Ammermüller, Andreas; Pischke, Jörn-Steffen - 2006
with peer group composition. For example, consider a remedial class
room with relatively poorly performing children … a class is about to be assigned a particularly
bad teacher, the parents of the best students may move their children to … their children. In fact, Woessmann (2004) found the
number of books to be the single most important predictor of reading …