Experience
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Article
Consistent equity risk-neutral valuation under climate stress tests
02 February 2024 - by Sophian Mehalla, Grzegorz Darkiewicz, Michał Krzemiński, Céline Francony
With a proper granularity of modeling, shocks prescribed by European regulators related to climate transition risk can be applied to estimate ALM impacts.
Article
Cosine densities approximations: Applications to swaptions pricing
09 August 2023 - by Sophian Mehalla, Lucien Morice
We look at an alternative pricing method based on density cosine-series approximation applied to swaptions, which offers a significant gain in computation time.
Article
The impact of carbon risk factor on equity dynamics
14 October 2022 - by Alexandre Boumezoued, Sophian Mehalla, Valentin Germain
With better understanding of climate transition risk exposure and stress tests proposed by regulators, internal models can help provide insights.
Article
Neural network calibration of the DDSVLMM interest rates model, and application to weights calculation
29 November 2021 - by Pierre-Edouard Arrouy, Paul Bonnefoy, Alexandre Boumezoued, Yousra Cherkaoui Tangi, Grzegorz Darkiewicz, Sophian Mehalla
We present a calibration technique for one complex risk neutral model, relying on neural networks and significantly reducing computational time.
Article
Challenges in the calibration of real world models within Economic Scenarios Generators
16 September 2021 - by Hervé Andrès, Pierre-Edouard Arrouy, Paul Bonnefoy, Alexandre Boumezoued, Sophian Mehalla, Julien Vedani
Learn why the best economic scenario generator solution provides the choice of different methods and what challenges real world models pose.