2.3.4. Spatial Statistical Analyses

The variables that were analyzed with spatial statistics were PEB factor scores related to clothing, produce and household energy, the PEA factor scores, and travel emissions from local, national, and international travel. We used two spatial statistical methods in ArcGIS 10 to identify patterns of spatial association. We used Global Moran's I statistic [60] to check whether the values were clustered in space in the whole region, and Getis-Ord Gi\* to identify areas in which high or low values cluster

locally [61]. Moran's I is not sensitive to some cases of local spatial association, so we computed the Gi\* even in cases when Moran's I did not show a significant pattern of spatial association.
