On asymptotics related to classical inference in stochastic differential equations with random effects

Article Type

Research Article

Publication Title

Statistics and Probability Letters

Abstract

Delattre et al. (2013) considered n independent stochastic differential equations (SDE's), where in each case the drift term is associated with a random effect, the distribution of which depends upon unknown parameters. Assuming the independent and identical (iid) situation the authors provide independent proofs of weak consistency and asymptotic normality of the maximum likelihood estimators (MLE's) of the hyper-parameters of their random effects parameters. In this article, as an alternative route to proving consistency and asymptotic normality in the SDE set-up involving random effects, we verify the regularity conditions required by existing relevant theorems. In particular, this approach allowed us to prove strong consistency under weaker assumption. But much more importantly, we further consider the independent, but non-identical set-up associated with the random effects based SDE framework, and prove asymptotic results associated with the MLE's.

First Page

278

Last Page

288

DOI

10.1016/j.spl.2015.10.001

Publication Date

3-1-2016

Comments

Open Access; Green Open Access

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