Italian household expenditure survey: a proposal for data dissemination

Authors:
Mario Trottini;Luisa Franconi;Silvia Polettini
Affiliations:
Departamento de Estadística e I.O., Universidad de Alicante, Alicante, Spain;Istat, Servizio Progettazione e Supporto Metodologico, nei Processi di Produzione Statistica, Roma, Italy;Dipartimento di Scienze Statistiche, Università di Napoli Federico II, Napoli, Italy
Venue:
PSD'06 Proceedings of the 2006 CENEX-SDC project international conference on Privacy in Statistical Databases
Year:
2006

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Abstract

In this paper we define a proposal for an alternative data dissemination strategy of the Italian Household Expenditure Survey (HES). The proposal moves from partitioning the set of users in different groups homogeneous in terms of needs, type of statistical analyses and access to external information. Such a partition allows the release of different data products that are hierarchical in information content and that may be protected using different data disclosure limitation methods. A new masking procedure that combines Migroaggregation and Data Swapping is proposed to preserve sampling weights.