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Quantitative analysis

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…

Omega portfolio construction

The omega risk-adjusted performance measure with Johnson distributions accountscomprehensively and non-discretionarily for the first potentially persistent moments includingskewness and kurtosis. The Johnson-omega ratio thus overcomes the shortcomings of…

Replication of flexi-swaps

Ingmar Evers and Farshid Jamshidian describe a relatively new product known as a flexi-swap and discuss its application in securitisation. A flexi-swap gives a counterparty an option to amortise the interest rate swap at an accelerated pace. They show…

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