He was one of the first people to study the performance of experts versus novices in forecasting stock prices.
[6] After four years of outstanding performance in intercollegiate forensics, Cox was chosen to establish the Department of Public Speaking at Wabash College after his graduation.
[3][1] When the United States entered World War I, Cox claimed an exemption from military service based on his Quaker beliefs.
[7] He did volunteer to go to the Western Front to serve as an aid worker for the American Friends Service Committee.
[1] In 1930, Cox was one of the first researchers to compare the performance of experts versus novices in forecasting stock prices.
[11][12][13] Cox was also one of the authors of the 1933 Chicago plan which called for banking reforms at the start of the Great Depression.
He also served as an economic consultant to business firms, appeared as an expert before several state public-service commissions, and was a noted speaker.
[16] Cox was a founder of the 57th Street Meeting of Friends in Chicago and served as its clerk for more than twenty years.