From 1973 to 1976, he was researcher in econometrics for the Université de Montréal. In 1976, he became a La Presse columnist specialized in economics. From 1985 to 1988, he also hosted the weekly television show Questions d'argent on Radio-Québec (now Télé-Québec) on economics and personal finances. Dubuc was appointed chief editorialist of La Presse in 1988, a position he held until 2001, when he was succeeded by André Pratte.
National Newspaper Award for editorial commentary (1999, 2000, and finalist in 2001)
In 2011, he was made an Officer of the Order of Canada "for his contributions as a journalist, columnist and author covering economic and political issues in Canada".[1]