Inference with the Whittle Likelihood: A Tractable Approach Using Estimating Functions. (20th December 2016)

• Record Type: Journal Article
• Authors: Jesus, Joao; Chandler, Richard E.
• Other Names: Subba Rao Tata guestEditor.; Tunnicliffe Wilson Granville guestEditor.
• Is Part Of: Journal of time series analysis. Volume 38:Number 2(2017:Mar.)
• Page Start: 204
• Page End: 224
• Publication Date: 2016-12-20
• Subjects: Estimating function -- spectral analysis -- sandwich estimator -- rainfall; Time-series analysis -- Periodicals; 519.232
• DOI: 10.1111/jtsa.12225
• Languages: English
• ISSNs: 0143-9782

Abstract

Abstract : The theoretical properties of the Whittle likelihood have been studied extensively for many different types of process. In applications however, the utility of the approach is limited by the fact that the asymptotic sampling distribution of the estimator typically depends on third‐order and fourth‐order properties of the process that may be difficult to obtain. In this article, we show how the methodology can be embedded in the standard framework of estimating functions, which allows the asymptotic distribution to be estimated empirically without calculating higher‐order spectra. We also demonstrate that some aspects of the inference, such as the calculation of confidence regions for the entire parameter vector, can be inaccurate but that a small adjustment, designed for application in situations where a mis‐specified likelihood is used for inference, can lead to marked improvements.