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Can Small Class Policy Close The Gap? An Empirical Analysis Of Class Size Effects In Japan

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  • Hideo Akabayashi
  • Ryosuke Nakamura

Abstract

Can a smaller-class at school lead to a better educational outcome and more equality in achievement? We estimate the causal effects of class-size on achievement tests by using discontinuous changes in class-size under the Japanese public compulsory education system. We employ a value-added model using achievement test conducted at two different times during the same school year. Our results show a reduction in class-size has significant positive effects on Japanese language test scores in the sixth grade especially at schools in wealthy areas. That is, we find no evidence that a universal small-class policy closes the achievement gap among schools.

Suggested Citation

  • Hideo Akabayashi & Ryosuke Nakamura, 2012. "Can Small Class Policy Close The Gap? An Empirical Analysis Of Class Size Effects In Japan," Working Papers e051, Tokyo Center for Economic Research.
    • Handle: RePEc:tcr:wpaper:e51
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