RETRACTED ARTICLE: Some properties of the generalized autoregressive moving average (GARMA(1, 2; δ, 1)) model

Thulasyammal R. Pillai and Mahendran Shitan

Communications in Statistics - Theory and Methods, 2023, vol. 52, issue 14, i-xv

Abstract: Recently, the GARMA(1, 2; δ, 1) time series model has been introduced in the literature. In this paper, the variance and autocovariance of the GARMA(1, 2; δ, 1) model are derived. Some numerical results are also provided. It appears from the simulation study that the HRA and WE estimation procedures are relatively good for GARMA(1, 2; δ,1) model. The GARMA(1, 2; δ, 1) model was also applied to model a real data set, namely Dow Jones Utility Index. We believe that this model would also be useful for modeling many other time series data.

Date: 2023
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DOI: 10.1080/03610926.2013.851240

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