This paper evaluates how sharing a kindergarten classroom with low-achieving repeaters affects the long-term educational performance of regular first-time kindergarten students. Exploiting random assignment of teachers and students to classes in Project STAR, I document three sets of causal...

This volume was prepared by Jens Ruhose while he was working at the Ifo Institute. It was completed in December 2014 and accepted as a doctoral thesis by the Department of Economics at the University of Munich. It includes four self-contained chapters that contribute to the understanding of the...

This paper examines the long-term impacts on health and healthy behaviors of two of the oldest and most widely cited U.S. early childhood interventions evaluated by the method of randomization with long-term follow-up: the Perry Preschool Project (PPP) and the Carolina Abecedarian Project (ABC)....