Extreme events robust portfolio construction in the presence of fat tails /

Extreme events robust portfolio construction in the presence of fat tails /

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"With slight exaggeration, a case can be made that modern finance has been built, in practice, if not in theory, on implicit tolerance and widespread ignorance of extreme events. Jean Pierre Landau, Deputy Governor, Banque du France Markets are fat-tailed; extreme outcomes occur more often than...

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Bibliographic Details
Main Author: Kemp, Malcolm H. D.
Corporate Author: ebrary, Inc
Format: Electronic eBook
Language:English
Published: Hoboken, N.J. : Wiley, 2011.
Series:Wiley finance series.
Subjects:
Exchange traded funds.
Portfolio management.
Electronic books.
Online Access:An electronic book accessible through the World Wide Web; click to view
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Table of Contents:
  • Machine generated contents note: Preface
  • Acknowledgements
  • Abbreviations
  • Notation
  • 1 Introduction
  • 1.1 Extreme events
  • 1.2 The portfolio construction problem
  • 1.3 Coping with really extreme events
  • 1.4 Risk budgeting
  • 1.5 Elements designed to maximise benefit to readers
  • 1.6 Book structure
  • 2. Fat Tails - In Single (i.e. Univariate) Return Series
  • 2.1 Introduction
  • 2.2 A fat tail relative to what?
  • 2.3 Empirical examples of fat-tailed behaviour in return series
  • 2.4 Characterising fat-tailed distributions by their moments
  • 2.5 What causes fat tails?
  • 2.6 Lack of diversification
  • 2.7 A time-varying world
  • 2.8 Stable distributions
  • 2.9 Extreme value theory (EVT)
  • 2.10 Parsimony
  • 2.11 Combining different possible source mechanisms
  • 2.12 The practitioner perspective
  • 2.13 Implementation challenges
  • 3. Fat Tails - In Joint (i.e. Multivariate) Return Series
  • 3.1 Introduction
  • 3.2 Visualisation of fat tails in multiple return series
  • 3.3 Copulas and marginals - Sklar's theorem
  • 3.4 Example analytical copulas
  • 3.5 Empirical estimation of fat tails in joint return series
  • 3.6 Causal dependency models
  • 3.7 The practitioner perspective
  • 3.8 Implementation challenges
  • 4. Identifying Factors That Significantly Influence Markets
  • 4.1 Introduction
  • 4.2 Portfolio risk models
  • 4.3 Signal extraction and principal components analysis
  • 4.4 Independent Components Analysis
  • 4.5 Blending together PCA and ICA
  • 4.6 The potential importance of selection effects
  • 4.7 Market dynamics
  • 4.8 Distributional mixtures
  • 4.9 The practitioner perspective
  • 4.10 Implementation challenges
  • 5. Traditional Portfolio Construction Techniques
  • 5.1 Introduction
  • 5.2 Quantitative versus qualitative approaches?
  • 5.3 Risk-return optimisation
  • 5.4 More general features of mean-variance optimisation
  • 5.5 Manager Selection
  • 5.6 Dynamic optimisation
  • 5.7 Portfolio construction in the presence of transaction costs
  • 5.8 Risk budgeting
  • 5.9 Backtesting portfolio construction techniques
  • 5.10 Reverse optimisation and implied view analysis
  • 5.11 Portfolio optimisation with options
  • 5.12 The practitioner perspective
  • 5.13 Implementation challenges
  • 6. Robust Mean-Variance Portfolio Construction
  • 6.1 Introduction
  • 6.2 Sensitivity to the input assumptions
  • 6.3 Certainty equivalence, credibility weighting and Bayesian statistics
  • 6.4 Traditional robust portfolio construction approaches
  • 6.5 Shrinkage
  • 6.6 Bayesian approaches applied to position sizes
  • 6.7 The 'universality' of Bayesian approaches
  • 6.8 Market consistent portfolio construction
  • 6.9 Re-sampled mean-variance portfolio optimisation
  • 6.10 The practitioner perspective
  • 6.11 Implementation challenges
  • 7. Regime Switching and Time-Varying Risk and Return Parameters
  • 7.1 Introduction
  • 7.2 Regime switching
  • 7.3 Investor utilities
  • 7.4 Optimal portfolio allocations for regime switching models
  • 7.5 Links with derivative pricing theory
  • 7.6 Transaction costs
  • 7.7 Incorporating more complex autoregressive behaviour
  • 7.8 Incorporating more intrinsically fat-tailed behaviour
  • 7.9 More heuristic ways of handling fat tails
  • 7.10 The practitioner perspective
  • 7.11 Implementation challenges
  • 8. Stress Testing
  • 8.1 Introduction
  • 8.2 Limitations of current stress testing methodologies
  • 8.3 Traditional stress testing approaches
  • 8.4 Reverse stress testing
  • 8.5 Taking due account of stress tests in portfolio construction
  • 8.6 Designing stress tests statistically
  • 8.7 The practitioner perspective
  • 8.8 Implementation challenges
  • 9. Really Extreme Events
  • 9.1 Introduction
  • 9.2 Thinking outside the box
  • 9.3 Portfolio purpose
  • 9.4 Uncertainty as a fact of life
  • 9.5 Market implied data
  • 9.6 The importance of good governance and operational management
  • 9.7 The practitioner perspective
  • 9.8 Implementation challenges
  • 10. The Final Word
  • 10.1 Conclusions
  • 10.2 Portfolio construction principles in the presence of fat tails
  • Appendix: Exercises
  • A.1 Introduction
  • A.2 Fat Tails - In Single (i.e. Univariate) Return Series
  • A.3 Fat Tails - In Joint (i.e. Multivariate) Return Series
  • A.4 Identifying Factors That Significantly Influence Markets
  • A.5 Traditional Portfolio Construction Techniques
  • A.6 Robust Mean-Variance Portfolio Construction
  • A.7 Regime Switching and Time-Varying Risk and Return Parameters
  • A.8 Stress Testing
  • A.9 Really Extreme Events.

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