Introduction |
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vii | |
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Chapter 1 Optimization Problems |
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1 | (44) |
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1.1 Portfolio optimization problem |
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2 | (9) |
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2 | (3) |
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1.1.2 Optimization problem |
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5 | (2) |
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1.1.3 Examples of utility functions |
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7 | (4) |
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11 | (12) |
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1.2.1 Change of probability measures |
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13 | (1) |
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1.2.2 Dual optimization problem |
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13 | (5) |
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18 | (5) |
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1.3 Dynamic programming principle |
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23 | (5) |
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1.4 Several explicit examples |
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28 | (11) |
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28 | (5) |
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1.4.2 Brownian setting with additive utility weight |
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33 | (6) |
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1.5 Brownian-Poisson filtration with general utility weights |
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39 | (6) |
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1.5.1 Logarithmic utility |
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42 | (3) |
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Chapter 2 Enlargement of Filtration |
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45 | (26) |
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2.1 Conditional law and density hypothesis |
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46 | (5) |
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2.2 Initial enlargement of filtration |
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51 | (9) |
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2.2.1 Martingales of the enlarged filtration |
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52 | (5) |
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2.2.2 Example of a Brownian-Poisson filtration and information drift |
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57 | (1) |
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2.2.3 Noisy initial enlargements |
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58 | (2) |
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2.3 Progressive enlargement of filtration |
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60 | (11) |
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2.3.1 Conditional expectation |
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62 | (2) |
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2.3.2 Right-continuity of the enlarged filtration |
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64 | (2) |
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2.3.3 Martingale characterization |
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66 | (3) |
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2.3.4 Dynamic enlargement with a process |
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69 | (2) |
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Chapter 3 Portfolio Optimization with Credit Risk |
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71 | (70) |
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73 | (8) |
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73 | (6) |
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3.1.2 The optimization problem |
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79 | (2) |
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3.2 Direct method with the logarithmic utility |
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81 | (2) |
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3.3 Optimization for standard investor: power utility |
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83 | (23) |
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3.3.1 Decomposition of the optimization problem |
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84 | (4) |
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3.3.2 Solution to the after-default optimization problem |
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88 | (3) |
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3.3.3 Resolution of the before-default optimization problem |
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91 | (10) |
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3.3.4 Example and numerical illustrations |
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101 | (5) |
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3.4 Decomposition method with the exponential utility |
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106 | (7) |
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3.5 Optimization with insider's information |
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113 | (20) |
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3.5.1 Insider's optimization problem |
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114 | (5) |
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3.5.2 Decomposition of the optimization problem |
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119 | (8) |
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3.5.3 The logarithmic utility case |
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127 | (2) |
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129 | (4) |
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3.6 Numerical illustrations |
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133 | (8) |
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Chapter 4 Portfolio Optimization with Information Asymmetry |
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141 | (24) |
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143 | (4) |
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4.1.1 Risk neutral probabilities measures for insider |
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145 | (2) |
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4.1.2 Solution of the optimization problem |
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147 | (1) |
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4.2 Optimal strategies in some examples of side-information |
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147 | (10) |
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4.2.1 Initial strong insider |
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147 | (2) |
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4.2.2 There exist i, 1 ≤ i ≤ d, such that L = 1[ a,b](Si/T'), 0 < a < b |
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149 | (6) |
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4.2.3 L = log(Si1/T') -- log(Si2/T') |
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155 | (2) |
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4.3 Numerical illustrations |
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157 | (8) |
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4.3.1 L = 1[ a,b](S1/T'), 0 < a < b |
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158 | (1) |
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4.3.2 L = log(S1/T') -- log(S2/T') |
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159 | (1) |
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160 | (1) |
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4.3.4 L = log(S1/T') -- log(S2/T') |
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160 | (5) |
Bibliography |
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165 | (10) |
Index |
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175 | |