Search Results for author: Jérôme Lelong

Found 6 papers, 0 papers with code

A pure dual approach for hedging Bermudan options

no code implementations29 Apr 2024 Aurélien Alfonsi, Ahmed Kebaier, Jérôme Lelong

This paper develops a new dual approach to compute the hedging portfolio of a Bermudan option and its initial value.

Mean-variance dynamic portfolio allocation with transaction costs: a Wiener chaos expansion approach

no code implementations3 May 2023 Areski Cousin, Jérôme Lelong, Tom Picard

This paper studies the multi-period mean-variance portfolio allocation problem with transaction costs.

Pricing Bermudan options using regression trees/random forests

no code implementations19 Nov 2021 Zineb El Filali Ech-Chafiq, Pierre Henry-Labordere, Jérôme Lelong

At each time step, one needs to compare the immediate exercise value with the continuation value and decide to exercise as soon as the exercise value is strictly greater than the continuation value.

regression

Rating transitions forecasting: a filtering approach

no code implementations22 Sep 2021 Areski Cousin, Jérôme Lelong, Tom Picard

Analyzing the effect of business cycle on rating transitions has been a subject of great interest these last fifteen years, particularly due to the increasing pressure coming from regulators for stress testing.

Pricing path-dependent Bermudan options using Wiener chaos expansion: an embarrassingly parallel approach

no code implementations17 Jan 2019 Jérôme Lelong

In this work, we propose a new policy iteration algorithm for pricing Bermudan options when the payoff process cannot be written as a function of a lifted Markov process.

regression

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