The Future of Correlation Modelling

Gunter Meissner

“Solving the right problem numerically beats solving the wrong problem analytically every time”

– Richard Martin

In this chapter, we will discuss new developments and financial modelling, which can be extended to correlation modelling. We will address the application of GPUs (graphical processing units), which allow fast parallel execution of numerically intensive code without the need of mathematical solvency. We will also discuss some new artificial-intelligence approaches such as neural networks and genetic algorithms, as well as fuzzy logic, Bayesian mathematics and chaos theory.


Some problems in finance are quite complex so that a closed-form solution is not available. For example, path-dependent options such as American-style options principally have to be evaluated on a binomial or multi-nominal tree, since we have to check at each node of the tree if early exercise is rational. In risk management, especially in credit risk management, thousands of correlated default risks have to be evaluated. While there are simple approximate measures to model counterparty risk in a portfolio

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