About predictions in spatial autoregressive models : Optimal and almost optimal strategies
We address the problem of prediction in the spatial autoregressive SAR model for areal data which is classically used in spatial econometrics. With the Kriging theory, prediction using Best Linear Unbiased Predictors is at the heart of the geostatistical literature. From the methodological point of view, we explore the limits of the extension of BLUP formulas in the context of the spatial autoregressive SAR models for out-of-sample prediction simultaneously at several sites. We propose a more tractable \almost best" alternative and clarify the relationship between the BLUP and a proper EM-algorithm predictor. From an empirical perspective, we present data-based simulations to compare the efficiency of the classical formulas with the best and almost best predictions.
|Date of creation:||18 Dec 2013|
|Date of revision:||Dec 2016|
|Publication status:||Published in Spatial Economic Analysis, vol. 12, n°2-3, avril 2017, p. 304-325.|
|Contact details of provider:|| Phone: (+33) 5 61 12 86 23|
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