Harvard Law School
Dr. Greiner is the Honorable S. William Green Professor of Public Law at Harvard Law School. In 1991, he obtained a BA with High Honors from the University of Virginia, which he maintains is the greatest place in the universe. From 1991 to 1992, he was a Rotary International scholar in the Dominican Republic. In 1995, he graduated from the University of Michigan Law School, where he was an Articles Editor for the Michigan Law Review. From 1995 to 1996, he clerked for the Honorable Patrick E. Higginbotham on the US Court of Appeals for the Fifth Circuit. He then practiced law for six years in Washington, DC, three for the US Department of Justice’s Civil Division, Federal Programs Branch, and three for the law firm of Jenner & Block. He tried to focus his practice on employment discrimination, voting rights, and the Decennial Census, but alas, he also had to learn how airplanes get on and off aircraft carriers (in the A-12 litigation), as well as how to deal with structural injunctions in long-running housing desegregation cases. In 2007, he obtained a PhD from Harvard’s Department of Statistics, joined the Harvard Law School faculty the same year, and was awarded tenure in 2012. His current research is entirely within and devoted to the Access to Justice Lab, which implements randomized field experiments to find out what works for individuals and families who cannot afford to hire lawyers. The Access to Justice Lab is the only entity in the US that focuses on randomized control trials in the legal profession.