The stochastic collocation Monte Carlo sampler: Highly efficient sampling from ‘expensive’ distributions

L.A. Grzelak, J.A.S. Witteveen, C.W. Oosterlee, M. Suárez-Taboada

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)
1 Downloads (Pure)

Abstract

In this article, we propose an efficient approach for inverting computationally expensive cumulative distribution functions. A collocation method, called the Stochastic Collocation Monte Carlo sampler (SCMC sampler), within a polynomial chaos expansion framework, allows us the generation of any number of Monte Carlo samples based on only a few inversions of the original distribution plus independent samples from a standard normal variable. We will show that with this path-independent collocation approach the exact simulation of the Heston stochastic volatility model, as proposed in Broadie and Kaya [Oper. Res., 2006, 54, 217–231], can be performed efficiently and accurately. We also show how to efficiently generate samples from the squared Bessel process and perform the exact simulation of the SABR model.

Original languageEnglish
Pages (from-to)1-18
Number of pages18
JournalQuantitative Finance
DOIs
Publication statusPublished - 2018

Keywords

  • Exact sampling
  • Heston
  • Lagrange interpolation
  • Monte Carlo
  • SABR
  • Squared Bessel
  • Stochastic collocation

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