TY - JOUR AU - Hanushek,Eric A. AU - Woessmann,Ludger TI - Does Educational Tracking Affect Performance and Inequality? Differences-in-Differences Evidence across Countries JF - National Bureau of Economic Research Working Paper Series VL - No. 11124 PY - 2005 Y2 - February 2005 UR - http://www.nber.org/papers/w11124 L1 - http://www.nber.org/papers/w11124.pdf N1 - Author contact info: Eric A. Hanushek Hoover Institution Stanford University Stanford, CA 94305-6010 Tel: 650/736-0942 Fax: 650/723-1687 E-Mail: hanushek@stanford.edu Ludger Woessmann University of Munich Ifo Institute for Economic Research and CESifo Poschingerstr. 5 81679 Munich, Germany E-Mail: woessmann@ifo.de AB - Even though some countries track students into differing-ability schools by age 10, others keep their entire secondary-school system comprehensive. To estimate the effects of such institutional differences in the face of country heterogeneity, we employ an international differences-in-differences approach. We identify tracking effects by comparing differences in outcome between primary and secondary school across tracked and non-tracked systems. Six international student assessments provide eight pairs of achievement contrasts for between 18 and 26 cross-country comparisons. The results suggest that early tracking increases educational inequality. While less clear, there is also a tendency for early tracking to reduce mean performance. Therefore, there does not appear to be any equity-efficiency trade-off. ER -