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Working Paper

Helen Ladd, Jennifer A. Heissel

Education Systems & Policies
Student Outcomes & Achivement
Working Paper

Helen Ladd, Charles Clotfelter, John B. Holbein

Education Systems & Policies
Student Outcomes & Achivement
Working Paper

John B. Holbein, Helen Ladd

Education Systems & Policies
Student Outcomes & Achivement
Working Paper
Education Systems & Policies
Student Outcomes & Achivement
Working Paper
Education Systems & Policies
Student Outcomes & Achivement
Working Paper

Helen Ladd, Douglas Lauen

Education Systems & Policies
Student Outcomes & Achivement