For several years, I have sponsored an annual lecture series about education policy at Wellesley College, my alma mater. We have had a number of distinguished speakers, including Pasi Sahlberg, Yong Zhao, Andy Hargreaves, and Eve Ewing.

This year, the invited speaker was Dr. Helen Ladd, one of the nation’s most eminent economists of education. Dr. Ladd is the Susan B. King Professor Emerita of Public Policy and Economics at Duke University. She graduated from Wellesley in 1967, earned her M.A. at the London School of Economics and her Ph.D. from Harvard University. She has written extensively about school finance, equity, choice, and accountability.

Dr. Ladd discussed how charter schools disrupt good education policy.