SKEWED LEVY MODELS AND IMPLIED VOLATILITY SKEW

被引:1
|
作者
De Olivera, Federico [1 ]
Fajardo, Jose [2 ]
Mordecki, Ernesto [3 ]
机构
[1] Consejo Formac Educ, Ctr Reg Prof Sur, Dept Matemat, Atlantida, Uruguay
[2] Getulio Vargas Fdn, Brazilian Sch Publ & Business Adm, Rio De Janeiro, Brazil
[3] Univ Republica, Fac Ciencias, Ctr Matemat, Montevideo, Uruguay
关键词
Skewness; Levy processes; implied volatility smirk;
D O I
10.1142/S0219024918500036
中图分类号
F8 [财政、金融];
学科分类号
0202 ;
摘要
We introduce skewed Levy models, characterized by a symmetric jump measure multiplied by a damping exponential factor. These models exhibit a clear implied volatility pattern, where the damping parameter controls the implied volatility curve's skew, resulting in a measure of the model's skewness. We show that the variation of this parameter produces the typical smirk observed in implied volatility curves. Some theoretical facts supporting these findings are proved.
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页数:16
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