Background. Excessive loss of muscle mass in advanced age is a major risk factor forcdecreased physical ability and falls. Physical activity and exercise training are typically recommended to maintain muscle mass and prevent weakness. How exercise in different stages of life relates to muscle...

In current immigration debates ethnic prejudice is often expressed in a subtle manner, which conceals its xenophobic content. However, previous research has only insufficiently examined the specific features that make certain ethnically prejudicial statements subtler, i.e., less readily...

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....

The paper gives an overview of two experiments implemented in the German Socio-Economic Panel (SOEP) considering the effect of monetary incentives on cross-sectional and longitudinal response propensities. We conclude that the overall effects of monetary incentives on response rates are positive...