| http://www.w3.org/ns/prov#value | - The spatial lag model is expressed as follows: where is an by 1 vector of observations on the dependent variable (percent with BLL ??? 10?????g/dL), is the matrix of county characteristics, is the row-standardized spatial weight matrix, and the parameter is a coefficient on the spatial lag of the dependent variable. ?????? captures the extent to which BLLs are affected by levels in contiguous coun
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