, Against the Gods, John Wiley & Sons, 1996 Prerequisites: Some level of familiarity with: Basic Quantitative Analysis: Time value of money, probability distributions and their properties, variance/covariance analysis, correlation and regression analysis and forecasting. Capital Markets: Fixed income derivatives; Foreign exchange derivatives; Futures, forwards, swaps, and options; Equity derivatives; Commodity derivatives; Emerging markets Class Grading: Participation in class discussions Team Project Class Presentation Final 10% 40% 20% 30% Office Hours: After each class or by appointment. Summary of Topics Discussed Multi-factor Models for Measuring Investment Portfolio Risk Multi-factor Performance Measurement and Attribution Value at Risk Definition and Computation Treatment of Derivatives Different Approaches to Measuring VAR Forecasting Risks and Correlations Computation, Benefits, and Limitations of Risk-Adjusted Return on Capital (RAROC) Risk Metrics and Credit Metrics Comprehensive methodology for measuring market risk Identification, Quantification, and Management of Operational Risk Risk-Adjusted Capital Framework – Operational Risk, Credit Risk, Market Risk Classification of Risks Confronting Financial Intermediaries – Lending, Trading, Operating Services, Deposit Gathering, Treasury, Capital Market Activities General Objectives of Enterprise-wide Risk Management – Balance Sheet Management, Performance Measurement, Motivation and Compensation, Strategic Decision Support Identification and Measurement of Non-financial Risks (Risk of Lost Opportunities) Role of Information Flow and Visibility in Risk Management Implementation Issues For Transitioning to An Enterprise Risk Management Culture System Information flow and visibility Training Management Commitment Role of an Appropriate Benchmark for Measuring Relative Risk Session 1: Introduction to Risk Management 1. 2. 3. 4. 5. The Need for Risk Management Lessons from Financial Disasters The Concept of Hedging, Diversification and Insurance Risk Management Not Just for Trading Significant Changes to the Financial Markets – Securitization and Move to Risk-adjusted Performance Measurement 6. Types of Risks: Business, Strategic, Financial Risk, Operational Risk, Legal Risks 7. Types of Financial Risks: Market Risk, Credit Risk, Liquidity Risk 8. Conventional Market Risk Measures: Duration, Beta, Historical Volatility, Sector Exposure, Currency Exposure, Market Exposure, and Greeks for Derivatives 9. Evolution from Asset Liability Management to Value-At-Risk 10. The Risk Management Cycle: Identify, Measure, Manage, Evaluate, Improve 11. Role of Transparency of Risk 12. Role of Professional Judgement and Experience in Managing Risk Reading Assignments: Chapters 1-3 (PJ), RiskMetrics TD, Part I: Risk Measurement Framework Session 2: An Introduction to Value at Risk 1. Two Modern Approaches to Market Risk Management: Statistical Approach and Scenario Stress Testing 2. Historical Perspective of VaR 3. Definition of Value at Risk (VaR) 4. Simple Examples of VaR Calculations Using Normally Distributed Financial Variables 5. VaR for A Portfolio of Non-normally Distributed Assets 6. Limitations of VaR 7. Application of VaR: Risk Control, Senior Management Reporting, Capital Allocation, Performance Measurement; Regulatory Compliance 8. Banking Regulatory Initiatives on VaR 9. Sound Risk Management Practices 10. Proactive Risk Management – Just Say No! Reading Assignments: Chapters 4 and 5 (PJ), RiskMetrics TD, Part I: Risk Measurement Framework Project Milestones: Form a Project Team, Select a Particular Industry or Institution to Analyze. Session 3: Risk Measurement Framework We discuss a practical framework on how to think about market risks, how to apply that thinking in practice, and how to interpret the results. Different approaches to risk estimation are discussed. We show how the calculations work on simple examples and discusses how the results can be used in limit management, performance evaluation, and capital allocation. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. General VaR Framework: Mark-to-Market, Calculate Distribution of Values at Horizon, Calculate VaR Specifying Risk Horizon Time and Confidence Level Specifying Risk Factors in A Portfolio and Their Distribution Mapping Assets to Risk Factors, i.e. Calculating Exposure to Factors Vary Risk Factors Estimate The Changes in Value of Instruments Calculate VaR VaR for Parametric Distributions Conversion of VaR Parameters Reality Checks – How to Verify VaR Application of Risk Measures Reading Assignments: Chapters 5 (PJ), RiskMetrics TD, Part I: Risk Measurement Framework Project Milestones: Initiate Setting Objectives for Your Project, Identify How You Plan to Gather Information or Data. Session 4: Statistics of Financial Market Returns This part requires an understanding and interest in statistical analysis. We review the assumptions behind the statistics used to describe financial market returns and how distributions of future returns can be estimated. 1. 2. 3. 4. 5. Definition of financial price changes and returns Modeling financial prices and returns Investigating the random-walk model A review of historical observations of return distributions RiskMetrics model of financial returns: A modified random walk Reading Assignments: Chapters 9 (PJ), RiskMetrics TD, Part II: Statistics of Financial Market Returns Project Milestones: Finalize Setting Objectives for Your Project. Initiate Fact and Data Gathering. Perform a Literature Search. Session 5: Risk Management for Derivatives Guest Lecturer: Harry Markopolos 1. 2. 3. 4. 5. 6. 7. Linear (future, swap, forward, etc.) and Nonlinear Derivative Instruments (Options) Role of Derivatives in Risk Management Hedging Using Futures and Options Delta-Gamma VaR Analysis Role of Implied Volatility in Risk Management of Derivatives Use of Volatility Swaps as a Hedging Tool Role of Total Return Swaps in Risk Management Reading Assignments: Chapters 6-7 (PJ), RiskMetrics TD, Part II: Risk Measurement Framework Project Milestones: Study Key Literature. Identify Major Risks Addressed in Your Case. Outline Current Approaches to Measure and Manage Risk in the Selected Industry or Institution. Identify and Evaluate Risk Management Systems Currently Used. Session 6: Implementation of Risk Management at A Financial Institutions Guest Lecturer: Edward Dumas Reading Assignments: Chapters 6-7 (PJ), RiskMetrics TD, Part II: Risk Measurement Framework Project Milestones: Study Strengths and Weaknesses of Current Approaches and Practices to Measure and Manage Risk in Your Industry. Identify Key Risk Management Experts in Your Selected Industry or Institution. Session 7. Estimation and Forecast 1. 2. 3. 4. Forecasts from implied versus historical information RiskMetrics forecasting methodology Estimating the parameters of the RiskMetrics model Summary and concluding remarks Reading Assignments: Chapters 9 (PJ), RiskMetrics TD, Part II: Statistics of Financial Market Returns Project Milestones: Prepare a List of Key Questions. Arrange and Conduct Personal Interviews with Key Experts on History, Status, and the Direction of Future Risk Management Practice as It Relates to Your Specific Industry or Institution. Sessions 8-9: Portfolio VaR and Different Approaches to Measuring VaR 1. 2. 3. 4. 5. 6. 7. 8. 9. How to Vary Risk Factors: Variance/Covariance; Implied Variance/Covariance; Historical Simulation; Monte Carlo; Structured Monte Carlo How to Estimate The Changes in Value of Instruments – Local valuation; Full Valuation Dealing with Nonlinear Positions, e.g. options Market risk methodology Step 1—Identifying exposures and cash flows Step 2—Mapping cash flows onto RiskMetrics vertices Step 3—Computing Value-at-Risk Examples Monte Carlo Scenario generation Portfolio valuation Reading Assignments: Chapters 10-11 (PJ), RiskMetrics TD, Part III: Risk Modeling of Financial Instruments Project Milestones: Identify Future Improvements in Risk Management Practices in your Selected Industry or Institution. Identify Challenges in Implementing the Described Improvements. Identify The Benefits of the Proposed Improvements Sessions 10. Credit Risk Management Reading Assignments: Chapters 12 (PJ), CreditMetrics TD. Project Milestones: Report Preparation Sessions 11 Operational Risk Management Assignments: Related Articles. Final take-home exam to be handed out. Project Milestones: Report Preparation Session 12. Summary and Conclusion 1. Project Presentations. Assignments: Project report and final examination due. Useful References: 1. 2. Value at Risk (August 1996), by Philippe Jorion Managing Financial Risk : A Guide to Derivative Products, Financial Engineering and Value (3rd edition, July 1998), by Charles W. Smithson and Clifford W. Smith 3. Derivatives Handbook (May 1997), by Robert Schwartz and Clifford W. Smith, Jr. 4. Swap & Derivative Financing : The Global Reference to Products, Pricing, Applications and Markets (Revised edition, August 1994), by Satyajit Das 5. Options, Futures, and Other Derivatives (3rd w/ disk edition, April 1997), by John C. Hull 6. Managing Credit Risk : The Next Great Financial Challenge (Wiley Frontiers in Finance), by John B. Caouette, Edward I. Altman, Paul Narayanan 7. Handbook of Emerging Fixed Income and Currency Markets (August 1998), by Frank J. Fabozzi (Editor), Alberto Franco (Editor) 8. Fixed Income Mathematics : Analytical & Statistical Techniques (October 1996), by Frank J. Fabozzi 9. Managing Bank Capital: Capital Allocation and Performance Measurement (August 1996), by Chris Matten (SBC) 10. Dynamic hedging (December 1996), by Nassim Taleb 11. CreditMetrics Technical Document - http://www.riskmetrics.com 12. RiskMetrics Technical Document - http://www.riskmetrics.com Regulatory publications: 1. Risk Management and Control Guidance for Securities Firms and their Supervisors IOSCO, May 98, http://risk.ifci.ch/144020.htm 2. Risk Management Guidelines for Derivatives BIS - Basle Committee, Jul. 1994, http://risk.ifci.ch/RMGL.htm 3. Derivatives: Practices and Principles G30 / Global Derivatives Study Group, Jul. 1993, http://risk.ifci.ch/136160.htm 4. Operational Risk Management BIS - Basle Committee, Sept. 1998, http://risk.ifci.ch/144400.htm 5. Capital Adequacy Principles BIS - Basle Committee, Feb. 1998, http://risk.ifci.ch/143520.htm 8. Report of the Committee on Interbank Netting Schemes BIS - Committee on Payment and Settlement Systems of the G-10, Nov. 1990 http://risk.ifci.ch/140810.htm GARP’s Financial Risk Management (FRM) Certification Program The FRM Exam is designed to test for an admixture of basic analytical skills , general knowledge and intuitive capability acquired through experience in capital markets. It focuses on the core body of knowledge required for independent risk management analysis and decision making. This outline establishes the topics in financial risk management with relative weights of those topics in the FRM Exam. Within each topic, general concepts and techniques are also listed. FRM candidates are given 5 hours to complete the examination. 1999 Examination Topics Topic I. Quantitative Analysis II. Capital Markets III. Market Risk Management IV. Credit Risk Management V. Operational & Integrated Risk Management VI. Legal, Accounting, and Tax Risk Management VII. Regulation and Compliance Total I. Quantitative Analysis Time value of money Probability distributions and their properties Correlation and regression analysis Correlation and regression forecasting II. Capital Markets Fixed income derivatives Foreign exchange derivatives Futures, forwards, swaps, and options Equity derivatives Commodity derivatives Emerging markets III. Market Risk Management Interest rate, foreign exchange, equity, commodity risks Emerging market risk Liquidity risk Derivatives risk Portfolio risk VaR Approaches to VaR Parametric VaR Delta-Normal VaR Simulation VaR Stress Testing IV. Credit Risk Management Credit exposure and credit risk Counterparty exposure and countparty risk Default probability and recovery rate Credit rating migration Netting Margin and Collateral Requirements Percentage 15% 15% 25% 25% 5% 5% 10% 100% Pre Settlement Risk Settlement Risk Counterparty Risk Portfolio credit risk Measuring and managing credit risk Credit derivatives V. Operational & Integrated Risk Management Operational risk Policies and procedures Best practices Business structure Firmwide risk management Calculation of risk capital RAROC Model risk Other risks VI. Legal, Accounting, and Tax Risk Management Legal, Accounting, and Tax aspects Legal risk Accounting risk Tax risk VII. Regulation and Compliance BIS Capital Accord (1988) BIS Market Risk Amendment (1996) EU Capital Adequacy Directive Fed Pre-Commitment Model As a practitioner oriented exam, reading textbooks alone will not generally be sufficient to pass the FRM Examination. However, the FRM Examination is based upon the following required references in combination with practical skills and techniques which may not be covered in those references. Familiarity with regulatory publications, such as those listed here, is expected. Optional references maybe used to in the exam to supplement the required references on the general concepts and techniques listed in the FRM Examination Outline. Required references: 13. Value at Risk (August 1996), by Philippe Jorion 14. Managing Financial Risk : A Guide to Derivative Products, Financial Engineering and Value (3rd edition, July 1998), by Charles W. Smithson and Clifford W. Smith 15. Derivatives Handbook (May 1997), by Robert Schwartz and Clifford W. Smith, Jr. 16. Swap & Derivative Financing : The Global Reference to Products, Pricing, Applications and Markets (Revised edition, August 1994), by Satyajit Das 17. Options, Futures, and Other Derivatives (3rd w/ disk edition, April 1997), by John C. Hull 18. Managing Credit Risk : The Next Great Financial Challenge (Wiley Frontiers in Finance), by John B. Caouette, Edward I. Altman, Paul Narayanan 19. Handbook of Emerging Fixed Income and Currency Markets (August 1998), by Frank J. Fabozzi (Editor), Alberto Franco (Editor) 20. Fixed Income Mathematics : Analytical & Statistical Techniques (October 1996), by Frank J. Fabozzi Optional references: 21. Managing Bank Capital: Capital Allocation and Performance Measurement (August 1996), by Chris Matten (SBC) 22. Dynamic hedging (December 1996), by Nassim Taleb 23. CreditMetrics Technical Document - http://www.riskmetrics.com 24. RiskMetrics Technical Document - http://www.riskmetrics.com Regulatory publications: 1. Risk Management and Control Guidance for Securities Firms and their Supervisors IOSCO, May 98, http://risk.ifci.ch/144020.htm 2. Risk Management Guidelines for Derivatives BIS - Basle Committee, Jul. 1994, http://risk.ifci.ch/RMGL.htm 3. Derivatives: Practices and Principles G30 / Global Derivatives Study Group, Jul. 1993, http://risk.ifci.ch/136160.htm 4. Operational Risk Management BIS - Basle Committee, Sept. 1998, http://risk.ifci.ch/144400.htm 5. Capital Adequacy Principles BIS - Basle Committee, Feb. 1998, http://risk.ifci.ch/143520.htm 8. Report of the Committee on Interbank Netting Schemes BIS - Committee on Payment and Settlement Systems of the G-10, Nov. 1990 http://risk.ifci.ch/140810.htm The Practitioner’s Handbook of Financial Risk Management Edited by Marc Lore and Lev Borodovsky Forward ____________________________________________________________ 8 Preface _____________________________________________________________ 8 Executive Summary ___________________________________________________ 8 Introduction to Financial Risk Management _______________________________ 8 What is Financial Risk Management? _______________________________________ 8 Definition _____________________________________________________________________ 8 A Risk Managers Perspective ___________________________________________________ 8 A Traders Perspective _________________________________________________________ 8 A Senior Management Perspective _______________________________________________ 8 A Regulator’s Perspective ______________________________________________________ 8 Risk Control vs. Risk Measurement/Analysis _________________________________________ 8 What are the Responsibilities of the Risk Manager? ___________________________ 8 Understanding the Markets _______________________________________________________ 8 Fixed Income ________________________________________________________________ 8 Equity _____________________________________________________________________ 8 Commodities ________________________________________________________________ 8 Foreign Exchange ____________________________________________________________ 8 Emerging Markets ____________________________________________________________ 8 Understanding the Businesses _____________________________________________________ 8 Market Making ______________________________________________________________ 8 Proprietary Trading ___________________________________________________________ 8 Brokerage __________________________________________________________________ 8 Underwriting / Syndication _____________________________________________________ 8 Lending ____________________________________________________________________ 8 Asset Management ____________________________________________________________ 8 Understanding the Risks _________________________________________________________ 9 Market Risk _________________________________________________________________ 9 Credit Risk __________________________________________________________________ 9 Settlement Risk ______________________________________________________________ 9 Liquidity Risk _______________________________________________________________ 9 Operational Risk _____________________________________________________________ 9 Systems Risk ________________________________________________________________ 9 Documentation Risk __________________________________________________________ 9 Use of VaR? _____________________________________________________________ 9 Risk Control___________________________________________________________________ 9 Senior Management Reporting ____________________________________________________ 9 Capital Allocation ______________________________________________________________ 9 Performance Measurement _______________________________________________________ 9 Regulatory Compliance __________________________________________________________ 9 Implementing a Firm-Wide Risk Management Framework _____________________ 9 The Foundation ________________________________________________________________ 9 The People __________________________________________________________________ 9 The Systems _________________________________________________________________ 9 Senior Management Support ____________________________________________________ 9 The Key Challenges _____________________________________________________________ 9 Risk Primer_________________________________________________________ 10 Quantitative Basics ______________________________________________________ 10 Time Value of Money __________________________________________________________ 10 Present Value _______________________________________________________________ 10 Annuities __________________________________________________________________ 10 Perpetuities ________________________________________________________________ 10 Amortization _______________________________________________________________ 10 Applied Probability ____________________________________________________________ 10 Types of Distributions __________________________________________________________ 10 Normal ____________________________________________________________________ 10 Log Normal ________________________________________________________________ 10 Binomial __________________________________________________________________ 10 Variance/Covariance ___________________________________________________________ 10 Properties of Expectation________________________________________________________ 10 Mean and Standard Deviation ____________________________________________________ 10 Regression/Correlation _________________________________________________________ 10 Skew and Kurtosis _____________________________________________________________ 10 Capital Markets Basics __________________________________________________ 10 Fixed Income _________________________________________________________________ 10 Term Structure of Interest Rates ________________________________________________ 10 Zero Coupon Curves _______________________________________________________ 10 Forward Curves ___________________________________________________________ 10 Bond Sensitivities ___________________________________________________________ 10 Properties of Duration ______________________________________________________ 10 Properties of Convexity _____________________________________________________ 10 Dollar Value of a Basis Point ________________________________________________ 10 Derivatives ___________________________________________________________________ 10 Option Sensitivities __________________________________________________________ 10 Option Mechanics ___________________________________________________________ 10 Futures/Forwards ____________________________________________________________ 10 Swaps _____________________________________________________________________ 10 Market Risk Management Framework ___________________________________ 11 Choosing Appropriate Model Parameters ___________________________________ 11 Confidence Level ______________________________________________________________ 11 Holding Period _______________________________________________________________ 11 Volatility/Correlation___________________________________________________________ 11 GARCH ___________________________________________________________________ 11 Implied ____________________________________________________________________ 11 Historical __________________________________________________________________ 11 Observation Period ________________________________________________________ 11 Weighting _______________________________________________________________ 11 Yield Curves _________________________________________________________________ 11 Beta ________________________________________________________________________ 11 Risk Measurement Methods ______________________________________________ 12 Fixed Income Risk _____________________________________________________________ 12 Covariance Approach ________________________________________________________ 12 Duration Bucketing ________________________________________________________ 12 Cash Flow Bucketing _______________________________________________________ 12 Principle Component Analysis (PCA) ____________________________________________ 12 Historical Simulation _________________________________________________________ 12 Equity Risk __________________________________________________________________ 12 Single Factor Model _________________________________________________________ 12 Multi-Factor Model __________________________________________________________ 12 FX Risk _____________________________________________________________________ 12 Commodity Risk ______________________________________________________________ 12 Gamma Risk _________________________________________________________________ 12 Delta Normal _______________________________________________________________ 12 Taylor Series _______________________________________________________________ 12 Exact Delta-Gamma __________________________________________________________ 12 Full - Repricing _____________________________________________________________ 12 Vega Risk ___________________________________________________________________ 12 Factor Push ________________________________________________________________ 12 Volatility of Implied Volatility _________________________________________________ 12 Pre-payment Variance Risk ______________________________________________________ 12 Specific Risk _________________________________________________________________ 12 Bond Specific Model _________________________________________________________ 12 Equity Specific Model ________________________________________________________ 12 Other Specific Risk Models (Real Estate, etc.) _____________________________________ 12 Concentration Risk ____________________________________________________________ 12 Practical Application of Market Risk Management Methods ___________________ 13 Foreign Exchange _____________________________________________________________ 13 Exotic Currencies ___________________________________________________________ 13 Convertibility Risk _________________________________________________________ 13 Basket Currencies ___________________________________________________________ 13 Pegged Currencies ___________________________________________________________ 13 Event Risk _______________________________________________________________ 13 Currency Swaps _____________________________________________________________ 13 Spot/Forward/Currency Futures _________________________________________________ 13 Tail Risk ________________________________________________________________ 13 Risk of Currency Crosses (Cross gamma/vega, etc.) _______________________________ 13 Equity ______________________________________________________________________ 13 Convertible Bond Risk Components _____________________________________________ 13 Deal Break-up Risk __________________________________________________________ 13 Index Arbitrage _____________________________________________________________ 13 Tracking Risk ____________________________________________________________ 13 Basis Risk _______________________________________________________________ 13 ADRs inherent F/X Risk ______________________________________________________ 13 Country of Issue vs. Country of Exchange_________________________________________ 13 Fixed Income _________________________________________________________________ 13 Global Government Securities Risk ______________________________________________ 13 Repurchase Market “Repos” _________________________________________________ 13 Mortgage-Backed Securities ___________________________________________________ 13 Mortgage-Backed Bonds ____________________________________________________ 13 Pass-Through Securities ____________________________________________________ 13 Collateralized Mortgage Obligations ___________________________________________ 13 Stripped-Mortgage Backed Securities __________________________________________ 13 Corporate Bonds Spread Risk __________________________________________________ 13 Interest Rate Swaps __________________________________________________________ 13 Emerging Markets _____________________________________________________________ 13 Brady Bonds/Eurobonds ______________________________________________________ 13 Local Currency Debt _________________________________________________________ 13 Event Risk _________________________________________________________________ 13 Derivatives ___________________________________________________________________ 13 Stock Index Options _________________________________________________________ 13 Vanilla Options _____________________________________________________________ 13 Bond Future Options _________________________________________________________ 13 Barrier Options _____________________________________________________________ 13 Swaptions__________________________________________________________________ 13 IR Caps & Floors ____________________________________________________________ 13 Index Principal Swaps and Other Structured Swaps _________________________________ 13 Credit Risk Management Framework ____________________________________ 13 Choosing Appropriate Model Parameters ___________________________________ 14 Obligor Credit Rating __________________________________________________________ 14 Credit Scoring ______________________________________________________________ 14 Rating Agencies _____________________________________________________________ 14 S&P ____________________________________________________________________ 14 Moodys _________________________________________________________________ 14 Probabilities __________________________________________________________________ 14 Credit Migration Probabilities __________________________________________________ 14 Path Dependency of Credit Migration ____________________________________________ 14 Probability of Default ________________________________________________________ 14 Historical Actual __________________________________________________________ 14 Historical Modified ________________________________________________________ 14 Option on Underlying Value _________________________________________________ 14 Cumulative Default Rates _____________________________________________________ 14 Marginal Default Rates _______________________________________________________ 14 Joint Probability of Default ____________________________________________________ 14 Recovery Values ______________________________________________________________ 14 Static Recover Values ________________________________________________________ 14 Subordinated Debt _________________________________________________________ 14 Un-Subordinated Debt ______________________________________________________ 14 Distribution of Recover Values _________________________________________________ 14 Credit Risk Management Methodology _____________________________________ 14 Single Obligor ________________________________________________________________ 14 Expected Loss ______________________________________________________________ 14 Worst Case_________________________________________________________________ 14 Multiple Obligors _____________________________________________________________ 14 Monte Carlo Simulation_______________________________________________________ 14 Basic Approach _____________________________________________________________ 14 Credit Metrics Approach ______________________________________________________ 14 KMV Approach _____________________________________________________________ 14 Credit Enhancements ___________________________________________________________ 14 Collateral __________________________________________________________________ 14 Identifying Appropriate Collateral _____________________________________________ 14 Risk-Free Haircut__________________________________________________________ 14 Margin call/Maintenance Margin______________________________________________ 14 Guarantor __________________________________________________________________ 14 Netting vs. Non-Netting Counterparties ____________________________________________ 14 Bi-Lateral __________________________________________________________________ 14 Multi-Lateral _______________________________________________________________ 14 Pre-Settlement Netting ________________________________________________________ 14 Integrating Market and Credit Risk ________________________________________ 15 Correlation Between Market and Credit Risk ________________________________________ 15 Calculating Potential Exposure ___________________________________________________ 15 Replacement Value Approach __________________________________________________ 15 Mark to Market plus Add-On __________________________________________________ 15 Joint Distribution ____________________________________________________________ 15 Practical Application of Credit Risk Management Methods ____________________ 15 OTC Derivatives ______________________________________________________________ 15 Interest Rate Swaps __________________________________________________________ 15 FX Forwards _______________________________________________________________ 15 Settlement Risk ___________________________________________________________ 15 Options ___________________________________________________________________ 15 Long ____________________________________________________________________ 15 Short ___________________________________________________________________ 15 Emerging Market Derivatives __________________________________________________ 15 Corporate Bonds ______________________________________________________________ 15 Loans _______________________________________________________________________ 15 Non-Performing _____________________________________________________________ 15 Lines of Credit ______________________________________________________________ 15 Reverse Repos ________________________________________________________________ 15 Credit Derivatives _____________________________________________________________ 15 Emerging Market Securities _____________________________________________________ 15 Local Currency _____________________________________________________________ 15 Foreign Currency ____________________________________________________________ 15 Operational Risk Management Framework _______________________________ 15 Operational Risk ________________________________________________________ 15 Operating Leverage _____________________________________________________ 15 Operating Failure _______________________________________________________ 15 Strategic Risk_________________________________________________________________ 15 Business Disruption __________________________________________________________ 15 Competitor Strateg ___________________________________________________________ 15 Political Developments _______________________________________________________ 15 Regulations ________________________________________________________________ 15 Tax _______________________________________________________________________ 16 Business Processing Risk________________________________________________________ 16 Breakdown or Ineffective Process _______________________________________________ 16 Human Errors ______________________________________________________________ 16 Faulty Internal or External Reporting 4Model Risk__________________________________ 16 Model Appropriateness Risk _________________________________________________ 16 Model Accuracy___________________________________________________________ 16 Technology and Infrastructure __________________________________________________ 16 Non Compliance with Laws __________________________________________________ 16 Practical Applications of Operational Risk Management Methods ______________ 16 Operational Risk Policies _______________________________________________________ 16 Model Vetting ______________________________________________________________ 16 Off-hour Trading ____________________________________________________________ 16 Off-market Trading __________________________________________________________ 16 Off-premises Trading_________________________________________________________ 16 Legal Document Vetting ______________________________________________________ 16 Business Process Maps _________________________________________________________ 16 Reporting and Monitoring _______________________________________________________ 16 Risk Analysis and Stress Testing __________________________________________________ 16 Economic Capital / Operational RAROC ___________________________________________ 16 Management of Operational Risks in Derivatives _____________________________________ 16 Policy _____________________________________________________________________ 16 Structure __________________________________________________________________ 16 Personnel __________________________________________________________________ 16 Reports____________________________________________________________________ 16 Accountability ______________________________________________________________ 16 Management of Operational Risks in Foreign Exchange ________________________________ 16 Deal/Trade Capture __________________________________________________________ 16 Confirmation _______________________________________________________________ 16 Netting ____________________________________________________________________ 16 Settlement _________________________________________________________________ 16 Nostro Reconciliation ________________________________________________________ 16 Accounting/Financial Control __________________________________________________ 16 General Best Practices ___________________________________________________ 16 Testing the Assumptions ______________________________________________ 16 Stress Testing __________________________________________________________ 16 Definition ______________________________________________________________ 17 The Need for Stress Testing _____________________________________________________ 17 Selecting Appropriate Market Events ______________________________________________ 17 Historical __________________________________________________________________ 17 Forward Looking ____________________________________________________________ 17 Worst Case_________________________________________________________________ 17 Types of Scenarios_____________________________________________________________ 17 Macro Economic Scenarios ____________________________________________________ 17 Effects on prices __________________________________________________________ 17 Effects on Interest rates,_____________________________________________________ 17 Effects on F/X rates, _______________________________________________________ 17 Effects on Implied Volatility _________________________________________________ 17 Micro Scenarios _____________________________________________________________ 17 Basis Spreads _____________________________________________________________ 17 Yield Curve/ Commodity Curve Spreads________________________________________ 17 Pre-Payment Rate Assumptions _______________________________________________ 17 Dividend Assumptions ______________________________________________________ 17 Convertibility Assumptions __________________________________________________ 17 Credit Scenarios_____________________________________________________________ 17 Stress Testing the Assumptions ___________________________________________________ 17 Volatility/Correlation _________________________________________________________ 17 Default Probabilities _________________________________________________________ 17 Recover Values _____________________________________________________________ 17 Liquidation Periods __________________________________________________________ 17 Distribution Shape ___________________________________________________________ 17 Back-Testing ___________________________________________________________ 17 Definition ______________________________________________________________ 17 The Need for Back Testing ______________________________________________________ 17 Selecting Appropriate Parameters for Testing ________________________________________ 17 Confidence Level ____________________________________________________________ 17 Time Period ________________________________________________________________ 17 Cleaning P/L _________________________________________________________________ 17 Elimination of Intra-day P/L ___________________________________________________ 17 Synthetic P/L _______________________________________________________________ 17 Analyzing the Results __________________________________________________________ 17 Limitations of Back -Testing _____________________________________________________ 17 Event Risk _________________________________________________________________ 17 Credit Risk _________________________________________________________________ 17 Basis Risk _________________________________________________________________ 17 Intra-day Activity____________________________________________________________ 18 Other Sources of Risk ________________________________________________ 18 Liquidity Risk __________________________________________________________ 18 Adjusting VaR for Market Liquidity _______________________________________________ 18 Funding Liquidity Risk _______________________________________________________ 18 Market Liquidity Risk ________________________________________________________ 18 Bid/Ask Spread ___________________________________________________________ 18 Adjusting VaR for Credit Liquidity Risk ____________________________________________ 18 Securities __________________________________________________________________ 18 Loans _____________________________________________________________________ 18 Systems Risk ___________________________________________________________ 18 Understanding the End-User Needs ________________________________________________ 18 Traders ____________________________________________________________________ 18 Risk Management ___________________________________________________________ 18 Operations and Control _______________________________________________________ 18 Data Issues ___________________________________________________________________ 18 Securing Data ______________________________________________________________ 18 Ensuring Integrity of Data _____________________________________________________ 18 Extracting and Mapping Data __________________________________________________ 18 Aggregating Data ____________________________________________________________ 18 Quantifying Systems Risk _______________________________________________________ 18 Tax Risk _______________________________________________________________ 18 Accounting Risk ________________________________________________________ 18 Accrual vs. Mark to Markets _____________________________________________________ 18 Balance Sheet vs. Trading Accounts _______________________________________________ 18 Hedge Accounting _____________________________________________________________ 18 Option Accounting_____________________________________________________________ 18 Model Risk_____________________________________________________________ 18 Understanding Model Risk ______________________________________________________ 18 Model Error Characteristics______________________________________________________ 18 Assessing the Impact of model Risk _______________________________________________ 18 Risk Capital Framework ______________________________________________ 19 Economic Risk Capital ___________________________________________________ 19 Definition ____________________________________________________________________ 19 Regulatory vs. Economic Risk Capital _____________________________________________ 19 Measuring Economic Capital _____________________________________________ 19 Market Risk Capital ____________________________________________________________ 19 Credit Risk Capital ____________________________________________________________ 19 Other Financial Risks __________________________________________________________ 19 Specific Risk _______________________________________________________________ 19 Liquidity Risk ______________________________________________________________ 19 Other Risks __________________________________________________________________ 19 Operational Risk ____________________________________________________________ 19 Systems Risk _______________________________________________________________ 19 Settlement Risk _____________________________________________________________ 19 Controlling Risk Capital _________________________________________________ 20 Risk Limits __________________________________________________________________ 20 VaR Limits ________________________________________________________________ 20 DV01, 1-year Equivalent, Futures Equivalent ______________________________________ 20 Greek Limits _______________________________________________________________ 20 Credit Based _______________________________________________________________ 20 Position Limits ________________________________________________________________ 20 Market Value _______________________________________________________________ 20 Notional ___________________________________________________________________ 20 Other Limits __________________________________________________________________ 20 Stop-loss Limits _____________________________________________________________ 20 Maturity Gap Limits _________________________________________________________ 20 Liquidity Limits _____________________________________________________________ 20 Counterparty Credit Limits ____________________________________________________ 20 Managing Economic Capital ______________________________________________ 20 Risk Appetite _________________________________________________________________ 20 Attribution of Capital to the Businesses ____________________________________________ 20 Allocation of Economic Capital __________________________________________________ 20 Assessing Risk-Adjusted Performance ______________________________________ 20 Provisioning __________________________________________________________________ 20 Planned Vs Actual Usage _______________________________________________________ 20 Attribution of Income __________________________________________________________ 20 Marginal Risk Capital __________________________________________________________ 20 Linking Capital Allocation and Reward Structures ___________________________ 20 Creating the Right Incentives_____________________________________________________ 20 Trader Bonuses _______________________________________________________________ 20 Regulation _________________________________________________________ 21 Regulatory Approaches to Risk Management ________________________________ 21 Standard Model _______________________________________________________________ 21 Internal Model ________________________________________________________________ 21 Pre-Commitment Model ________________________________________________________ 21 Internal Model Requirements _____________________________________________ 21 Model Parameters _____________________________________________________________ 21 Risk Measurement Methodology __________________________________________________ 21 Specific Risk _______________________________________________________________ 21 Credit Risk _________________________________________________________________ 21 Market Risk ________________________________________________________________ 21 Back-Testing _________________________________________________________________ 21 Stress Testing_________________________________________________________________ 21 Internal Controls ______________________________________________________________ 21 Implications of the Models ________________________________________________ 21 Large Banks __________________________________________________________________ 21 Small Banks __________________________________________________________________ 21 Other Financial Institutions ______________________________________________________ 21 Securities Firms _______________________________________________________________ 21 Investment Funds ______________________________________________________________ 21 Primary Concerns of Regulators __________________________________________ 21 Systemic Risk ________________________________________________________________ 21 Operations Risk _______________________________________________________________ 21 Concluding Remarks _________________________________________________ 21 Lessons from Jerry Corrigan on Financial Crises Goldman Sachs Conference, May 2, 1999 (Jerry became a Goldman Partner several years ago after 25 years at the federal reserve, where he served as the head of the highly influential NY Federal reserve Bank. His mentor was Paul Volker.) 1. Asia, Russian, 1987’s Crash: Events of this nature are not once-in-a-lifetime events; despite quantitative studies. They will occur again and again. 2. If last Fall was a 6 on the Richter scale, 7’s can occur. (N.B., the Richter scale is logarithmic.) 3. When the wheels start to come off, all the distinctions between market and credit risks disappear and the market decline impacts almost everything. 4. When this happens, market and instrument liquidity disappears. 5. This loss of liquidity makes volatility increase and prices drop astronomically. 6. Have to worry about illusion of security e.g., collateral, diversification, etc. When crises hit, they provide little protection. 7. Any lender who takes comfort in collateral will be very disappointed in reality when crisis occurs, the value of collateral will not be what you thought it would be. 8. Quantitative risk numbers like VAR, standard deviation, etc. are still based on past and therefore subject to likely surprises. 9. Flaws in institutional and legal infrastructures are very significant in causing crises and are prevalent in emerging market countries and in many so-called developed countries, e.g., Japan.