Bootstrap choice of non-nested autoregressive model with non-normal innovations

Zamani Mehreyan Sedigheh ()
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Zamani Mehreyan Sedigheh: Department of Statistics, Imam Khomeini International University, Qazvin, Iran

Monte Carlo Methods and Applications, 2023, vol. 29, issue 3, 243-258

Abstract: It is known that the block-based version of the bootstrap method can be used for distributional parameter estimation of dependent data. One of the advantages of this method is that it improves mean square errors. The paper makes two contributions. First, we consider the moving blocking bootstrap method for estimation of parameters of the autoregressive model. For each block, the parameters are estimated based on the modified maximum likelihood method. Second, we provide a method for model selection, Vuong’s test and tracking interval, i.e. for selecting the optimal model for the innovation’s distribution. Our analysis provides analytic results on the asymptotic distribution of the bootstrap estimators and also computational results via simulations. Some properties of the moving blocking bootstrap method are investigated through Monte Carlo simulation. This simulation study shows that, sometimes, Vuong’s test based on the modified maximum likelihood method is not able to distinguish between the two models; Vuong’s test based on the moving blocking bootstrap selects one of the competing models as optimal model. We have studied real data, the S&P500 data, and select optimal model for this data based on the theoretical results.

Keywords: Autoregressive model; model selection; modified maximum likelihood; moving blocking bootstrap; tracking interval (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1515/mcma-2023-2010

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