In 2005, Peterson and his colleagues set up a for-profit company to provide and produce a writing therapy program with a series of online writing exercises. Titled the Self Authoring Suite, it includes the Past Authoring Program (a guided autobiography); two Present Authoring Programs which allow the participant to analyze their personality faults and virtues in terms of the Big Five personality model; and the Future Authoring Program which guides participants through the process of planning their desired futures. The latter program was used with McGill University undergraduates on academic probation to improve their grades, as well as since 2011 at Rotterdam School of Management, Erasmus University. The programs were developed partially from research by James W. Pennebaker at the University of Texas at Austin and Gary Latham at the Rotman School of Management of the University of Toronto. Peterson's co-authored 2015 study showed significant reduction in ethnic and gender-group differences in performance, especially among ethnic minority male students. According to Peterson, more than 10,000 students have used the program as of January 2017, with drop-out rates decreasing by 25% and GPAs rising by 20%.