How do Classmates Matter for the Class-size Effects?

Ryuichi Tanaka and Tong Wang

Discussion papers from Research Institute of Economy, Trade and Industry (RIETI)

Abstract: This paper studies the effect of class-size reduction on students’ academic outcomes with a special focus on its heterogeneity based on classmates’ characteristics. We estimate the causal effects of class-size reduction on students’ mathematics and language test scores, controlling student-teacher fixed effects and applying the predicted class size with a cap as an instrument for the actual class size. Using rich panel data on Japanese primary school students, we find that the average effect of class size reduction is positive and robust for math test scores and that classes with high-ability classmates benefit even more from class size reduction. We find that the effect of class size reduction depends positively on the ability of the student with the lowest rank in a class. In addition, we find that classes with a high share of female students benefit more from class size reduction. Our findings provide strong support for the theoretical framework of Lazear (2001).

Pages: 26 pages
Date: 2024-01
New Economics Papers: this item is included in nep-edu and nep-ure
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.rieti.go.jp/jp/publications/dp/24e004.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eti:dpaper:24004

Access Statistics for this paper

More papers in Discussion papers from Research Institute of Economy, Trade and Industry (RIETI) Contact information at EDIRC.
Bibliographic data for series maintained by TANIMOTO, Toko ().