Jonah E. Rockoff is an American education economist and currently works as Professor of Finance and Economics at the Columbia Graduate School of Business.
For example, he estimates that increasing teacher quality by one standard deviation raises reading and math test scores by approximately 0.20 and 0.24 standard deviations, respectively, and reading scores are found to increase in teachers' experience.
[13] More recently, Rockoff and his co-researchers Raj Chetty and John Friedman have researched better ways to measure the effectiveness of teachers, with a focus on the value added methodology.
[14][15][16] Next to his research on teachers, Rockoff has also studied public schools, the impact of sex offender registration, and the relationship between crime risk and property values.
[18] In work with Leigh Linden, Rockoff observes that house prices within 0.1 miles of a sex offender fall on average by 4%.