Abstract. The aim of this study was to compare different microdata protection methods for numerical variables under various conditions. Most of the 21 methods used in this paper have been implemented in the R-package sdcMicro which is available for free on the comprehensive R archive network (http://cran.r-project.org). The rest of the methods used can easily applied within other R-packages. Wh...

Microdata are used to examine the relative ability of the human capital model and of an alternative national distribution hypothesis to generate predicted distributions of earnings that are close to actual distributions within 48 SMSAs. Surprisingly, the national distribution hypothesis is found to be relatively more robust in predicting earnings distributions than the fixedparameter human capi...

In this paper we describe a new procedure that is capable of ensuring that the marginal distributions of attributes in microdata masked with a masking mechanism end up being the same as the marginal distributions of attributes in the original data. We illustrate the application of the new procedure using several commonly used masking mechanisms.