Some Results Obtained from the Application of the ISTAT CIS Anonymisation to Three Member States: Italy, United Kingdom and Portugal

The Community Innovation Survey (CIS) is one of the surveys mentioned in the Commission Regulation 831/2002. For the dissemination of a mic rodata file for research purposes, ISTAT developed a statistical disclosure control methodol ogy. Its flexibility was tested using microdata files stemming from the British, Portuguese and Ita lian CIS 4 surveys. This document presents only some comparisons between the application of the Ita lian dissemination methodology to the British, Portuguese and Italian microdata files. Considering both the risk of disclosure and data utility requirements, several dissemination/quality indicat ors were calculated.