A review of tree-based approaches to solving forward–backward stochastic differential equations

Long Teng

Journal of Computational Finance

Abstract: In this work, we study ways of solving (decoupled) forward–backward stochastic differential equations numerically using regression trees. Based on general theta-discretization for time integrands, we show how to efficiently use regression-tree-based methods to solve the resulting conditional expectations. Several numerical experiments, including high-dimensional problems, are provided to demonstrate accuracy and performance. To show the applicability of forward–backward stochastic differential equations to financial problems, we apply our tree-based approach to the Heston stochastic volatility model to high-dimensional nonlinear pricing problems.

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