The economics of class size

D. W. Schanzenbach*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations


This article out lines the impact of reducing class size on student achievement. Following a brief discussion of Lazear's theory of classroom production, the experimental and quasi-experimental evidence on class-size reduction are reviewed. In sum, among the studies with the most credible identification strategies, most find that reducing class size improves student outcomes.

Original languageEnglish (US)
Title of host publicationInternational Encyclopedia of Education
PublisherElsevier Ltd
Number of pages7
ISBN (Print)9780080448947
StatePublished - 2010


  • Class size
  • Class-size reduction
  • Education reform

ASJC Scopus subject areas

  • Economics, Econometrics and Finance(all)


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