Technical paper/Value-at-risk (VAR)
Operational VAR: meaningful means
Making the assumption that the distribution of operational loss severity has finite mean, Klaus Böcker and Jacob Sprittulla suggest a refined version of the analytical operational value-at-risk theorem derived in Böcker & Klüppelberg (2005), which…
Dealing with seller's risk
The risk of trade receivables securitisations comes from both the pool of assets and the seller of the assets. Vivien Brunel develops a model for securitisation exposures that deals with both risks, and analyses in detail the interplay between debtors'…
Operational risk - Operational VAR: a closed-form approximation
Klaus Bocker and Claudia Kluppelberg investigate a simple loss-distribution model for operational risk. They show that, when loss data is heavy-tailed (which in practice it is), a simple closed-form approximation for operational value-at-risk (VAR) can…
Time for multi-period capital models
Several financial institutions use single-period models to determine their credit portfolio loss distribution, calculate their loss volatility and assign economic capital.
Operational VAR: a closed-form approximation
Klaus Böcker and Claudia Klüppelberg investigate a simple loss distribution model for operational risk. They show that, when loss data is heavy-tailed (which in practice it is), a simple closed-form approximation for operational VAR can be obtained. They…
An economic capital approach for hedge fund structured products
Hedge fund structured products are increasingly favoured by investors. Banks have been swiftly developing their commercial offers to meet this demand. However, the theoretical framework for the risk management of these products remains little explored,…
Time for multi-period capital models
Several financial institutions use single-period models to determine their credit portfolio lossdistribution, calculate their loss volatility and assign economic capital. Here, Kevin Thompson,Alistair McLeod, Panayiotis Teklos and Shobhit Gupta…
Modelling counterparty credit exposure for credit default swaps
Modelling counterparty credit exposure for credit derivatives is more complicated than for non-credit products, since the reference credit and counterparty can exhibit positive default correlation. Here, Christian Hille, John Ring and Hideki Shimamoto…
A Markovian approach to modelling correlated defaults
Vladyslav Putyatin, David Prieul and Svetlana Maslova unveil a simple dynamic binomial credit model with a Poissonian mixing distribution to satisfy the constraints faced by financial institutions assessing their credit exposure in a consistent manner…
Estimating economic capital allocations for market and credit risk
Value-at-Risk (VAR) measures often are used as a basis for setting so-called"economic capital" or buffer stock measures of equity capitalization requirements.VAR measures do not account for the time value of money or theequilibrium required return…