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Multiplicative Microdata Noise for Confidentialising Tables of Business Data

This paper discusses problems with the current cell suppression method of confidentialising business survey data, introduces a new method called the ‘noise method’ and presents the results of applying this new method to the Annual Enterprise Survey (AES).

Multiplicative Microdata Noise for Confidentialising Tables of Business Data discusses a new method for confidentialising tables of business data called the ‘noise method’. This method is slowly being adopted overseas and might be used for business data within Statistics New Zealand in the future. This report was written by Frances Krsinich and coauthored by Andrea Piesse under the direction of Sharleen Forbes, Chief Analyst.

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