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Has concentration evolved similarly in manufacturing and services? A sensitivity analysis
Ruiz-Valenzuela, Jenifer; Moreno Serrano, Rosina; Vayá, Esther
Our first objective is to compare the degree of concentration in manufacturing and services, with special emphasis on its evolution in these two sectors, using a sensitivity analysis for different concentration indices and different geographic units of analysis: municipalities and local labour systems of Catalonia in 1991 and 2001. Most concentration measures fail to consider the space in which a particular municipality is located. Our second objective is to overcome this problem by applying two different techniques: by using a clustering measure, and by analysing whether the location quotients computed for each municipality and sector present some kind of spatial autocorrelation process. We take special account of the differences in patterns of concentration according to the technological level of the sectors.
Concentració industrial
Indústria manufacturera
Correlació (Estadística)
Industrial concentration
Manufacturing industries
Correlation (Statistics)
cc-by-nc-nd, (c) Ruiz-Valenzuela et al., 2007
Documento de trabajo
Universitat de Barcelona. Institut de Recerca en Economia Aplicada Regional i Pública

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