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Respondent Behavior in Panel Studies: A Case Study for Income-Nonresponse by Means of the German Socio-Economic Panel (GSOEP)

Discussion Papers 299, 32 S.

Jörg-Peter Schräpler

2002. Okt.

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Many validation studies deal with item-nonresponse and measurement error in earnings data. In this paper we explore motives of respondents for the failure to reveal earnings using the German Socio-Economic Panel (GSOEP). GSOEP collects socio-economic information of private households in the Federal Republic of Germany. We explain the evolution of income-nonresponse in the GSOEP and demonstrate the importance of a discrimination between refusing the income-statement or don't know.

JEL-Classification: C81
Keywords: Respondent behavior; Interviewer effects; Item-Nonresponse; Panel analysis; Multilevel modeling
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