As global financial markets become increasingly interconnected, accurately modelling correlations between assets is essential. Traditional models often assume static correlations, which fail to ...

"Correlation is not causation. Correlation is not causation. Correlation is not causation … " At times during my statistics studies I felt like Jack Nicholson in the film The Shining, in which we ...

In this paper we introduce a simple version of the “local-in-index” correlation model in which the correlation function does not depend on the index but on a synthetic index computed solely from the ...

The correlations between the counts are modeled as , (exchangeable correlations). For comparison, the correlations are also modeled as independent (identity correlation matrix). In this model, the ...

We consider stochastic correlation models that account for the correlation smile in the pricing of synthetic CDO tranches. These can be viewed as tractable extensions of the one-factor Gaussian copula ...