The effect of microaggregation on regression results: an application to Spanish innovation data

Alberto López

MPRA Paper from University Library of Munich, Germany

Abstract: Microaggregation is a technique for masking confidential data by aggregation. The aim of this paper is to analyze the extent to which microaggregated data can be used for rigorous empirical research. In doing this, I adopt an empirical perspective. I use data from the Technological Innovation Panel (PITEC) and compare regression results using both original and anonymized data. PITEC is a new firm-level panel data base for innovative activities of Spanish firms based on CIS data. I find that the microaggregation procedure used has a slight effect on the coefficient estimates and their estimated standard errors, especially when estimating linear models.

Keywords: Microaggregation; Individual ranking; Bias; Innovation data (search for similar items in EconPapers)
JEL-codes: C80 O30 (search for similar items in EconPapers)
Date: 2011-01
New Economics Papers: this item is included in nep-ino, nep-knm and nep-sbm
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:30403

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