## Bernoulli

• Bernoulli
• Volume 25, Number 3 (2019), 2183-2205.

### Consistency of Bayesian nonparametric inference for discretely observed jump diffusions

#### Abstract

We introduce verifiable criteria for weak posterior consistency of Bayesian nonparametric inference for jump diffusions with unit diffusion coefficient and uniformly Lipschitz drift and jump coefficients in arbitrary dimension. The criteria are expressed in terms of coefficients of the SDEs describing the process, and do not depend on intractable quantities such as transition densities. We also show that priors built from discrete nets, wavelet expansions, and Dirichlet mixture models satisfy our conditions. This generalises known results by incorporating jumps into previous work on unit diffusions with uniformly Lipschitz drift coefficients.

#### Article information

Source
Bernoulli, Volume 25, Number 3 (2019), 2183-2205.

Dates
Revised: November 2017
First available in Project Euclid: 12 June 2019

https://projecteuclid.org/euclid.bj/1560326442

Digital Object Identifier
doi:10.3150/18-BEJ1050

Mathematical Reviews number (MathSciNet)
MR3961245

Zentralblatt MATH identifier
07066254

#### Citation

Koskela, Jere; Spanò, Dario; Jenkins, Paul A. Consistency of Bayesian nonparametric inference for discretely observed jump diffusions. Bernoulli 25 (2019), no. 3, 2183--2205. doi:10.3150/18-BEJ1050. https://projecteuclid.org/euclid.bj/1560326442

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