While surveying measured weight is widely unpractical in national samples, self-reported weight is a simple and inexpensive method of collecting data. This paper deals with data quality of reported body weight in the German Socio-Economic Panel Study (SOEP). Previous research shows that data on...

Incomplete data is a common problem of survey research. Recent work on multiple imputation techniques has increased analysts' awareness of the biasing effects of missing data and has also provided a convenient solution. Imputation methods replace non-response with estimates of the unobserved...

Drawing on data from the twenty year long German Socioeconomic Panel Study, we show that partisanship is bounded. Almost every West German, East German, and immigrant never supports one or both of the major parties and most people vary support for their party by claiming no partisan preference....