The Scan-LM to Test Instability in the Constant Coefficient of Spatial Autoregressive Models

  1. Fernando A. López Hernández 1
  2. Román Mínguez Salido
  1. 1 Universidad Politécnica de Cartagena
    info

    Universidad Politécnica de Cartagena

    Cartagena, España

    ROR https://ror.org/02k5kx966

Revista:
Economía

ISSN: 0254-4415

Año de publicación: 2021

Volumen: 44

Número: 87

Páginas: 74-88

Tipo: Artículo

DOI: 10.18800/ECONOMIA.202101.005 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Economía

Resumen

This paper presents a test based on the principle of Lagrange Multipliers to identify spatial instability in the constant coefficient of regression models including substantive spatial dependence. The test has been adapted to the Scan methodology. Its main advantage is that it identifies areas with differential behavior without the need to provide information about their location, shape, or size. The study shows the utility of the test, reconsidering the results obtained by Mur et al.(2008) about instability in the distribution of per capita income in European regions.

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