La costruzione di un indicatore sintetico ponderato. Un’applicazione della procedura Benefit of the Doubt al caso della dotazione infrastrutturale in Italia

Applying the Benefit of the Doubt Approach for Indicators Aggregation. The Case of the Infrastructure Endowment in Italy - (Paper first received, October 2007; in final form, febbraio 2008) This paper provides a review of a methodology for constructing composite indicators who constitute the synthesis of a series of simple indicators and, above all, characterize a system of weights to use in the synthesis procedure. We apply the Benefit of the Doubt (BoD) approach, an application of the technique of linear programming Data Envelopment Analysis (DEA). In our formulation, however, weights constraints are endogenously determined, differently to BoD usual applications, analyzing variability of every simple indicator. Our methodology allows to find a matrix of the weights characterizing not only the simple indicators, but also the territorial units involved, obtaining, for every unit, the system of weights more favourable and, consequently, a composite indicator with maximum level. BoD approach has been applied to construction of a composite indicator of the Italian infrastructural endowment, whose elementary indicators were available to level of Italian province and infrastructural categories. Keywords: Composite Indicators; Data Envelopment Analysis; Infrastructure Endowment JEL classification: H54. C43. C61;

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Claudia Mazziotta, Francesco Vidoli, La costruzione di un indicatore sintetico ponderato. Un’applicazione della procedura Benefit of the Doubt al caso della dotazione infrastrutturale in Italia in "SCIENZE REGIONALI " 1/2009, pp 35-69, DOI: 10.3280/SCRE2009-001002