Judge Richard Posner presented at the third annual conference on Law and Mind Sciences,The Free Market Mindset: History, Psychology, and Consequences, which took place on March 7, 2009 at Harvard Law School.

Following his graduation from Harvard Law School, Judge Posner clerked for Justice William J. Brennan Jr. From 1963 to 1965, he was assistant to Commissioner Philip Elman of the Federal Trade Commission. For the next two years he was assistant to the solicitor general of the United States. Prior to going to Stanford Law School in 1968 as Associate Professor, Judge Posner served as general counsel of the President's Task Force on Communications Policy. He first came to the Law School in 1969, and was Lee and Brena Freeman Professor of Law prior to his appointment in 1981 as a judge of the U.S. Court of Appeals for the Seventh Circuit, where he currently presides. He was the chief judge of the court from 1993 to 2000.