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O. K. Agunloye

Department of Statistics, Obafemi Awolowo University, Ile Ife, Nigeria

kagunloye@oauife.edu.ng
2 Publications
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Publications 2

1
Research Article Vol. 36, Issue 1

On Specification of Almon Distribued Lag Model in the Presence of Multicollinearity

T. K. Ajetunmobi, O. K. Agunloye*

In Almon distributed lag modeling, presence of multicollinearity, choice of appropriate approximating polynomial of suitable degree and choice of optimal truncation lag-length required for the implementation of Almon distributed lag model constitute three major problems confronting Almon distributed lag modeling.Given the fact that the choice of ap...

DOI: 10.67897/njma.2026.xa92ictk
Jun, 2026 Vol. 36, Issue 1 3 views
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2
Research Article Vol. 35, Issue 1

Forecasting Monthly Inflation Rate in Nigeria Using Causal and Invertible Autoregressive Moving Average Models

O. K. Agunloye*, K. A. Alamu

This paper evaluates causal and invertible ARMA models for forecasting Nigeria’s inflation rate. After testing stationarity and fitting candidates, the ARMA(1, 4) model emerged as optimal. It satisfies causality, invertibility, and outperforms alternatives across loss functions.

DOI: 10.67897/njma.2025.4ciazhok
Jun, 2025 Vol. 35, Issue 1 3 views
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