Summary This paper focuses on fraud detection in surveys using Socio-Economic Panel (SOEP) data as an example for testing newly methods proposed here. A statistical theorem referred to as Benford’s Law states that in many sets of numerical data, the significant digits are not uniformly...

Many validation studies deal with item nonresponse and measurement error in earnings data. In this article, the author explores respondents’ motives for failing to reveal earnings using the German Socio-Economic Panel (SOEP). The SOEP collects socioeconomic information from private...