手法を比較

	空間ラグモデル（SAR / 空間自己回帰）	最小二乗法 (OLS) 回帰
分野	空間分析	計量経済学
系統	Regression model	Regression model
提唱年	1988	2019
提唱者	Anselin (textbook formalisation); LeSage & Pace	Wooldridge (textbook treatment); classical least squares
種類	Spatial autoregressive regression	Linear regression
原典	Anselin, L. (1988). Spatial Econometrics: Methods and Models. Kluwer Academic.	Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860
別名	SAR model, spatial autoregressive model, spatial lag, Uzamsal Gecikme Modeli (SAR / Spatial Lag)	ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu
関連	5	5
概要	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.	Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE).