4 papers · 1 filter
Modeling dependency between operational risk losses and macroeconomic variables using Hidden Markov Models
Nikeethan Selvaratnam, Dorinel Bastide, Clément Fernandes +1
Predicting future operational risk losses gives rise to a significant challenge due to the heterogeneous and time-dependent structures present in real-world data. Furthermore, stre…
Provisions and Economic Capital for Credit Losses
Dorinel Bastide, Stéphane Crépey
Based on supermodularity ordering properties, we show that convex risk measures of credit losses are nondecreasing w.r.t. credit-credit and, in a wrong-way risk setup, credit-marke…
Resolving a Clearing Member's Default, A Radner Equilibrium Approach
Dorinel Bastide, Stéphane Crépey, Samuel Drapeau +1
For vanilla derivatives that constitute the bulk of investment banks' hedging portfolios, central clearing through central counterparties (CCPs) has become hegemonic. A key mandate…
Derivatives Risks as Costs in a One-Period Network Model
Dorinel Bastide, Stéphane Crépey, Samuel Drapeau +1
We present a one-period XVA model encompassing bilateral and centrally cleared trading in a unified framework with explicit formulas for most quantities at hand. We illustrate poss…