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Credit risk

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…

Demanding disclosure

The dislocation in the correlation markets in May confirmed supervisors' fears about concentration risk in the hedge fund sector. And this is fuelling pressure for hedge funds to make more data disclosure. But how would this help to reduce risk? By…

The CRO road

Some of the larger hedge funds have set up formal risk management functions, appointing independent chief risk officers (CROs) to oversee their business. But what role should a hedge fund CRO play, and are these appointments a precursor of wider changes…

Getting a head-start

North American Energy Credit and Clearing may have gained an advantage by being the first to clear over-the-counter physical electricity contracts. But it still has to prove that it is reliable and efficient. Joe Marsh reports

Thinking positively

How does one produce positive probability of default estimates if there are no default observations? Katja Pluto and Dirk Tasche propose a statistically based methodology to derive non-zero probabilities of default for credit portfolios with none or very…

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