2022
DOI: 10.1016/j.chaos.2022.112268
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Rényi entropy and divergence for VARFIMA processes based on characteristic and impulse response functions

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Cited by 25 publications
(4 citation statements)
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“…We should conclude with possible extensions of our results. There have been papers on the asymptotic information matrix for extended models like ARMA models with periodic coefficients [45,46], state-space models [46], Markov switching VARMA models [47], or VARFIMA models [48]. It is possible that the approach described in this paper can be extended to these extended models.…”
Section: Discussionmentioning
confidence: 99%
“…We should conclude with possible extensions of our results. There have been papers on the asymptotic information matrix for extended models like ARMA models with periodic coefficients [45,46], state-space models [46], Markov switching VARMA models [47], or VARFIMA models [48]. It is possible that the approach described in this paper can be extended to these extended models.…”
Section: Discussionmentioning
confidence: 99%
“…With respect to the proposed models, further studies might focus on other indexes, such as a daily S&P500 index, the Hang-Seng index (Shum 2020), foreign exchange rates (Ramírez-Parietti et al 2021), or another time series. Moreover, economic uncertainty could be modeled by a multivariate approach (Arnold and Günther 2001;Contreras-Reyes 2022). The proposed models may be applied to similar economies of other Latin American countries by adapting the relevant variants, such as the external factors.…”
Section: Discussionmentioning
confidence: 99%
“…Prediction methods impute the dataset by predicting the value of missing data via prediction models, which are usually based on historical data [29]. Previously, one-way prediction methods, including heuristic techniques (HT) (historical average, weighted average) [30], Kalman filter (KF) [31], autoregressive integrated moving average (ARIMA) [32], data augmentation (DA) [30], seasonal ARIMA [33,34], feed-forward neural network (FFNN) [35] and fractionally integrated vector autoregressive and moving average (VARFIMA) [36], have been based mostly on temporal neighboring information. However, these methods assume that the value of the missing interval of a day is similar to the latest intervals or the same interval in neighboring days.…”
Section: Methodsmentioning
confidence: 99%