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A stochastic independence approach for measuring regional specialization and concentration

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  • Christian Haedo
  • Michel Mouchart

Abstract

This paper proposes an integrated framework for discussing issues related to regional concentration, sectorial specialization and overall localization by considering these concepts as a row‐column association– or non‐independence– in a two‐way contingency table ‘regions × sectors’. This is the approach of stochastic independence, in which the degree of concentration, or of specialization, is measured by discrepancies among distributions: between profiles and a uniform distribution for absolute concepts; between profiles and the corresponding marginal distribution for relative concepts; or between the joint distribution and the product of the marginal distributions for overall localization. This paper discusses the benefits of this integrating approach, particularly for the practitioner facing a multifaceted literature. Este documento propone un marco integrado para discutir temas relacionados con la concentración regional, la especialización sectorial y la localización en general, considerando estos conceptos como una asociación fila‐columna, o de no independencia, en una tabla de contingencia bidireccional ‘regiones × sectores’. Este es el enfoque de la independencia estocástica, en el que el grado de concentración, o de especialización, se mide por las discrepancias entre las distribuciones: entre los perfiles y una distribución uniforme para los conceptos absolutos; entre los perfiles y la correspondiente distribución marginal para conceptos relativos; o entre la distribución conjunta y el producto de las distribuciones marginales para la localización en general. Este artículo analiza los beneficios de este enfoque integrador, en particular para el profesional que se enfrenta a una literatura multifacética. 本稿では、地域的集積、セクターの特化、全体的な地域化、以上のコンセプトの関係を、2次元の分割表(two‐way contingency table)の、「地域✕セクター」という行と列の関係、あるいは非独立性と捉えて、これらコンセプトに関わる問題を議論する統合型のフレームワークを提案する。これは、集中または特化の程度を分布の誤差で測る確率論的独立アプローチである。 その誤差とはすなわち、プロファイルと一様分布に対する絶対概念との誤差、プロファイルと対応する周辺分布に対する相対概念との誤差、または結合分布と全体的な地域化に対する周辺分布の積である。また、特に多面的研究の論文に対峙する研究者のために、この統合型アプローチのベネフィットについて考察する。

Suggested Citation

  • Christian Haedo & Michel Mouchart, 2018. "A stochastic independence approach for measuring regional specialization and concentration," Papers in Regional Science, Wiley Blackwell, vol. 97(4), pages 1151-1168, November.
  • Handle: RePEc:bla:presci:v:97:y:2018:i:4:p:1151-1168
    DOI: 10.1111/pirs.12294
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    Cited by:

    1. Álvarez de Toledo, Pablo & Núñez, Fernando & Usabiaga, Carlos, 2020. "Matching in segmented labor markets: An analytical proposal based on high-dimensional contingency tables," Economic Modelling, Elsevier, vol. 93(C), pages 175-186.
    2. Usabiaga, Carlos & Núñez, Fernando & Arendt, Lukasz & Gałecka-Burdziak, Ewa & Pater, Robert, 2022. "Skill requirements and labour polarisation: An association analysis based on Polish online job offers," Economic Modelling, Elsevier, vol. 115(C).
    3. Haedo, Christian & Mouchart, Michel, 2019. "Two-mode clustering through profiles of regions and sectors," LIDAM Discussion Papers ISBA 2019014, Université catholique de Louvain, Institute of Statistics, Biostatistics and Actuarial Sciences (ISBA).

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