E-ISSN 3026-930X
 

Original Research 


Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem

Oluwadare Ojo.


Abstract
Outliers and multicollinearity are problems in the analysis of Simultaneous Equation Model (SEM) especially in applied research. They can lead to bias or inefficiency of estimators. This study employed a Bayesian technique for estimation of SEM that is characterized with both multicollinearity and outliers. Monte Carlo experiment was applied while the data sets with specified outliers and multicollinearity were simulated for the SEM. The estimates of Bayesian and classical methods namely; two stage Least Squares (2SLS), Three Stage Least Squares (3SLS), Limited Information Maximum Likelihood (LIML) and Ordinary Least Squares (OLS) in simultaneous equation model were then compared. The criteria used for comparison were the Mean Square Error (MSE) and Absolute Bias (ABIAS). The Bayesian method of estimation outperformed classical methods in terms of MSE and ABIAS. However, the classical method has the same performance with Bayesian method when there are no outliers and multicollinearity in the simultaneous equation model. Hence, Bayesian method of estimation is preferred than classical method when there is problem of outlier and multicollinearity in a just identified simultaneous equation model.

Key words: Bayesian; multicollinearity; outliers, Monte Carlo; Simultaneous equation model


 
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How to Cite this Article
Pubmed Style

Oluwadare Ojo. Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. NJEAS. 2024; 2(1): 0-0. doi:10.5455/NJEAS.161133


Web Style

Oluwadare Ojo. Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. https://www.nilejeas.com/?mno=161133 [Access: May 15, 2024]. doi:10.5455/NJEAS.161133


AMA (American Medical Association) Style

Oluwadare Ojo. Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. NJEAS. 2024; 2(1): 0-0. doi:10.5455/NJEAS.161133



Vancouver/ICMJE Style

Oluwadare Ojo. Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. NJEAS. (2024), [cited May 15, 2024]; 2(1): 0-0. doi:10.5455/NJEAS.161133



Harvard Style

Oluwadare Ojo (2024) Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. NJEAS, 2 (1), 0-0. doi:10.5455/NJEAS.161133



Turabian Style

Oluwadare Ojo. 2024. Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. Nile Journal of Engineering and Applied Science, 2 (1), 0-0. doi:10.5455/NJEAS.161133



Chicago Style

Oluwadare Ojo. "Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem." Nile Journal of Engineering and Applied Science 2 (2024), 0-0. doi:10.5455/NJEAS.161133



MLA (The Modern Language Association) Style

Oluwadare Ojo. "Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem." Nile Journal of Engineering and Applied Science 2.1 (2024), 0-0. Print. doi:10.5455/NJEAS.161133



APA (American Psychological Association) Style

Oluwadare Ojo (2024) Bayesian Estimation of Simultaneous Equation Models with Outliers and Multicollinearity Problem. Nile Journal of Engineering and Applied Science, 2 (1), 0-0. doi:10.5455/NJEAS.161133