Class-Size Effects in School Systems Around the World: Evidence from Between-Grade Variation in TIMSS
Ifo Institute for Economic Research; Institute for the Study of Labor (IZA); CESifo (Center for Economic Studies and Ifo Institute for Economic Research); University of Munich - Ifo Institute for Economic Research
Martin R. West
IZA Discussion Paper No. 485; Harvard University, Program on Education Policy and Governance, Working Paper No. PEPG/02-02
We estimate the effect of class size on student performance in 18 countries, combining school fixed effects and instrumental variables to identify random class-size variation between two adjacent grades within individual schools. Conventional estimates of class-size effects are shown to be severely biased by the non-random placement of students between and within schools. Smaller classes exhibit beneficial effects only in countries with relatively low teacher salaries. While we find sizable beneficial effects of smaller classes in Greece and Iceland, the possibility of even small effects is rejected in Japan and Singapore. In 11 countries, we rule out large class-size effects.
Number of Pages in PDF File: 65
Keywords: Educational Production, Class Size, Student Sorting, School Fixed Effects, Instrumental Variables, TIMSS
JEL Classification: I2working papers series
Date posted: June 4, 2002
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