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A spatial decomposition of the shift‐share components of labour productivity inequality in Italy

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  • Mauro Mussini

Abstract

This paper explores the components of aggregate labour productivity inequality between Italian regions from 2000 to 2013. The Gini index of inequality in aggregate labour productivity is decomposed, showing the extent to which sector productivity differentials and differences in industry‐mix contribute to regional productivity inequality. In addition, the contribution of the interaction between differences in industry‐mix and sector productivity differentials is revealed by the decomposition. Each of these contributions to inequality is measured by considering the spatial dimension of regional inequality, since the contributions of inequality between non‐neighbouring regions and inequality between neighbouring regions are separated. Este artículo examina los componentes de la desigualdad de la productividad laboral agregada entre regiones italianas desde 2000 a 2013. Cuando se desagrega el índice de Gini de desigualdad en la productividad laboral agregada, se muestra hasta qué punto los diferenciales de productividad del sector y las diferencias en la mezcla de industrias contribuyen a la desigualdad de la productividad regional. Además, la contribución de la interacción entre las diferencias en la mezcla de industrias y los diferenciales de productividad del sector quedan de manifiesto con la desagregación. Cada una de estas contribuciones a la desigualdad se mide teniendo en cuenta la dimensión espacial de la desigualdad regional, ya que las contribuciones de la desigualdad entre regiones no vecinas y la desigualdad entre regiones vecinas están separadas. 本稿では、2000年~2013年のイタリアの地域間の労働生産性の総計の不均衡の構成要素を探索する。労働生産性の総計の不均衡のジニ係数を分解すると、セクター別の生産性の差異と産業構成の相違の、地域の生産性の不均衡に対する貢献度が明らかになる。さらに、その分解により、産業構成の相違とセクター別の生産性の差異の相互作用の貢献度も明らかになる。不均衡に対するこれらの各貢献度は、隣接しない地域間の不均衡と隣接する地域間の不均衡の貢献度が乖離しているため、地域間の不均衡の空間次元を考慮して計測する。

Suggested Citation

  • Mauro Mussini, 2019. "A spatial decomposition of the shift‐share components of labour productivity inequality in Italy," Papers in Regional Science, Wiley Blackwell, vol. 98(1), pages 283-306, February.
  • Handle: RePEc:bla:presci:v:98:y:2019:i:1:p:283-306
    DOI: 10.1111/pirs.12362
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    Cited by:

    1. Jean‐François Ruault & Yves Schaeffer, 2020. "Scalable shift‐share analysis: Novel framework and application to France," Papers in Regional Science, Wiley Blackwell, vol. 99(6), pages 1667-1690, December.

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