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The Stata Journal
Volume 13 Number 2: pp. 242-286

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Creating and managing spatial-weighting matrices with the spmat command

David M. Drukker
College Station, TX
Hua Peng
College Station, TX
Ingmar R. Prucha
Department of Economics
University of Maryland
College Park, MD
Rafal Raciborski
College Station, TX
Abstract.  We present the spmat command for creating, managing, and storing spatial-weighting matrices, which are used to model interactions between spatial or more generally cross-sectional units. spmat can store spatial-weighting matrices in a general and banded form. We illustrate the use of the spmat command and discuss some of the underlying issues by using United States county and postal-code-level data.
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View all articles by these authors: David M. Drukker, Hua Peng, Ingmar R. Prucha, Rafal Raciborski

View all articles with these keywords: spmat, spatial-autoregressive models, Cliff–Ord models, spatial lag, spatial-weighting matrix, spatial econometrics, spatial statistics, cross-sectional interaction models, social-interaction models

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