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Spatial Unit Roots in Regressions: A Practitioner's Guide and a Stata Package

Author

Listed:
  • Sascha O. Becker

    (U Warwick and Monash U)

  • P. David Boll

    (U Warwick)

  • Hans-Joachim Voth

    (U Zurich)

Abstract

Spatial unit roots can lead to spurious regression results. We present a brief overview of the methods developed in Müller and Watson (2024) to test for and correct for spatial unit roots. We also introduce a suite of Stata commands (-spur-) implementing these techniques. Our commands exactly replicate results in Müller and Watson (2024) using the same Chetty et al. (2014) data. We present a brief practitioner's guide for applied researchers.

Suggested Citation

  • Sascha O. Becker & P. David Boll & Hans-Joachim Voth, 2025. "Spatial Unit Roots in Regressions: A Practitioner's Guide and a Stata Package," SoDa Laboratories Working Paper Series 2025-01, Monash University, SoDa Laboratories.
    • Handle: RePEc:ajr:sodwps:2025-01
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    More about this item

    Keywords

    spurtest; spurtransform; spurious spatial regression; spatial unit roots;
    All these keywords.

    JEL classification:

    • C21 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • C87 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Econometric Software
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • R15 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Econometric and Input-Output Models; Other Methods
    • N90 - Economic History - - Regional and Urban History - - - General, International, or Comparative
    • P50 - Political Economy and Comparative Economic Systems - - Comparative Economic Systems - - - General

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