The article discusses the conflict of goals between fair compensation for performance and equitable support based on need in modern welfare states, which is a subject of controversy in various disciplines. It answers the question of the extent to which this policy problem of modern welfare...

This paper examines the implication of the move to CAPI for data quality by analyzing the conversion from PAPI to CAPI of a subsample of the German Socio-Economic Panel (SOEP) which was done within an experimental design. The 2000 addresses for the sample E of SOEP were split into two subsamples...