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The article describes a global and arbitrage-free parametrization of the eSSVI surfaces introduced by Hendriks and Martini in 2019. A robust calibration of such surfaces has already been proposed by the quantitative research team at Zeliade in 2019, but it is sequential in expiries and lacks of...
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The volatility of financial markets has attracted a lot of attention in recent years. However, while particular … that markets have become more volatile, there appears to have been no systematic increase in volatility over the last 20 …
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