RT Monograph SR 00 A1 Thomas-Agnan, Christine A1 Laurent, Thibault A1 Goulard, Michel T1 About predictions in spatial autoregressive models YR 2014 FD 2014-09-25 VO 13-452 SP 19 K1 Spatial simultaneous autoregressive models K1 out of sample prediction K1 best linear unbiased prediction AB 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. T2 TSE Working Paper PB TSE Working Paper PP Toulouse AV Published LK https://publications.ut-capitole.fr/id/eprint/15788/ UL http://tse-fr.eu/pub/27788