 Confesor earned a Bachelor of Arts in Literary Studies, "magna cum laude" and "class valedictorian" from Maryknoll College (now Miriam College) in 1971.She obtained a Master of Business Administration from the Ateneo Graduate School of Business of the Ateneo de Manila University in 1978.She earned a Master of Public Policy and Administration degree from the John F. Kennedy School of Government of Harvard University, as an Edward S. Mason Fellow, in 1990.