Table 5 Effects of Average Class Size in Compulsory School (Grades 1–9) by Parental Background, Baseline Population
SchoolingLog-EarningsEarnings
Panel A1: Fathers’ Income
First quartile

–0.0161

(0.0144)

0.0019

(0.0030)

0.0018

(0.0037)

Second and third quartile

–0.0098

(0.0107)

0.0022

(0.0020)

0.0034

(0.0025)

Fourth quartile

–0.0010

(0.0200)

–0.0067**

(0.0029)

–0.0024

(0.0044)

Panel A2: Mothers’ Income
First quartile

–0.0016

(0.0133)

–0.0007

(0.0030)

0.0016

(0.0040)

Second and third quartile

–0.0134

(0.0126)

–0.0011

(0.0021)

0.0003

(0.0028)

Fourth quartile

–0.0088

(0.0158)

0.0050*

(0.0028)

0.0060

(0.0041)

Panel A3: Family Income
First quartile

–0.0065

(0.0145)

0.0009

(0.0029)

0.0004

(0.0035)

Second and third quartile

–0.0130

(0.0127)

0.0008

(0.0019)

0.0019

(0.0027)

Fourth quartile

–0.0053

(0.0196)

–0.0021

(0.0028)

0.0032

(0.0043)

Panel B: Parental Education
Low education

–0.0142

(0.0144)

0.0009

(0.0035)

–0.0010

(0.0042)

Other families

–0.0060

(0.0104)

0.0002

(0.0019)

0.0029

(0.0024)

Panel C: Immigrant Status
Immigrant

–0.0039

(0.0360)

–0.0075

(0.0067)

–0.0022

(0.0104)

Nonimmigrant

–0.0083

(0.0094)

0.0009

(0.0018)

0.0026

(0.0023)

Panel D: Sex
Boy

–0.0043

(0.0117)

0.0013

(0.0027)

0.0039

(0.0038)

Girl

–0.0105

(0.0117)

–0.0006

(0.0019)

–0.0001

(0.0022)

  • Notes: This table shows the IV estimates using the baseline specification in Table 3 fully interacted with individual and family background characteristics. Panel A1, A2, and A3 show the class-size effects for students with low (first quartile), middle (second and third quartiles), and high-income (fourth quartiles) fathers, mothers, and families, respectively. Panel B shows the class-size effect for pupils from low education families (neither parent has more than compulsory schooling) and other families, Panel C how the class-size effect for students with immigrant and nonimmigrant background, and Panel D shows the class-size effect for both genders. Standard errors clustered at the school level are reported in parentheses. *p < 0.10, **p < 0.05.