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Testing Spatial Dependence in Spatial Models with Endogenous Weights Matrices

Bera Anil K., Doğan Osman () and Taşpınar Süleyman
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Doğan Osman: Department of Economics, University of Illinois at Urbana-Champaign, Champaign, IL, USA
Taşpınar Süleyman: Department of Economics, Queens College CUNY, New York, NY, USA

Journal of Econometric Methods, 2019, vol. 8, issue 1, 33

Abstract: In this study, we propose simple test statistics for identifying the source of spatial dependence in spatial autoregressive models with endogenous weights matrices. Elements of the weights matrices are modelled in such a way that endogenity arises when the unobserved factors that affect elements of the weights matrices are correlated with the unobserved factors in the outcome equation. The proposed test statistics are robust to the presence of endogeneity in the weights and can be used to detect spatial dependence in the dependent variable and/or the disturbance terms. The robust test statistics are easy to calculate as computationally simple estimations are needed for their calculations. Our Monte Carlo results indicate that these tests have good size and power properties in finite samples. We also provide an empirical illustration to demonstrate the usefulness of the robust tests in identifying the source of spatial dependence.

Keywords: endogenous spatial weights matrix; inference; Lagrange multiplier test; LM test; parametric misspecification; Rao’s score test; robust LM test; SARAR model; specification testing (search for similar items in EconPapers)
JEL-codes: C13 C21 C31 (search for similar items in EconPapers)
Date: 2019
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