López, Alberto (2011): The effect of microaggregation on regression results: an application to Spanish innovation data.
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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.
|Item Type:||MPRA Paper|
|Original Title:||The effect of microaggregation on regression results: an application to Spanish innovation data|
|Keywords:||Microaggregation; Individual ranking; Bias; Innovation data|
|Subjects:||O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development; Intellectual Property Rights > O30 - General
C - Mathematical and Quantitative Methods > C8 - Data Collection and Data Estimation Methodology; Computer Programs > C80 - General
|Depositing User:||Alberto López|
|Date Deposited:||21. Apr 2011 12:15|
|Last Modified:||12. Feb 2013 19:57|
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