Poisson Spatial Autoregression Modeling of Poverty Count Data in the Philippines

Type Journal Article - The Philippine Statistician
Title Poisson Spatial Autoregression Modeling of Poverty Count Data in the Philippines
Author(s)
Volume 61
Publication (Day/Month/Year) 2012
Page numbers 67-82
URL http://www.philstat.org.ph/files/images/ing_of_Poverty_Count_Data_in_the_Philippines_0.pdf
Abstract
Count data with skewed distribution and possible spatial autoregression (SAR) often causes diffi culty in modelling. Violations on the assumptions in ordinary least squares (OLS) may occur. While Poisson regression can offer some remedy in modelling count data, it still does not take into account the spatial dependencies of the data. This paper uses general linear estimation via backfi tting algorithm in Poisson-SAR of poverty count in the Philippines for 2000. The model is assessed based on comparison from other models and the actual poverty count (MAPE and poverty map). MAPE
was lowest in Poisson-SAR compared to other models.

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