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FABIO GOBBI is a post-doctoral researcher at the University of Bologna. He has a PhD in Statistics from the University of Florence and his areas of research focus on probability and financial econometrics. This is his first book.
SABRINA MULINACCI is Associate Professor of Mathematical Methods for Economics and Finance at the University of Bologna, Italy. Prior to this Sabrina was Associate Professor of Mathematical Methods for Economics and Actuarial Sciences at the Catholic University of Milan. She has a PhD in Mathematics from the University of Pisa and has published a number of research papers in international journals on probability and mathematical finance. She is co-author of Fourier Transform Methods in Finance, John Wiley & Sons, Ltd, 2009.
SILVIA ROMAGNOLI is Assistant Professor of Mathematical Models for Economics and Actuarial and Financial Sciences at the University of Bologna. Her scientific research is mainly addressed to the applications of stochastic models to finance and insurance. She has published several research papers in international journals on mathematical finance.
Preface | p. ix |
Correlation Risk in Finance | p. 1 |
Correlation Risk in Pricing and Risk Management | p. 1 |
Implied vs Realized Correlation | p. 3 |
Bottom-up vs Top-down Models | p. 4 |
Copula Functions | p. 4 |
Spatial and Temporal Dependence | p. 5 |
Long-range Dependence | p. 5 |
Multivariate GARCH Models | p. 7 |
Copulas and Convolution | p. 8 |
Copula Functions: The State of the Art | p. 11 |
Copula Functions: The Basic Recipe | p. 11 |
Market Co-movements | p. 14 |
Delta Hedging Multivariate Digital Products | p. 16 |
Linear Correlation | p. 19 |
Rank Correlation | p. 20 |
Multivariate Spearman's Rho | p. 22 |
Survival Copulas and Radial Symmetry | p. 23 |
Copula Volume and Survival Copulas | p. 24 |
Tail Dependence | p. 27 |
Long/Short Correlation | p. 27 |
Families of Copulas | p. 29 |
Elliptical Copulas | p. 29 |
Archimedean Copulas | p. 31 |
Kendall Function | p. 33 |
Exchangeability | p. 34 |
Hierarchical Copulas | p. 35 |
Conditional Probability and Factor Copulas | p. 39 |
Copula Density and Vine Copulas | p. 42 |
Dynamic Copulas | p. 45 |
Conditional Copulas | p. 45 |
Pseudo-copulas | p. 46 |
Copula Functions and Asset Price Dynamics | p. 49 |
The Dynamics of Speculative Prices | p. 49 |
Copulas and Markov Processes: The DNO approach | p. 51 |
The * and * Product Operators | p. 52 |
Product Operators and Markov Processes | p. 55 |
Self-similar Copulas | p. 58 |
Simulating Markov Chains with Copulas | p. 62 |
Time-changed Brownian Copulas | p. 63 |
CEV Clock Brownian Copulas | p. 64 |
VG Clock Brownian Copulas | p. 65 |
Copulas and Martingale Processes | p. 66 |
C-Convolution | p. 67 |
Markov Processes with Independent Increments | p. 75 |
Markov Processes with Dependent Increments | p. 78 |
Extracting Dependent Increments in Markov Processes | p. 81 |
Martingale Processes | p. 83 |
Multivariate Processes | p. 86 |
Multivariate Markov Processes | p. 86 |
Granger Causality and the Martingale Condition | p. 88 |
Copula-based Econometrics of Dynamic Processes | p. 91 |
Dynamic Copula Quantile Regressions | p. 91 |
Copula-based Markov Processes: Non-linear Quantile Autoregression | p. 93 |
Copula-based Markov Processes: Semi-parametric Estimation | p. 99 |
Copula-based Markov Processes: Non-parametric Estimation | p. 108 |
Copula-based Markov Processes: Mixing Properties | p. 110 |
Persistence and Long Memory | p. 113 |
C-convolution-based Markov Processes: The Likelihood Function | p. 116 |
Multivariate Equity Products | p. 121 |
Multivariate Equity Products | p. 121 |
European Multivariate Equity Derivatives | p. 122 |
Path-dependent Equity Derivatives | p. 125 |
Recursions of Running Maxima and Minima | p. 126 |
The Memory Feature | p. 130 |
Risk-neutral Pricing Restrictions | p. 132 |
Time-changed Brownian Copulas | p. 133 |
Variance Swaps | p. 135 |
Semi-parametric Pricing of Path-dependent Derivatives | p. 136 |
The Multivariate Pricing Setting | p. 137 |
H-Condition and Granger Causality | p. 137 |
Multivariate Pricing Recursion | p. 138 |
Hedging Multivariate Equity Derivatives | p. 141 |
Correlation Swaps | p. 144 |
The Term Structure of Multivariate Equity Derivatives | p. 147 |
Altiplanos | p. 148 |
Everest | p. 150 |
Spread Options | p. 150 |
Multivariate Credit Products | p. 153 |
Credit Transfer Finance | p. 153 |
Univariate Credit Transfer Products | p. 154 |
Multivariate Credit Transfer Products | p. 155 |
Credit Information: Equity vs CDS | p. 158 |
Structural Models | p. 160 |
Univariate Model: Credit Risk as a Put Option | p. 160 |
Multivariate Model: Gaussian Copula | p. 161 |
Large Portfolio Model: Vasicek Formula | p. 163 |
Intensity-based Models | p. 164 |
Univariate Model: Poisson and Cox Processes | p. 165 |
Multivariate Model: Marshall-Olkin Copula | p. 165 |
Homogeneous Model: Cuadras Augé Copula | p. 167 |
Frailty Models | p. 170 |
Multivariate Model: Archimedean Copulas | p. 170 |
Large Portfolio Model: Schönbucher Formula | p. 171 |
Granularity Adjustment | p. 171 |
Credit Portfolio Analysis | p. 172 |
Semi-unsupervised Cluster Analysis: K-means | p. 172 |
Unsupervised Cluster Analysis: Kohonen Self-organizing Maps | p. 174 |
(Semi-)unsupervised Cluster Analysis: Hierarchical Correlation Model | p. 175 |
Dynamic Analysis of Credit Risk Portfolios | p. 176 |
Risk Capital Management | p. 181 |
A Review of Value-at-Risk and Other Measures | p. 181 |
Capital Aggregation and Allocation | p. 185 |
Aggregation: C-Convolution | p. 187 |
Allocation: Level Curves | p. 189 |
Allocation with Constraints | p. 191 |
Risk Measurement of Managed Portfolios | p. 193 |
Henriksson-Merton Model | p. 195 |
Semi-parametric Analysis of Managed Funds | p. 200 |
Market-neutral Investments | p. 201 |
Temporal Aggregation of Risk Measures | p. 202 |
The Square-root Formula | p. 203 |
Temporal Aggregation by C-convolution | p. 203 |
Frontier Issues | p. 207 |
L'evy Copulas | p. 207 |
Pareto Copulas | p. 210 |
Semi-martingale Copulas | p. 212 |
A Elements of Probability | p. 215 |
Elements of Measure Theory | p. 215 |
Integration | p. 216 |
Expected Values and Moments | p. 217 |
The Moment-generating Function or Laplace Transform | p. 218 |
The Characteristic Function | p. 219 |
Relevant Probability Distributions | p. 219 |
Random Vectors and Multivariate Distributions | p. 224 |
The Multivariate Normal Distribution | p. 225 |
Infinite Divisibility | p. 226 |
Convergence of Sequences of Random Variables | p. 228 |
The Strong Law of Large Numbers | p. 229 |
The Radon-Nikodym Derivative | p. 229 |
Conditional Expectation | p. 229 |
Elements of Stochastic Processes Theory | p. 231 |
Stochastic Processes | p. 231 |
Filtrations | p. 231 |
Stopping Times | p. 232 |
Martingales | p. 233 |
Markov Processes | p. 234 |
Lévy Processes | p. 237 |
Subordinators | p. 240 |
Semi-martingales | p. 240 |
References | p. 245 |
Extra Reading | p. 251 |
Index | p. 259 |
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