手法を比較

	グローバル空間ダービンモデル（SDM）	空間ラグモデル（SAR / 空間自己回帰）
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	2009	1988
提唱者	Durbin (1960); adapted to spatial context by LeSage & Pace (2009)	Anselin (textbook formalisation); LeSage & Pace
種類	Spatial regression model	Spatial autoregressive regression
原典	LeSage, J. P., & Pace, R. K. (2009). Introduction to Spatial Econometrics. CRC Press / Taylor & Francis. ISBN: 978-1420064247	Anselin, L. (1988). Spatial Econometrics: Methods and Models. Kluwer Academic.
別名	SDM, Spatial Durbin Model, global SDM, spatially lagged X model with spatial lag	SAR model, spatial autoregressive model, spatial lag, Uzamsal Gecikme Modeli (SAR / Spatial Lag)
関連	5	5
概要	The Global Spatial Durbin Model extends the spatial lag model by including not only a spatially lagged dependent variable but also spatially lagged independent variables (WX). A single set of global coefficients applies uniformly across all locations, making it suitable for estimating average spillover effects when spatial dependence is pervasive throughout the study region.	The Spatial Lag Model is an autoregressive regression that assumes spatial dependence in the dependent variable itself: the outcome values of neighbouring units enter the model as an explanatory term (ρWy). It was formalised in Anselin's Spatial Econometrics (1988) and developed further by LeSage and Pace (2009), and it decomposes spillover effects into direct, indirect, and total impacts.