Item non-response on income and wealth questions |
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Authors: | Regina T Riphahn Oliver Serfling |
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Institution: | (1) University of Basel, P.O. Box 517, 4003 Basel, Switzerland;(2) IZA Bonn, DIW, Berlin |
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Abstract: | This study investigates the mechanisms determining item nonresponse focusing on three issues: First, is there significant heterogeneity in item non-response across financial questions and in the association of covariates with item non-response across outcomes? Second, can the informational value of surveys be improved by matching interviewers and respondents based on their characteristics? Third, how does offering a “don’t know” answer option affect respondent behavior? The questions are answered based on detailed survey and interviewer data from the German Socioeconomic Panel using a broad set of income and wealth outcomes. We find considerable heterogeneity in non-response across financial items, little explanatory power of interviewer-respondent matches and strong evidence that ‘‘don’t know’’ answers result from mechanisms that differ from those yielding valid responses and outright refusals to respond. |
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Keywords: | Item non-response survey quality interviewer effects income and wealth |
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