PROFESSIONAL EXPERIENCE 2014-present Head of Risk and Capital Modelling, Société Générale, Paris 2010-2014 Head Economic and regulatory capital, Société Générale, Paris 2009-2010 Deputy Head Model Audit and Governance, Société Générale, Paris 2005-2008 Credit structurer, Société Générale Asset Management Alternative Investments, Paris 2002-2005 Credit analyst, RAROC project, Société Générale, Paris 1999-2001 Quantitative analyst, Direction de la Recherche et de l'Innovation, HSBC, Paris
Vivien Brunel
From the Fermi-Dirac distribution to PD curves Article de journal
Dans: Journal of Risk Finance, vol. 20, no. 2, p. 138-154, 2019.
@article{brunel_1136,
title = {From the Fermi-Dirac distribution to PD curves},
author = {Vivien Brunel},
url = {https://www.emerald.com/insight/content/doi/10.1108/JRF-01-2018-0009/full/html},
year = {2019},
date = {2019-03-18},
journal = {Journal of Risk Finance},
volume = {20},
number = {2},
pages = {138-154},
abstract = {In machine learning applications, and in credit risk modeling in particular, model performance is usually measured by using cumulative accuracy profile (CAP) and receiving operating characteristic curves. The purpose of this paper is to use the statistics of the CAP curve to provide a new method for credit PD curves calibration that are not based on arbitrary choices as the ones that are used in the industry.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vivien Brunel
A general asymptotic formula for distinct partitions Article de journal
Dans: Annals Of Physics, vol. 394, p. 73-83, 2018.
@article{brunel_523,
title = {A general asymptotic formula for distinct partitions},
author = {Vivien Brunel},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0003491618300861?via%3Dihub},
year = {2018},
date = {2018-06-01},
journal = {Annals Of Physics},
volume = {394},
pages = {73-83},
abstract = {Many asymptotic formulas exist for unrestricted integer partitions as well as for equal partitions of integers into a finite number of parts. We use an analogy with fermion gases and the tools of statistical physics to derive asymptotic formulas for distinct partitions with a large but finite number of parts. These results are supported by the fact that we recover some other existing asymptotic results and by numerical comparisons with exact results.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vivien Brunel; Stéphane Crépey; Monique Jeanblanc
Expected Credit Loss vs Credit Value Adjustment: a comparative Analysis Article de journal
Dans: Bankers, Markets & Investors, vol. 141, p. p6-p18, 2016.
@article{brunel_15,
title = {Expected Credit Loss vs Credit Value Adjustment: a comparative Analysis},
author = {Vivien Brunel and Stéphane Crépey and Monique Jeanblanc},
url = {https://econpapers.repec.org/article/rbqjournl/},
year = {2016},
date = {2016-03-01},
journal = {Bankers, Markets & Investors},
volume = {141},
pages = {p6-p18},
abstract = {The recent publication of the IFRS 9 norms related to collective provisions for non defaulted instruments has settled a new vision to banking book portfolios. In this paper we show that the IFRS 9 provision measured through the Expected Credit Loss (ECL), inspired from a market vision on loan books, is very similar to the Credit Value Adjustment (CVA) for derivative exposures. However, even if the underlying formulas are identical, the metrics and parameters are not the same. Hence, though ECL and CVA measure similar effects, they involve different modelling challenges.},
note = {https://EconPapers.repec.org/RePEc:rbq:journl:i:141:p:6-18},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vivien Brunel
Loan Classification under IFRS9 Divers
Risk.net, 2016.
@misc{brunel_13,
title = {Loan Classification under IFRS9},
author = {Vivien Brunel},
url = {www.risk.net/risk-management/credit-risk/2456385/loan-classification-under-ifrs-9},
year = {2016},
date = {2016-07-01},
howpublished = {Risk.net},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}
Vivien Brunel
Operational risk modelled analytically II Divers
Risk.net, 2016.
@misc{brunel_14,
title = {Operational risk modelled analytically II},
author = {Vivien Brunel},
url = {www.risk.net/risk-management/operational-risk/2466582/operational-risk-modelled-analytically-ii-classification-invariance},
year = {2016},
date = {2016-07-01},
howpublished = {Risk.net},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}
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