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KDI 경제교육·정보센터

ENG
  • 경제배움
  • Economic

    Information

    and Education

    Center

최신자료
Learning by Mail: The Impact of Correspondence Schools in Early 20th Century America
NBER
2026.07.09
This paper examines correspondence education as an alternative educational pathway in early 20th-century America. Using newly digitized records from the International Correspondence Schools―the largest such institution, with over 4 million students by 1940―linked to census data, I show that enrollment increased the likelihood of skilled employment by 6-10pp within 3-10 years, particularly among younger students who used it as a substitute for high school. I develop a general equilibrium Roy-style model where individuals sort into educational options by ability. Consistent with the model, correspondence education facilitated skill acquisition for lower-ability individuals and improved selection into high school, amplifying its returns.