While the current empirical literature on peer group effects in schools highlights that credible causal peer effects cannot be estimated unless parental sorting is taken into account, the present paper highlights that causal peer effects might be conditional on the learning environment in which...

We use data from a large field experiment where young students were pulled out of their regular classes and offered mathematics instruction in small homogenous groups, to investigate the importance of the tutors' instructional practices. The analyzes are limited to low achievers, and the...

How much young children should be tested and graded is a highly contentious issue in education policy. Opponents consider it detrimental to child mental health, leading to misaligned incentives in educational policy and having little if any redeeming impact on educational performance. Others see...

We investigate whether the academic performance of non-eligible students - in an institutional setting of full inclusion - are affected by special education resources. Special education resources are per definition provided in a compensatory manner, and are increasingly being targeted to...

We investigate whether the academic performance of non-eligible students - in an institutional setting of full inclusion - are affected by special education resources. Special education resources are per definition provided in a compensatory manner, and are increasingly being targeted to...