The paper contributes to the literature on ability grouping in schools by taking student incentives into account. Education provides both a signal on unobservable ability and improves productivity after education. Sorting sets better incentives in primary education and allows for improved peer...

Educational tracking is a very controversial issue in education. The tracking debate is about the virtues of uniformity and vertical differentiation in the curriculum and teaching. The pro- tracking group claims that curriculum and teaching better aimed at children's varied interest and skills...

Educational tracking is a very controversial issue in education. The tracking debate is about the virtues of uniformity and vertical differentiation in the curriculum and teaching. The pro-tracking group claims that curriculum and teaching better aimed at children's varied interest and skills...