手法を比較

	ベイズ空間ラグモデル	空間的自己相関
分野	空間分析	空間分析
系統	Regression model	Regression model
提唱年	1997	1950
提唱者	LeSage (1997); fully elaborated in LeSage & Pace (2009)	P. A. P. Moran (global measure, 1950); Roy Geary (Geary's C, 1954); Luc Anselin (LISA, 1995)
種類	Bayesian spatial regression	Spatial statistic / exploratory spatial data analysis
原典	LeSage, J. P., & Pace, R. K. (2009). Introduction to Spatial Econometrics. CRC Press / Taylor & Francis. ISBN: 978-1420064247	Moran, P. A. P. (1950). Notes on continuous stochastic phenomena. Biometrika, 37(1/2), 17–23.
別名	Bayesian SAR model, Bayesian spatial autoregressive model, BSLM, Bayesian SLM	spatial dependence, geographic autocorrelation, spatial clustering measure, SA
関連	5	5
概要	The Bayesian Spatial Lag Model (BSLM) extends the classical spatial autoregressive (SAR) regression by placing prior distributions over all parameters and recovering full posterior distributions via MCMC sampling. It explicitly accounts for spatial dependence — the outcome in one location is partly driven by outcomes in neighboring locations — and yields uncertainty-quantified estimates of both regression coefficients and the spatial autocorrelation parameter rho.	Spatial autocorrelation quantifies the degree to which a variable's values at nearby locations resemble each other more (positive autocorrelation) or less (negative autocorrelation) than expected by chance. Global indices such as Moran's I summarise the pattern across the entire study area, while local variants reveal clusters and outliers at the level of individual observations.