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2004•Unpublished venueRequires access

Decomposing Change in Industry Concentration

Oscar Bajo‐Rubio, Ronda de Toledo, Rafael Salas

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Abstract

In this paper we present an empirical application of the theoretical result found in Bajo and Salas (2002), namely, the decomposition of the change in industry concentration into the change in its two components (i.e., inequality and the number of firms), using a set of concentration indices previously computed for a number of sectors of the Spanish economy. This example would illustrate the usefulness of the approach, by helping to identify the sources of a change in industry concentration over a time period.

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What this paper is about

In this paper we present an empirical application of the theoretical result found in Bajo and Salas (2002), namely, the decomposition of the change in industry concentration into the change in its two components (i.e., inequality and the number of firms), using a set of concentration indices previously computed for a number of sectors of the Spanish economy. This example would illustrate the usefulness of the approach, by helping to identify the sources of a change in industry concentration over a time period.

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Available abstract

In this paper we present an empirical application of the theoretical result found in Bajo and Salas (2002), namely, the decomposition of the change in industry concentration into the change in its two components (i.e., inequality and the number of firms), using a set of concentration indices previously computed for a number of sectors of the Spanish economy. This example would illustrate the usefulness of the approach, by helping to identify the sources of a change in industry concentration over a time period.

Key concepts: Set (abstract data type), Econometrics, Technological change, Decomposition, Structural change, Economics, Technical change, Computer science

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