<p>There is a well established socioeconomic gradient in educational attainment in all countries: young people from a low socioeconomic status (SES) will, on average, receive less education and do less well at school. While this is true virtually everywhere, this SES gradient is noticeably higher...</p>

Much empirical research in economics is based on data from household surveys. Panel surveys are particularly valuable for understanding dynamics and heterogeneity. A possible concern with panel surveys is that survey participation itself may alter subsequent behavior. We provide novel evidence...