Asia Risk/Technical paper
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…
Cutting edge - Omega portfolio construction with Johnson distributions
The omega risk-adjusted performance measure with Johnson distributions accounts comprehensively and non-discretionarily for the first potentially persistent moments including skewness and kurtosis. The Johnson-omega ratio thus overcomes the shortcomings…
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. Here, Kevin Thompson, Alistair McLeod, Panayiotis Teklos and Shobhit Gupta…
A Merton approach to transfer risk
Transfer risk is the risk that debtors in a country are unable to ensure timely payments of foreign currency debt service due to transfer or exchange restrictions, or a general lack of foreign currency. Although this risk is not extensively addressed in…
Bond execution models
Quantitative trading l Cutting edge
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…