JSM 2004 - Toronto

Abstract #300611

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Activity Number: 371
Type: Topic Contributed
Date/Time: Wednesday, August 11, 2004 : 2:00 PM to 3:50 PM
Sponsor: Business and Economics Statistics Section
Abstract - #300611
Title: Some Aspects About the Quality of Income Data from Sample Surveys
Author(s): Rosalia Castellano*+ and Claudio Quintano and Andrea Regoli
Companies: Parthenope University of Naples and Parthenope University of Naples and Parthenope University of Naples
Address: Dept. of Statistics and Mathematics, Napoli, 80133, Italy
Keywords: missing data ; imputation ; validity
Abstract:

We aim at investigating some dimensions of the quality of income data from two Italian sample surveys, namely the Survey of Household Income and Wealth conducted by the Bank of Italy and the national component of the European Community Household Panel. In addition, the U.S. Panel Study of Income Dynamics is considered, which is a long-standing longitudinal survey. The data quality on sensitive topics such as income depends crucially on the control of nonsampling errors that are caused by nonresponses and response errors. As a consequence the estimates of the resulting income distribution, as well as any measure of the correlation between income and other variables, may suffer from inefficiency and bias. The main dimensions of the quality concept that we deal with are the accuracy and the validity of the information that is produced and disseminated. Special attention is devoted to the editing, weighting, and imputation methods currently adopted for these surveys, through which any erroneous value is corrected and any missing value is compensated for.


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