. Why the United States Led in Education: Lessons from Secondary School Expansion, 1910 to 1940. In: Human Capital and Institutions. Cambridge University Press; 2009.
High School Movement
. Mass Secondary Schooling and the State: The Role of State Compulsion in the High School Movement. In: Understanding Long Run Economic Growth. University of Chicago Press; 2011.
. The Race Between Education and Technology. Harvard University Press; 2008. Website
