NBINAR(1) process defined with Poisson-weighted exponential innovations

In this paper, we present a new integer-valued time series model based on Poissonweighted exponential innovations and a negative binomial thinning operator. One of its notable characteristics is its ability to handle over-dispersed integer-valued time series. Two different approaches are employed for estimating the related parameters. Furthermore, simulation tests are carried out to demonstrate the accuracy of these approaches. Finally, we compare our model with fair competitors using some count time series data and show that it is statistically superior.

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Publication Details

Journal
Journal of Statistics and Management Systems
Published
2025-01-01
DOI
https://doi.org/10.47974/jsms-1328
Primary Topic
Firm Innovation and Growth
Type
article
Field-Weighted Citation Impact
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article

NBINAR(1) process defined with Poisson-weighted exponential innovations

M. R. Irshad, Anuresha Krishna, Christophe Chesneau, R. Maya
Journal of Statistics and Management Systems
Firm Innovation and Growth
article

NBINAR(1) process defined with Poisson-weighted exponential innovations

M. R. Irshad, Anuresha Krishna, Christophe Chesneau, R. Maya
article en

Abstract

In this paper, we present a new integer-valued time series model based on Poissonweighted exponential innovations and a negative binomial thinning operator. One of its notable characteristics is its ability to handle over-dispersed integer-valued time series. Two different approaches are employed for estimating the related parameters. Furthermore, simulation tests are carried out to demonstrate the accuracy of these approaches. Finally, we compare our model with fair competitors using some count time series data and show that it is statistically superior.

Journal of Statistics and Management SystemsVol. 28(3)
Openalex Percentile: Top 89%
Firm Innovation and Growth
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